the subgenus andrena (micrandrena) (hymenoptera ... · andrena tenuistriata pérez, 1895 and...

Accepted by C. Rasmussen: 9 Sept. 2014; published: 13 Oct. 2014

ZOOTAXA

ISSN 1175-5326 (print edition)

ISSN 1175-5334 (online edition)Copyright © 2014 Magnolia Press

Zootaxa 3872 (5): 467–497

www.mapress.com/zootaxa/

Article

467

http://dx.doi.org/10.11646/zootaxa.3872.5.3

http://zoobank.org/urn:lsid:zoobank.org:pub:6EB04C2A-1D72-400D-8DC2-0D9CEC82D60A

The subgenus Andrena (Micrandrena) (Hymenoptera: Andrenidae)

in the Iberian Peninsula

MARÍA JOSÉ DARDÓN1,4

, FÉLIX TORRES2

& CONCEPCIÓN ORNOSA3

1

Unidad para el Conocimiento, Uso y Valoración de la Biodiversidad, Centro de Estudios Conservacionistas, Facultad de Ciencias

Químicas y Farmacia, Universidad de San Carlos de Guatemala. Avenida Reforma 0–63, Zona 10. CP 01010. Ciudad de Guatemala,

Guatemala. E-mail: [email protected], [email protected]

2

Departamento de Biología Animal, Ecología, Parasitología y Edafología. Universidad de Salamanca. Campus Miguel de Unamuno,

s/n. E-37071 Salamanca, España

3

Departamento de Zoología y Antropología Física. Facultad de Biología. Universidad Complutense. C/José Antonio Nováis, 2. E-

28040 Madrid, España

4

Corresponding author

Abstract

This work presents the results obtained after a revision of the current species of the subgenus Andrena (Micrandrena)

Ashmead, 1899 that appear in the Iberian Peninsula. It provides a key to the species, diagnosis, biological data, and

comments about the 19 species and 5 subspecies. Additionally, it includes a redescription of five species because their

original descriptions were inadequate. Newly reported for the Iberian Peninsula are Andrena floricola Eversmann, 1852

and Andrena strohmella Stöckhert, 1928. This study is the first contribution to resolve certain taxonomic problems in the

subgenus Andrena (Micrandrena); however, the use of additional tools like morphometric and molecular characters are

recommended in the future to confirm the taxonomic status of Andrena spreta Pérez, 1895.

Key words: Apoidea, Synonymy, Spain, Portugal

Resumen

Este trabajo presenta los resultados obtenidos después de la revisión morfológica de las especies presentes en la Península

Ibérica del subgénero Andrena (Micrandrena) Ashmead, 1899. Se incluye la clave dicotómica para machos y hembras,

diagnosis y comentarios taxonómicos de 19 especies y 5 subespecies. Así como también la redescripción de 5 especies,

debido a que las descripciones originales eran demasiado escuetas. Dentro de la información proporcionada, destacan las

primeras citas en la Península Ibérica de Andrena floricola Eversmann, 1852 y Andrena strohmella Stöckhert, 1928. Este

estudio es la primera contribución para resolver ciertos problemas taxonómicos en el subgénero Andrena (Micrandrena);

sin embargo, en el futuro, es deseable el empleo de caracteres morfométricos y moleculares para confirmar los resultados

presentados en este trabajo sobre el estatus taxonómico de Andrena spreta Pérez, 1895.

Palabras clave: Apoidea, Sinonimia, España, Portugal

Introduction

Bees (Hymenoptera: Apoidea) have been classified into different families by different authors following a diverse

set of criteria, however, the proposal by Michener (2007) is here used. This author recognize seven families:

Andrenidae, Colletidae, Halictidae, Melittidae, Stenotritidae, Megachilidae, and Apidae. Within the family

Andrenidae is the genus Andrena Fabricius, with close to 1,400 species described. In Europe, there are between

650 and 700 species present (Laberge 1986; Michener 2007; Gusenleitner & Schwarz 2002). The large number of

species in this genus has complicated the classifications, and as of now 95 subgenera have been described, with 52

present in the Western Palearctic region (Warncke 1968; Michener 2007; Schmid-Egger 2005).

DARDÓN ET AL.468 · Zootaxa 3872 (5) © 2014 Magnolia Press

Micrandrena Ashmead, 1899, is one of the largest subgenera of the genus Andrena in the Western Palearctic

region, with at least 34 species (Michener 2007). Andrena (Micrandrena) consists of species with individuals of

usually small size, and sparse pubescence on the sides of the propodeum. This subgenus is distributed throughout

the Holarctic region, Neotropically through Panama, and the northern part of the East, with most of the species in

the Western Palearctic (Warncke 1968; Michener 2007).

The taxonomy of the species of Andrena is complex and incomplete. There are a large number of synonyms,

rearrangements, and new subgenera that have been created at the suggestion of many different authors (Laberge

1964, 1971a, 1971b, 1977, 1986; Dylewska 1987; Michener 2007; Dubitzky & Schönitzer 2001; Gusenleitner &

Schwarz 2002). The absence of specific criteria, together with the dispersion of data, have traditionally been the

main obstacles to addressing the study of Andrena; and therefore, there is a need to organize the genus, beginning

in this work with the revision of the species in the Iberian Peninsula belonging to the subgenus Andrena

(Micrandrena).

Materials and methods

Material studied. This study included 1,333 specimens (including types or paratypes where possible) which have

been deposited in the major European collections listed below (the name of the curator responsible for specimens is

included): MPARIS: Museum of Natural History in Paris (Claire Villemant); MBERLIN: Museum of Natural

History of Humboldt University, Berlin (Frank Koch); MNCNM: National Museum of Natural Sciences in Madrid

(Amparo Blay); OLINZ: Biology Centre of the National Museum of Upper Austria, Linz (Fritz Gusenleitner);

UCM: Collection of the Department of Zoology, University Complutense, Madrid (Angeles Vázquez); USAL:

Collection of Zoology, University of Salamanca. The institutions visited are recognized as places where the most

prominent material has been deposited for the study of the subgenus Andrena (Micrandrena) in the Iberian

Peninsula.

Additionally, it should be noted that many of the specimens were identified by the specialist Klaus Warncke, so

when the identifier is omitted, it should be assumed that the specimen was identified by K. Warncke. Furthermore,

when the handwriting on the labels of the specimens studied was illegible, the information is presented with a

question mark, as well as when the labels lacked collection data, a date, or the collector (leg.). The text is directly

copied from the label and when additional information was add it is placed in hard brackets.

Morphology and employed structures. In this work it was necessary to evaluate different anatomical structures.

The morphological terms used in this paper mainly follow Michener (2007) and Schmid-Egger and Scheuchl

(1997). The following abbreviations are used throughout this study:

AS: antennal segment (scape=A1 and so on numbered), E: space between punctures relative to the diameter of

each depression, PBH: puncture bearing hair, PP: puncture, T: metasomal tergum. Any new or different

morphological terms will be explained in the text.

The species Andrena abjecta Pérez, 1895, Andrena exigua Erichson, 1835, Andrena icterina Warncke, 1974,

Andrena tenuistriata Pérez, 1895 and Andrena tiaretta Warncke, 1974 are found almost exclusively in the Iberian

Peninsula and North Africa. For this reason their redescriptions are provided in this paper.

Results

Key to the Iberian Peninsula Species of Andrena (Micrandrena)

Females

1. T1

with weak or absent microsculpture. Very deep punctures, dense (E=1) and, generally, of same size and depth as the scutum

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

- T1

with evident microsculpture, not shiny or delicate. Impunctate, however, if present, intermingled with microsculpture, with

less size and depth than present in scutum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Facial fovea clearly narrowed with a comma-shape. Whole clypeus with microsculpture. Wing veins dark brown . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena nana (Kirby, 1802)

Clypeus with a strong and dull microsculpture, with evident and more or less dense PPs, E=1–2. Individuals with a strongly

punctate metasomal terga with a microsculpture on its integument that is weak or seems to be absent

Zootaxa 3872 (5) © 2014 Magnolia Press · 469SUBGENUS ANDRENA (MICRANDRENA) IN THE IBERIAN PENINSULA

- Facial fovea narrow, with same upper and lower shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3. Clypeus punctate with microsculpture evident in at least 4/5 parts. Dorsolateral convexity with a shiny bulky zone in T2

–T3

with microsculpture almost absent. Body length 7–8 mm. Pubescence yellow . . . . . . . . . Andrena floricola Eversmann, 1852

Long facial fovea and clearly exceeding the lower edge of the antennal socket. The metasoma is slightly rounded. T1

weakly

curved, as the bases of T2

to T4

disks; with tenuous and radiant microesculpture, with evident but scarce PPs

- Clypeus punctate without microsculpture in more than 2/3 parts. Dorsolateral convexity of T2

–T3

with evident microsculpture.

Body length 6 mm. Pubescence brownish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . aff. Andrena enslinella

4. Dorsolateral convexity of T1

with a clearly bulky zone in distal portion, elevated over T2

. . . . Andrena falsifica Perkins, 1915

Long facial fovea and clearly exceeding the lower edge of the antennal socket. Clypeus slightly convex with microsculpture,

with a dense and an evident PPs, E=1–3. Metasoma rounded

- Dorsolateral convexity of T1

without a bulky zone in distal portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5. T1

with weak fold on each side reaching middle of disc. Pubescence yellow. Metasoma wider than mesosoma . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena strohmella Stöckhert, 1928

Clypeus with microsculpture and weakly flattened from the middle to the bottom edge. Scutum with tenous and shiny

microsculpture, with dense and shallow PPs. Metasoma, starts at T1

, with a weak shiny microsculpture

- T1

without lateral fold. Dorsolateral convexity sometimes with a short lateral bulky zone, but in this case pubescence is white

and scarce. Metasoma narrower than mesosoma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6. Clypeus strongly flattened in middle zone, with strong and dull microsculpture. PP small, shallow and irregular, E=1–6. Pro-

cess of labrum bilobated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena saxonica Stöckhert, 1935

Scutum with rough microsculpture intermingled with dense PPs. Metasomal terga with weak PPs, more evident on the sides of

the discs. Marginal zones slightly marked

- Clypeus more or less convex, sometimes a little flat in lower part. Process of labrum not bilobated . . . . . . . . . . . . . . . . . . . . 7

7. At low magnification, evident punctures of T2

–T3

(in Andrena bayona may be present only in T3

), by absence of microsculp-

ture in area bounded by apical margin of compound eye, lateral ocellus and top edge of occiput runs to this couplet . . . . . . 8

- At low magnification, no evident punctures of T2

–T3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

8. Area bounded by apical margin of compound eye, lateral ocellus and top edge of occiput without microsculpture and very

shiny. Middle area of pronotum, scutum and scutellum are shiny . . . . . . . . . . . . . . . . . . . . . . Andrena bayona Warncke, 1975

Scutum with rough microsculpture on its anterior zone and absent in the middle area; with strong and dense PPs. T1

with dense

and rough microsculpture; and evident PPs

- Area bounded by apical margin of compound eye, lateral ocellus and top edge of occiput with dull microsculpture. Pronotum

not shiny . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

9. T2

–T4

with punctures as strong as in scutum, or at least seem to be due to absence of microsculpture on discs . . . . . . . . . . 10

- T2

–T4

with punctures not strongly highlighted between microsculptures of the discs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

10. Marginal zones of T without microsculpture or much weaker than in discs, therefore looks very bright . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Andrena semilaevis Pérez, 1903

Long facial fovea, clearly exceeding the lower edge of the antennal socket; upper area is 0.6 wider than the lower zone.

Clypeus slightly convex and with a little shiny microsculpture; with strong and dense PPs, with an impunctate longitudinal

line in the middle, E=1–3

- Marginal zones of T with rough microsculpture much stronger than in discs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

11. T1

with strong microsculpture and punctures less evident than in following Ts . . . . . . . Andrena niveata niveata Friese, 1887

Long facial fovea, clearly exceeding the lower edge of the antennal socket; upper area is almost 2 times the lower zone.

Clypeus, on the middle area, with shiny microsculpture and dense PPs, E=1–2. Lanceolate metasoma with evident microsculp-

ture

- T1

with weak microsculpture and punctures clearly evident as in rest of Ts . . . . . . . . . Andrena niveata lecana Warncke, 1975

A taxon endemic to Spain

12. Clypeus bright in apical half (at least), convex, with punctures defined. Marginal zone of T2

clearly punctate . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena exigua Erichson, 1835

Long facial fovea, clearly exceeding the lower edge of the antennal socket; upper area is similar to the lower zone. Clypeus

slightly convex with scarce PPs, especially on the distal region E=3–4. Metasomal terga with regular and shallow PPs, they

are smaller those in the scutum

- Clypeus, in its entirety, with dull microsculpture and rough punctures. Marginal zone of T2

smooth or, at most, with some iso-

lated punctures on base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

13. Clypeus not flattened, in its entirety, with microsculpture and coarse punctures, more or less . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena alfkenella alfkenella Perkins, 1914

Shiny clypeus with microsculpture over its entire surface; with big and rough PPs, denser in the distal region than on the basal

zone.T1

with patent microsculpture and isolated punctures. Marginal zones on the terga slightly marked, especially at middle

- Clypeus flattened at center, brighter at lower edge of upper half . . . . . . . . . . . . . . . Andrena alfkenella sunna Warncke, 1975

14. Microsculpture clear and strong (usually dull) on clypeus, scutum and scutellum, all with same type of microsculpture on

entire surface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

- Microsculpture not strong and shiny, at least on clypeus, scutum or scutellum generally brighter than others . . . . . . . . . . . 18

15. Facial fovea slightly exceeds antennal socket. Marginal zones wide, 0.5 times length of terga . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Andrena icterina Warncke, 1974


Clypeus with microsculpture, apical region shinier than the rest; it is weakly flattened from the middle to the bottom edge. T1

with microsculpture and impunctate. T2

–T4

with rough microsculpture

- Facial fovea clearly exceeds antennal sockets by diameter. Marginal zones occupy 0.4 times length of terga . . . . . . . . . . . 16

16. Process of labrum wider than long, occupies, at its base, at least 0.5 lower margin of clypeus. Clypeus with small defined punc-

tures. Pubescence in scutum intermingled with shorter hairs . . . . . . . . . . . . . . . . . . . . . . . Andrena subopaca Nylander, 1848

Convex clypeus with a fine and smooth microsculpture, slightly shiny; PPs in the lower portion slightly larger than in the upper

zone. T1

–T6

with weak but shiny microsculpture and tenuous PPs, E=3–6, scarcer on the latest metasomal terga

- Process of labrum longer than wide, small, at base occupies about 0.2 of lower margin of clypeus. Clypeus without defined

punctures, shallow and not evident. Pubescence is evident, although not dense, with some large hairs . . . . . . . . . . . . . . . . . 17

17. Clypeus flattened at lower part. Process of labrum linguiform . . . . Andrena simontornyella simontornyella Noskiewicz, 1939

Wide facial fovea. Clypeus with the central area slightly flattened, over the entire surface with microsculpture; with shallow

and scarce PPs, E=2–3. Scutum and scutellum with PPs intermingled between the microsculptures. T1

–T2

with strong and

slightly shiny microsculpture, without evident PPs except on the sides of metasomal terga

- Clypeus convex in lower part with rough punctures. Process of labrum triangular . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena simontornyella adianta Warncke, 1974

18. Ts with typical microsculpture, coarse and strong with intermingled punctures (Fig. 1). A4

much shorter than A5

. Marginal

zones marked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

- Ts with smooth microsculpture, punctures can give rough look. A4

similar in length to A5

. . . . . . . . . . . . . . . . . . . . . . . . . . 20

19. Punctures large and dense on whole body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena spreta spreta Pérez, 1895

Slightly convex clypeus, with strong and dull microsculpture in the first generation; in the second generation it´s shiny in the

lower zone with PPs of the same size. Metasomal terga with strong microsculpture and shiny; PPs almost imperceptible except

on the sides of metasomal terga. Marginal zones marked and occupies between 0.3–0.4 times the length of the terga

- Punctures small and less dense on whole body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena spreta pusilla Pérez, 1903

20. Facial fovea large, surpassing lower edge of antennal socket by its diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

- Facial fovea slightly surpassing edge of antennal socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

21. Marginal zones with microsculpture weaker than on discs, also brighter . . . . . . . . . . . . . . . . . Andrena semilaevis Pérez, 1903

Facial fovea with the upper area 0.6 wider than the lower zone. Clypeus slightly convex and a little shiny; strong and dense

PPs; with an impunctate longitudinal line in the middle, E=1–3. Metasomal terga with weak microsculpture, more evident on

T1

and the base of T2

. T2

–T4

with evident PPs, especially on the discs, E=1–4. Marginal zones marked, wide that occupies

between 0.4–0.5 times the length of the terga

- Marginal zones with dull microsculpture as on discs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

22. Scutellum shiny, without punctures or microsculpture at bottom. Process of labrum almost square, base occupying less than 0.3

of lower margin of clypeus. Punctures in clypeus rough, especially in lower part . . . . . . Andrena minutuloides Perkins, 1914

Clypeus with a microsculpture weaker and smoother on the lower zone. Metasoma with PPs less evident than the scutum.T2

–T4

with a tenuous microsculpture and shiny on the apical fringe on the discs. Marginal zones marked weakly and shiny

- Scutellum, in its entirety, with microsculpture and dense punctures as in scutum. Process of labrum wider than long, base occu-

pying more than 0.3 of lower margin of clypeus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

23. Clypeus with rough punctures in lower part, size of punctures more than two times size of punctures in upper area . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena minutula minutula (Kirby, 1802)

Clypeus with a shiny microsculpture, PPs more or less dense, E=1–2. Marginal zones of T2

–T4

unmarked, with microsculpture

and impunctate, that occupies 0.5 times the length of the terga

- Clypeus with punctures defined, same size throughout range . . . . . . . . . . . . . . . . . . . . . . . Andrena minutula lenis Pérez, 1903

24. Clypeus shiny, without microsculpture in at least two-thirds of apical area. Marginal zones paler than discs. Propodeal triangle

with fine granular ornamentation, clearly delimited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena abjecta Pérez, 1895

Facial fovea is strongly depressed with the upper area 0.6 wider than the lower zone. Clypeus slightly arched with a bright cen-

ter, and with obvious PPs; upper area with delicate microsculpture and PPs up to the middle, which is large, coarse and without

defined edges, E=1–4. Metasomal terga with delicate and weak microsculpture, therefore shiny. Discs of terga, on the sides,

with some punctures which are small, isolated and without defined edges

- Clypeus with microsculpture in more than two-thirds of its area. Propodeal triangle with ribbed-roughened ornamentation at

base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

25. Facial fovea lower half narrowed, reaching amplitude of 0.3 times upper width. Clypeus apical margin bright. Scutum with

irregular punctures and non–uniform size, E=1–4. Integument of tergites with smooth appearance . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena tenuistriata Pérez, 1895

Long facial fovea, clearly exceeding the lower edge of the antennal socket; narrowed on the lower half. Convex clypeus and

slightly flattened on its center, with an absent microsculpture and shiny integument on the apical area. The top has shallow PPs

that becomes coarse toward the lower region, E=1–3. The metasomal terga have a fine smooth and shiny microsculpture, with

small, obvious PPs that are more evident on the sides

- Facial fovea narrowed in lower third, achieving amplitude of 0.5 times upper width. T sides, with integument of rough look.

Scutum with dense punctures of uniform size, E=1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena tiaretta Warncke, 1974

More or less convex clypeus with its central area flattened, with dull microsculpture, and dense PPs, E=0.5, but more scattered

on its central part, E=1–2; clypeus with an impunctate longitudinal line in the middle. Marginal zones lightly marked, espe-

cially in T2

, where it is difficult to differentiate them; wide and occupies 0.4 times the length of the terga


FIGURE 1. Microsculpture coarse and strong with intermingled punctures in Andrena spreta.

Males

1. First transverse cubital vein ending in less than three vein widths of pterostigma. Clypeus and metasomal terga with

microsculpture evident in most species. Body length: 5–6 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

- First transverse cubital vein ending in more than three vein widths of pterostigma. Clypeus and metasomal terga shiny and

clearly punctured . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2. Penis valve strongly broadened at base, almost 1.4 times wider than width of distal end of gonostylus . . . . . . . . . . . . . . . . . 3

- Penis valve narrowed at base, 1.4 times maximum width of distal end of gonostylus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. A3

almost twice as long as A4

. Marginal zone of T1

bright and slightly elevated . . . . . . . . . . . Andrena falsifica Perkins, 1915

Clypeus with microsculpture and evident PPs; with an impunctate longitudinal line in the middle. Scutum and scutellum with

slightly shiny microsculpture and little evident PPs. Basal area of propodeum with rugous ornamentation, defined and wide

propodeal triangle

- A3

as long as A4

or slightly longer. Marginal zone of T1

flat or depressed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4. Clypeus widely flattened at central portion, very small punctures. T1

lateral edges rounded. Robust gonostylus with apices

curved (Fig. 2A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena saxonica Stöckhert, 1935

A3

=A4.

Metasomal terga with microsculpture and evident PPs. Marginal zones strongly marked that occupies 0.3 times the

length of the terga

- Clypeus strongly convex, dense and coarse punctures. Gonostylus elongated . . . . . . . . . Andrena strohmella Stöckhert, 1928

Length of A3

almost as A4.

Process of labrum slightly bilobate, occupies at least 0.25 of the lower margin of the clypeus at its

base. Scutum with dull microsculpture, and shallow but evident PPs. Shiny marginal zones with PPs only on the apex

5. Gonostylus noticeably inside at distal portion. Gonocoxite dorsal lobe elongated (Fig. 2B). In antenna, A4

short, near 0.5 of A3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena simontornyella simontornyella Noskiewicz, 1939

Length of A3

is twice than A4

. Slightly convex clypeus with strong microsculpture that gives the appearence of wrinkled

integument; with more or less dense PPs, E=1–3. Metasoma slightly depressed

- Gonostylus not toward inside. Gonocoxite dorsal lobe not elongated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6


6. Scutum with rough and dull microsculptures. Scutum punctureless, or if punctures present, they are superficial and barely evi-

dent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

- Scutum with microsculpture, although evident, smooth appearance in central part, with punctures (in Andrena exigua some-

times coarse microsculpture, but by granular fine ornamentation appears goes to this couplet) . . . . . . . . . . . . . . . . . . . . . . . 12

7. Basal area of propodeum with propodeal triangle in at least 2/3 of area, showing rough-ribbed microsculpture . . . . . . . . . . . 8

- Basal area of propodeum with propodeal triangle in at least 2/3 of area, showing a fine granular microsculpture . . . . . . . . 10

8. Penis valve slightly widened at apex, gonostylus clearly elongated (Fig. 2C). Marginal zone of T with microsculpture stronger

than in disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena tiaretta Warncke, 1974

Length of A3

slightly larger than A5

. Clypeus with dull microsculpture without an impunctate longitudinal line in the middle.

Marginal zones marked

- Penis valve more or less wide at base. Marginal zone of T with microsculpture weaker, or as in disc . . . . . . . . . . . . . . . . . . . 9

9. Process of labrum wide, at base occupies at least 0.4 of lower margin of clypeus. Clypeus slightly convex . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena subopaca Nylander, 1848

Length of A4

=A5

, A3

is slightly larger than A4

and A5

. Clypeus more or less convex, sometimes the apical region is shiny, with

weak or absent microsculpture; without an impunctate longitudinal line in the middle. Metasoma with depressed apex

- Process of labrum occupies, at base, less than 0.3 of lower margin of clypeus. Distal area of clypeus slightly flattened. Mar-

ginal zone of T much brighter than discs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena icterina Warncke, 1974

Length of A3

=A5

. Convex clypeus, with a slightly flattened middle zone. T2

to T4

have slightly evident PPs, and the

microsculpture of the marginal zones is weaker than the one the discs, reaching about 0.3 times the length of the terga

10. Scutum and scutellum with microsculpture over entire surface, PP not evident. Metasoma impunctate, with shiny microsculp-

ture and smooth surface. Marginal zone of T weakly marked . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena abjecta Pérez, 1895

A3

is longer than A5

and nearly twice as long as A4

. Clypeus with a smooth apical half and strong and scattered PPs, E=1–4, and

the basal half is dull with a microsculpture. Metasoma with a fine and tenuous microsculpture

- Scutellum with microsculpture smoother in upper area than in scutum, with PP obvious. Metasoma with PP evident, but not

strong. Marginal zone of T clearly marked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

11. Scutum and scutellum with irregular and clearly marked PP. Basal region of discs with microsculpture much stronger than in

marginal zone of T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena exigua Erichson, 1835

A3

and A4

with the same length and slightly shorter than A5

. Clypeus usually with a microsculpture with evident and dense PPs

in the middle, with a smooth longitudinal line, E=0.5–2. Metasoma is lanceolate with dull microsculpture

- Scutum without evident PP, but obvious in anterior part of scutellum. Marginal zone of T with microsculpture as in discs . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena tenuistriata Pérez, 1895

Length of A3

=A5

but A3

<A4

+A5

. Convex clypeus, not flattened in the center, a lightly shinier on the lower zone; with evident

and scarce PPs, E=1–2.5. Shiny metasoma

12. Marginal zone of T with rough microsculpture more evident at bottom of discs. Marginal zone strongly marked with ring shape

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

- Marginal zone of T with smooth microsculpture, exhibit same brightness as discs, or much weaker . . . . . . . . . . . . . . . . . . 16

13. A3

is 1.6 times longer than A4

. Penis valve elongated and reaches apex of gonostylus, in lateral view looks wide (Fig. 2D) . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

- A3

and A4

short. Penis valve does not reach apex of gonostylus (Fig. 2E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

14. T1

with weak microsculpture, evident PP of same size as following T . . . . . . . . . . . . . . Andrena niveata niveata Friese, 1887

Length of A3

is almost 1.6 times of A4

. Convex and shiny clypeus; with dense PPs, E=1. Punctate metasomal terga with weak

and shiny microsculpture

- T1

with weaker microsculpture, PP shallow, less dense and smaller than in other Ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena niveata lecana Warncke, 1975


15. Scutum and scutellum entirely dull. Disc of T with same brightness as marginal zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena spreta spreta Pérez, 1895

A3

and A4

are short. Clypeus with microsculpture; in some specimens the integument is smooth on its apical zone. Metasoma

more or less lanceolate. Marginal zone strongly marked and bulky and occupies less than 0.3 times the length of the terga

- Central part of scutum and upper zone of scutellum shiny with weak microsculpture. Disc of T brighter than marginal zones

(may not be as contrasting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena spreta pusilla Pérez, 1903

Very shiny clypeus; the base and sides have a microsculpture and evident PPs. Process of labrum almost quadratic. Metasoma

lanceolate with strong microsculpture and less evident PPs

16. Area bounded by apical margin of compound eye, lateral ocellus and top edge of occiput without microsculpture and very

shiny, also absent in genal area. Scutum and scutellum shiny and without microsculpture, if microsculpture then very weak . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena bayona Warncke, 1975

Clypeus with weaker microsculpture from the middle toward the apical zone; dense PPs with an impunctate longitudinal line

in the middle. Not defined propodeal triangle. T1

with shallow PPs, less dense than on the rest of terga

- Area bounded by apical margin of compound eye, lateral ocellus and top edge of occiput with microsculpture, as in genal area,

generally dull and with coarse PP. Scutum with evident microsculpture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

17. T1

without microsculpture (or seemingly), very bright with scarce and tiny PP, about 0.25 size of puncture of scutum. Antenna

after A6

orange in color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena nanula Nylander, 1848

It has not yet been reported in the Iberian Peninsula, but its presence is possible


- T1

with microsculpture, not very shiny, PP not as evident, but when seen are same size as in scutum. Antenna generally brown

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

18. T1

with recognizable PP, may be masked by microsculpture. PP of same size as in scutum . . . . . . . . . . . . . . . . . . . . . . . . . . 19

- T1

without PP, if present are clearly smaller than in scutum, intermingled with microsculpture . . . . . . . . . . . . . . . . . . . . . . 22

19. Penis valve widened at base (Fig. 2F). Marginal zones impunctate. Metasoma wider than mesosoma . . . . . . . . . . . . . . . . . 20

- Penis valve not widened at base (Fig. 2G). Marginal zones with PP in upper part, at least on T1

and T2

. Metasoma of same

width as mesosoma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

20. Clypeus not flattened at middle. Scutum with uniform microsculpture . . . . . . . . Andrena alfkenella alfkenella Perkins, 1914

A3

<A4

+A5

. Clypeus may have a microsculpture; with regular and dense PPs, E=1 or less. Metasoma shiny. T1

with microsculp-

ture and evident PPs. Discs of T2

–T4

with a microsculpture and abundant PPs, E=1

- Clypeus more or less convex. Scutum with weak and shiny microsculpture . . . . . . Andrena alfkenella sunna Warncke, 1975


21. Metasomal terga with PP recognizable. Metasomal bands of hairs loose and discontinued . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena minutula minutula (Kirby, 1802)

Length of A3

=A5

. Clypeus convex, with microsculpture only evident on the upper area; the rest its shiny and smooth. Marginal

zones occupies 0.3 times the length of the terga and with evident PPs; with a weaker microsculpture than in the discs

- Metasomal terga with delicate microsculpture and PP hardly perceptible. Metasomal bands of hairs developed and dense . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena minutula lenis Pérez, 1903

Scutum with rougher and stronger microsculpture than in A. minutula minutula. Shiny metasoma with a weaker microsculpture

similar to nominal species; with imperceptible and scarce PPs, more evident on the sides of discs

22. Penis valve with base strongly widened (Fig. 2H). Marginal zones of terga with microsculpture as in discs . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Andrena minutuloides Perkins, 1914

Length of A1

<A3

+A4

+A5

; A3

=A5

. More or less convex clypeus, with a slightly shiny and evident microsculpture on the upper

area, while on the lower area it seems to be absent; without obvious PPs. T1

with a dull microsculpture and shallow PPs, E=1–3

- Penis valve not strongly widened (Fig. 2I). Marginal zones of terga with microsculpture clearly weaker than that in basal zone

of discs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Andrena semilaevis Pérez, 1903

Length of A3

=A4

. Clypeus with dense PPs, E=0.5–2; in some individuals with a smooth integument and scarce punctures,

E=1–3. Discs of metasomal terga have a dull integument and slightly rugous appearance. Marginal zones strongly marked

23. A3

almost 1.4 times length of A4

.Wing veins smoky with dark color. Penis valve not widened . . . Andrena nana (Kirby, 1802)

Clypeus with or without fine rugous ornamentation; shiny and evident PPs. Metasomal terga with strong PPs and microsculp-

ture that seems to be weak or appears to be absent

- A3

length equal to that of A4

.Wing veins reddish-brown. Penis valve widened at base . . . Andrena floricola Eversmann, 1852

A1

=A3

+A4

+A5

. Clypeus with weak microsculpture; a middle area with big and dense PPs, E=1–2. Shiny metasomal terga with

abundant and evident PP

Andrena (Micrandrena) Ashmead, 1899

Andrena (Micrandrena) Ashmead 1899:89

TYPE SPECIES: Micrandrena pacifica Ashmead, 1899 = Andrena melanochroa Cockerell, 1898, by original designation.

Andrena (Andrenella) Hedicke 1933:210

TYPE SPECIES: Melitta minutula Kirby, 1802, by original designation.

Diagnosis. The Andrena (Micrandrena) are small bees (4.5–10 mm) with black or dark brown integument. The

propodeal corbicula is incomplete, and the basal area of propodeum has a rugulose surface that sometimes appears

to be finely granular. The metasomal terga have distinct PPs between the microsculptures (in some species are

shiny with a stronger PP). Additionally, the process of labrum is complete, although it is clearly bilobate in the

female of one species, and weakly bilobate in the males of several species; however, an incomplete propodeal

corbicula identifies them.

Andrena (Micrandrena) abjecta Pérez, 1895

Andrena abjecta Pérez 1895:45 (Lectotype examined)

Diagnosis. Andrena abjecta is characterized by a body with shiny, fine and weak integument. The scutum and

scutellum have shallow and sparse PPs. The propodeal triangle is clearly defined, with different ornamentation on

each side, and the propodeum has a matte appearance that contrasts with the brightness of the metasoma. The

surface of the terga has a fine and tenuous microsculpture with shallow PBHs. The marginal zones are 0.4 times the

length of the terga.


FIGURE 2. Male genital capsule, dorsal view of: (A) Andrena saxonica; (B) Andrena simontornyella simontornyella; (C)

Andrena tiaretta; (D) Andrena niveata; (E) Andrena spreta spreta; (F) Andrena alfkenella alfkenella; (G) Andrena minutula

minutula; (H) Andrena minutuloides; (I) Andrena semilaevis. A, B, D, E, F, G, H & I reproduced from Schmid-Egger &

Scheuchl (1997). C by N. Escobedo.


Redescription based on lectotype. Female: Body length 6–8 mm. The body has dark brown integument with

a reddish metasoma. The pubescence is sparse and usually whitish.

Head: The genal area has a weak wrinkled microsculpture on the upper area, with weak striations towards the

bottom. The PBH is obvious but weak, and oblique over the entire surface. The frons and paraocular area are matte

and ornamented with large grooves or stretch marks, and the PPs are obvious at the bottom of the paraocular area.

The facial fovea is strongly depressed by about 0.6 of its lower length (3 times narrower than high), with a golden

and iridescent, velvety pubescence. The flagellum increases towards the apex, with a darker base. A1=0.3 of the

length of the flagellum, A2=A

3, and A

3=A

4+A

5. The clypeus is arched, with a bright center and obvious PPs. The

top of the clypeus has a fine microsculpture and PPs until the middle, which is large, coarse and without defined

edges. E=1–4, with PPs evident on the lower portion, although they are not deep. The entire clypeus has slender

plumose hairs that are yellow and iridescent, although not longer than the length of A1. The process of labrum is

small, black, and just under 0.3 of the lower margin of the clypeus at the base, it is also surrounded by long hair

(longer than the length of the process of labrum). The pubescence is not dense, and is generally whitish, iridescent

and shorter than the length of A1.

Mesosoma: The entire pronotum is impunctate with a microsculpture. The scutum and scutellum also have a

delicate microsculpture over the entire surface, which is shiny, with isolated, shallow, and irregular PPs. The

mesepisternum has a bright microsculpture with slightly elevated PPs, and a scarce, long, and white pubescence.

The metanotum is similar, with a fine and dense microsculpture without evident PPs, and has large yellow hairs as

on the sides of the scutellum and scutum (in the latter they are all over the surface). The basal area of propodeum is

located in the middle with fine granular ornamentation that is coarser along the sides. The propodeal triangle is

defined. The propodeal corbicula is whitish and paler than the rest of the hairs on the thorax. The wings are weakly

smoked, and at rest reach the apex of the metasoma. The veins and stigma are slightly pale yellow; however,

Gusenleitner and Schwarz (2002) indicate that they are brown. The hind legs are brown, including the basitarsus,

mediotarsus, distitarsus, and tarsal claw.

Metasoma: The metasomal terga are bright with a delicate and weak microsculpture. On the sides of the discs

of the terga there are a few slender PPs that are small and isolated, with smooth edges. The PBHs are shallow and

are present starting at T3, although they are most abundant in T

4 and T

5, additionally, the latter ones have yellow

hair, at least on the inferior part. The sides of the pygidial plate also have yellow hair. The discs of the terga are

dark brown, with some short, slender, iridescent hair, which is abundant in T4. There are also scarce and plumose

hairs present on the top of the marginal zone, although they are larger and do not form a complete band. The

marginal zones are amber in color, evident in T2, irregular, and weakly marked, especially in the middle. They

occupy 0.4 times the length of the terga. Metasomal bands of whitish hair are present from T2, where they are short

and scarce, however they are longer in T3. The integument of the metasomal terga is brownish-red, and paler than

the mesosoma and head, although brighter than the former.

Male: (This description corresponds to specimens from Morocco, as we were unable to locate specimens

captured in the Iberian Peninsula). Body length 6 mm. The integument is black with a brown metasoma. The males

are generally similar in morphology to the females.

Head: The genal area has short and striate ornamentation that is present on the top. The area bounded by the

apical margin of compound eye has a lateral ocellus and top edge of the occiput with a fine, granular and matte

microsculpture. A3 is clearly longer than A

5, and nearly twice as long as A

4, while the following As are longer than

wide. The clypeus is as in the female, with a smooth apical half and strong and scattered PPs. E=1–4, and the basal

half is matte with a microsculpture. The process of labrum occupies at least 0.3 of the lower margin of the clypeus

at its base. The head has a fine and short pubescence, except on the vertex and in the lower portion of the genal

area, where the hair is long and reaches the length of A1. The color is yellowish-white, except in the paraocular area

and vertex, where it is brown.

Mesosoma: The scutum and scutellum are completely matte, without PPs, although in the latter it is more

obvious. The mesepisternum has small, non-bulky PBHs, with E=3 or more; however, the pubescence is scarce and

longer than the length of A1. The metanotum has a microsculpture that is a little coarser than that in the scutum and

scutellum. The basal area of propodeum is as in the female. The rest of the propodeum also has a fine granular

microsculpture and small PBHs with plumose hairs. The wings are weakly smoked with a yellowish tone, and at

rest they do not reach the apex of the metasoma. The veins are orangish-brown. The legs are brown, and the


mediotarsus, distitarsus, and tarsal claw are paler. The pubescence of the hind legs is whitish, but the inner side of

the basitarsus is yellow.

Metasoma: The metasoma is as in the female, with a fine and tenuous microsculpture. The discs of the terga

have small and weak PBHs with thin hairs. T2 and T

4 have incomplete metasomal bands that are sparse. The male

genitalia are simple, as in Andrena minutula (Kirby, 1802).

Comments. Individuals of this species can be confused with others belonging to the subgenus Andrena

(Distandrena) Warncke, 1968; however, by their morphological characteristics, Andrena abjecta should remain in

the subgenus Andrena (Micrandrena). These characteristics are, in the case of females, a process of labrum with a

rectangular shape, not triangular as in the species of Andrena (Distandrena). Also, the clypeus is convex, vertical

and elongated, without striations, and the propodeal corbicula is incomplete and scarce. In the case of the male, the

genitalia of this species are morphologically similar to Andrena minutula (Kirby, 1802).

Specimens examined. Lectotype:Algeria: Constantina, 1 ♀, undated, Wildbienen cataster 061024 scwe479,

MPARIS EY0000002007. Paralectotype:Algeria: Orán, 1 ♀, undated, OLINZ. Other material:Iberian Peninsula:

Spain: Huelva: Niebla, 1 ♀, 22-IV-1987, Torres, F. leg., MJ. Dardón 2009, det., USAL. Zaragoza: Pina de Ebro, 1

♀, 09-III-1991, Blasco, J. leg., MJ. Dardón 2009, det., USAL. Other localities:Algeria: Constantina: 1 ♀,

undated, J. Pérez det., MPARIS. Morocco: Moulay Idriss, 1 ♂, 26-III-1923, Schulthess leg?, OLINZ; Meknès-

Tafilalet: El Hajeb, 1 ♂, 29-III-1923, Schulthess leg?, OLINZ; Tiznit, Assaka, 1 ♀, 13-III-1974, Guichard, K. &

Else, G., leg., OLINZ.

Andrena (Micrandrena) alfkenella alfkenella Perkins, 1914

Andrena alfkenella Perkins 1914:112

Andrena moricella Perkins 1914:113 (partim) ♂, nec ♀

Andrena pillichi Noskiewicz 1939:241

Diagnosis. Individuals of this species are characterized by a tesselate metasoma, with dense and small PPs and an

intermingled microsculpture (more evident in females, starting in T2). In females, T

1 has an evident microsculpture

and isolated PPs. The marginal zones are weakly marked, especially at the middle, where there is no evident

transition between the marginal zone and the disc.

Specimens examined. Iberian Peninsula: Spain: Asturias: Covadonga, 3 ♀, undated, Dusmet, J. leg.,

MNCNM. Navarra: Burguete, 1 ♀, 27-VIII-1933, Dusmet, J. leg., MNCNM. Pontevedra: Pontevedra, 1 ♀, 01-

VII-1922, Dusmet, J. leg., MNCNM. Soria: Aldehuela de Calatañazor, 1 ♂, 02-VIII-1989, García, J. leg., MJ.

Dardón det., UCM. Teruel: Sierra de Albarracín, 1 ♂, 03–06-VIII-1980, Schachlt, W. leg. OLINZ. Portugal:

Guarda: Pinzio, 1 ♀, 03-VII-1963, OLINZ. Coimbra: Pinhal de Marrocos, 1 ♀, 10-IV-1968 / 1 ♀, 21-IV-1968 / 1

♂, 31-III-1968 / 1 ♂, 28-V-1968; Diniz, M.A. leg., OLINZ. Viana do Castelo: Ponte de Lima, 1 ♀, 16-V-1968,

Diniz, M.A. leg., OLINZ. Other localities: Germany: Abensberg: Bay, 1 ♀, 12-V-1938 / 2 ♂ 06-V-1938,

Stöckhert leg., OLINZ. Budapest: 1 ♀, 19-VI-1927, Stöckhert leg., OLINZ. France: Bonifacio, 1 ♀, 27 al 28-V-

1933 / 2 ♂, 31-V al 02-VI-1933, Beaumont leg., OLINZ. Greece: Larisa, 1 ♀, 20-IV-1962, Warncke, K. leg.,

OLINZ. Macedonia: Struga, 1 ♂, 01-VII-1965, Kgm. leg., MBERLIN. Turkey: Adana, 1 ♀, 06-IV-1971,

Warncke, K. leg., OLINZ; Akra, 1 ♂, 21-V-1972, Warncke, K. leg., OLINZ.

Andrena (Micrandrena) alfkenella sunna Warncke, 1975

Andrena alfkenella sunna Warncke 1975:296 (Holotype examined)

Description. Females of this species are recognizable by the morphology of the clypeus, which has a flattened

middle zone which is larger than in A. alfkenella alfkenella. The basal portion has a strong and dull microsculpture,

while the apical segment is weak, generally shiny, and has evident PPs. The thorax has less dense and weaker PPs,

with scarcer PPs in the front portion than in the posterior. Males have a clypeus like that of the female, although it

is slightly flattened. The scutum has a weaker and shinier microsculpture than that of the male A. alfkenella

alfkenella.


Specimens examined. Holotype:Spain: Madrid: Aranjuez, 1 ♀, 04-VI-1913, Dusmet, J. leg., OLINZ.

Paratype: Spain: Alicante: Elche, 1 ♀, undated, Dusmet, J. leg., OLINZ. Cuenca: 1 ♂, 00-VII-1906, Arias leg.,

OLINZ. Granada: Puebla de Fadrique, 1 ♀, 1900, Escalera leg., OLINZ; Sierra Nevada, 1 ♀, VI-1926, Dusmet, J.

leg., OLINZ. Madrid: Aranjuez, 3 ♂, 04-VI-1913 / 2 ♂, 26-V-1912 / 2 ♂, 04-VI-1913, Dusmet, J. leg., OLINZ;

Madrid, 1 ♂, 06-VI-1912, Mercet, Ga. leg., OLINZ; Vaciamadrid, 1 ♀, 25-IV-1919, Dusmet, J. leg., OLINZ;

Villaverde, 1 ♀, 06-VI-1909 / 1 ♀, 18-IV-1909 / 1 ♀, 10-IV-1907 / 1 ♀, 26-III-1912 Dusmet, J. leg., OLINZ.

Toledo: Seseña, 1 ♀, 10-V-1916, Dusmet, J. leg., OLINZ. Valladolid: Jaramiel, 1 ♀, 06-VII-1910, Dusmet, J. leg.,

OLINZ. Other material:Iberian Peninsula: Spain: Jaén: Sierra del Pozo, 1 ♀, Kafka, M. leg., 12-VI-2003, MJ.

Dardón det., OLINZ. Madrid: Aranjuez, 1 ♀, undated, Mercet, Ga. leg., MNCNM; Aranjuez, 1 ♀, 30-V-1910,

Dusmet, J. leg., MNCNM; Madrid, 1 ♂, 10-IV-1904, Dusmet, J. leg., OLINZ; Villaverde, 1 ♀, undated, Mercet,

Ga. leg.; Villaverde, 1 ♀, undated, Arias leg., MNCNM. Valladolid: Zamadueñas, 1 ♀, 08-IV-1982, Asensio, E.

leg., USAL.

Andrena (Micrandrena) bayona Warncke, 1975

Andrena bayona Warncke 1975:296 (Holotype examined)

Diagnosis. Individuals of this species are characterized by the area bounded by the apical margin of the compound

eye. The lateral ocellus and top edge of the occiput are without a microsculpture, and are therefore very shiny, with

scarce and deep PPs of E=1 or less. The scutellum has scarcer PPs than the scutum, and the integument of the

scutum is smooth in the apical zone, while both are glabrous. The male genitalia are morphologically similar to

those in the Andrena minutuloides Perkins, 1914, with the penis valve being widened at the base. A good

description of this species was given by Warncke (1975), and for this reason is presented in this work only a

diagnosis.

Specimens examined. Holotype:Spain: Segovia: Madrona, 1 ♀, 30-VII-1968, Warncke, K. leg., OLINZ.

Paratype:Spain: Ávila: Navalperal, 1 ♂, undated, Escalera leg., OLINZ. Cáceres: Baños de Montemayor, 2 ♀, V-

1943, Dusmet, J. leg., OLINZ; Hervás, VI-1907, 1 ♀, Dusmet, J. leg., OLINZ. Madrid: Escorial, 1 ♀, 20-VI-1904,

Dusmet, J. leg., OLINZ; 1 ♀, VIII-1894, undated leg., OLINZ; 1 ♀, 10-VI-2004, Dusmet, J. leg., OLINZ; 2 ♀, 17-

VI-1915, Dusmet, J. leg., OLINZ; 1 ♀, 20-VI-1904, Dusmet, J. leg., OLINZ; 1 ♂, 09-VIII-2003, Dusmet, J. leg.,

OLINZ; Sierra de Guadarrama, 1 ♀, 25-VI-1916 / 1 ♀, 04-VII-1915 / 1 ♂, 06-VIII-1912, Dusmet, J. leg., OLINZ.

Peleai? 1 ♀, 17-VI-1930, Dusmet, J. leg., OLINZ. Portugal: Viseu: Rezende, 1 ♀, 31-VIII-1917, Andrade, NFd´.

leg., OLINZ. Other material:Iberian Peninsula: Spain: Albacete: La Herrera, 1 ♀, 03-IX-1978, P-Iñigo, C. leg.,

MJ. Dardón det., UCM. Ávila: Ávila, Aldeavieja. 1 ♀, undated, Dusmet, J. leg., MNCNM; El Sauco, Las Navas, 1

♀, 09-VI-1979, P-Iñigo, C. leg., MJ. Dardón det., UCM; Navalperal, 1 ♀, undated, Escalera leg., MNCNM; Santa

Lucía de la Señora, 2 ♀, 27-IX-1977, Gayubo, S. leg., MJ. Dardón det., USAL. Cáceres: Baños de Montemayor, 1

♀, 01-V-1943, Dusmet, J. leg., DUSMET, MNCNM; 3 ♀, undated, Dusmet, J. leg., MNCNM. Madrid: Escorial, 1

♀, 11-VI-1921 / 1 ♀, 14-VI-1922 / 1 ♀, 24-VI-1941 / 1 ♀, 25-VI-1941, 2 ♀, undated, Dusmet, J. leg., MNCNM; 1

♀, undated, Mercet, G. leg., MNCNM; 1 ♀, undated, MNCNM; Madrid, 1 ♀, undated, Mercet, G. leg., MNCNM;

Navalquejigo, 2 ♀, 10-VI-1962, P-Iñigo, C. leg., MJ. Dardón det., UCM; Sierra de Guadarrama, 1 ♂, 06-VIII-1912

/ 1 ♀, 23-VI-1932 / 2 ♀, undated, Dusmet, J. leg., MNCNM. Pontevedra: Villagarcía de Arosa, 1 ♀, 01-VIII-1962,

Saavedra, J.L. leg., MJ. Dardón det., UCM. Salamanca: Béjar: Ca. Cantagallo, 1 ♀,14-VIII-1977, Gayubo, S. leg.,

MJ. Dardón det., USAL; Ca. Ciudad Rodrigo, 1 ♀, 01-VII-1977, Gayubo, S. leg., MJ. Dardón det., USAL;

Salamanca, 1 ♀, Dusmet, J. leg., MNCNM. Segovia: Segovia, La Granja, 2 ♀, undated, Peris, T. leg., MJ. Dardón

det., UCM; Prádena, Sabinar, 3 ♀, 22-VIII-1979, P-Iñigo, C. leg., MJ. Dardón det., UCM. Soria: Almajano, 1 ♀,

25-VIII-1989, García, J. leg., MJ. Dardón det., USAL.

Andrena (Micrandrena) exigua Erichson, 1835

Andrena exigua Erichson 1835:105 (Holotype examined)

Diagnosis. Individuals of this species are characterized by metasomal terga with evident PPs, and their BAPs have


rough ornamentation over the entire surface. The clypeus, at least in females, has integument without

ornamentation in the apical half, and although it is sometimes weak, it is always very shiny.

Redescription based on holotype. Female: Body length 6–7 mm. The body has dark brown integument, and

the pubescence is usually whitish.

Head: The genal area has a shiny microsculpture without evident PPs, the pubescence is dense, whitish, and

short, and the length is 0.5 that of the A1. The frons is striated, with rough ornamentation as in the supraclypeal and

paraocular area, with the integument of the latter being smooth with PPs over the lower part. The area bounded by

the apical margin of the compound eye, the lateral ocellus, and the top edge of the occiput have an evident, matte

microsculpture. The facial fovea is large, extends beyond the lower edge of the antennal socket, and is covered with

a velvety pubescence that is white or sometimes yellow. The width of the upper end is higher. The antennal basal

part is darker than the apical region, and the A3 length is slightly less than A

4 and A

5 together. The clypeus is

slightly arched, with microsculpture that is stronger in the basal area, which is normally smooth. In some

specimens the microsculpture is weak, but it is always shiny, with scarce PPs which are greater in number in the

distant apical part, E=3–4. The process of labrum is black and occupies, at its base, almost 0.3 of the lower margin

of the clypeus. It is surrounded by slender yellow hair.

Mesosoma: The pronotum has a microsculpture with faint PPs. The scutum also has a microsculpture from the

middle area, towards the posterior zone, although it is weaker and very shiny. The PPs are not deep, but they are

evident, and are denser in the posterior region, E=1–3. The scutellum is almost entirely covered in a microsculpture

that is very subtle and more lustrous than in the scutum; however, the PPs are similar to those in the scutum. The

mesepisternum has a strong microsculpture, the PBHs are weakly bulky, E=2–4, and the hairs are brownish-white,

reaching the length of A1 at the inferior region. The metanotum has a coarse microsculpture and the PPs are not

evident. The basal area of propodeum has rough ornamentation, with no defined propodeal triangle. The propodeal

corbicula is whitish-gray, dense, long, and plumose. The rest of the propodeum has a microsculpture, scarce hair,

and no PPs. The wings are smoky and at rest are beyond the apex of the metasoma. The veins are yellow and the

pterostigma yellowish-brown. The hind legs are dark; however, the basitarsus, mediotarsus, distitarsus, and tarsal

claw are a hue paler. The tibia has a whitish-yellow pubescence and some darker hair in basal region, while the

pubescence on the sides of the scutum, scutellum, and metanotum are large and brownish-gray.

Metasoma: The metasoma is regular, with shallow and smaller PPs than in the scutum. The discs of T1 have a

weak microsculpture with evident marginal zones, and the PPs are obvious on the discs and marginal zones,

E=2–3. T2 to T

4 have a stronger microsculpture and more abundant PPs than T

1, E=1–2. The marginal zones are

broad, and are usually marked and occupy about 0.4 times the length of the terga. The metasomal bands are whitish

and interrupted, and are present at up to 0.6 the width of each terga. T5 has a whitish-yellow pubescence, and the

metasoma has reddish integument which is patent, especially towards the marginal zones. This is in contrast to the

dark brown of the scutum or head.

Male: Body length 5–7 mm. The integument is brown with a reddish metasoma and legs. The pubescence is

whitish-gray.

Head: The genal area has finely roughened ornamentation, and the pubescence is shorter than the length of A1,

except at the upper edge of the compound eye where the hairs are longer. The vertex and frons are wrinkled, and

the paraocular area is shiny with evident and oblique PPs. The area bounded by the apical margin of the compound

eye, the lateral ocellus, and the top edge of the occiput have a strong and dull microsculpture that is parallel to the

compound eye, which is weaker and brighter. The A1 to A

3 are darker in color than the rest, and A

3 and A

4 are

quadratic, with the same length, and are slightly shorter than A5. The clypeus could show a microsculpture (totally

absent in the type of this species) and evident and dense PPs in the middle, with a smooth longitudinal line,

E=0.5–2. It is covered with whitish-gray hairs that have a white hue in the distal border. The process of labrum is

brown and surrounded by orange hairs, with a wider base than apex, and occupies (at its base) 0.3 of the lower

margin of the clypeus. The head has a whitish-gray pubescence that is white in the genal area.

Mesosoma: The pronotum has a dull microsculpture. The scutum and scutellum have an opaque

microsculpture, except in the middle where it appears weaker and shiny. In some specimens the whole scutellum is

highly polished; however, in both, irregular PPs are present, E=0.5–3 to 5. The mesepisternum has an opaque

microsculpture with abundant, bulky PPs, especially along the front, E=0.5–1, and a portion has a whitish-gray

pubescence with hairs longer than the length of A1. The metanotum has a coarse and dull microsculpture. In the


middle, the basal area of propodeum has thick and short folds at its base, while the apical portion is finer. The

ornamentation on the sides is rough, and therefore, the propodeal triangle is defined. The wings are hyaline, and at

rest do not reach the apex of the metasoma. The veins and stigma are of a yellow-white hue. The hind legs,

including the basitarsus, mediotarsus, distitarsus, and tarsal claw, are orange in color, while the pubescence is

whitish and also located inside of the basitarsus. The mesosoma has a pubescence of a conspicuous whitish-gray,

and hairs are present on the sides of the scutellum and metanotum, however, they are more abundant than on the

scutum.

Metasoma: The metasoma is lanceolate. T1 has a dull microsculpture and small, non-patent PPs, E=0.5–3. The

marginal zones are weakly marked on the sides. T2 to T

4 also have a dull microsculpture, that is weaker and shinier

on the dorsolateral convexity, where the PPs are slightly evident and abundant, E=1–2. The marginal zones have

obvious PPs, occupying, at most, 0.3 times the length of the terga. The metasomal bands are whitish, narrow, and

widely interrupted in T2 and T

3, while in T

4 they are only hinted at. The male genitalia have a simple constitution,

similar to that of Andrena minutula (Kirby, 1802).

Specimens examined. Holotype:Spain: Andalucía, 1 ♀, undated. No. 2489, 13/3.MBERLIN (as shown on

the label). Other material: Iberian Peninsula: Spain: Alicante: 1 ♂, undated, Dusmet, J. leg., OLINZ. Almería:

Las Negras, 50 Km E., 3 ♂, 27-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra Alhamilla, Lucainena, 7

♂, 25-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Castellón: 1 ♂, 18-IV-1921, Dusmet, J. leg., OLINZ.

Ciudad Real: Pozuelo de Calatrava, 4 ♀, undated, La Fuente leg., MNCNM. Jaén: Sierra del Pozo, Puertollano, 1

♀, 12-VI-2003, Kalfka, M. leg., MJ. Dardón det., OLINZ. Madrid: Aranjuez, 1 ♀, 01-IV-1926, Lindberg leg.,

OLINZ; Vicálvaro, 1 ♀, 02-IV-1926, Lindberg leg., OLINZ;Villaverde, 2 ♀, 26-III-1912 / 1 ♀, 25-III-1907 / 2 ♀,

10-IV-1907 / 1 ♀, 31-III-1908, Dusmet, J. leg., OLINZ; Villaverde, 2 ♀, undated, MNCNM. Málaga: Yunquera,

40 Km W, 1 ♂, 20-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Murcia: Sierra de Españula, 20 Km. SW, 2

♂, 11-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Valladolid: Zamadueñas, 1 ♀, 03-V-1979, Asensio, E.

leg., USAL; 1 ♀, 03-V-1979, Asensio, E. leg., OLINZ. Zaragoza: Pina de Ebro, 10 Km E, 1 ♂, 18-V-1992, Osten,

T. leg., OLINZ.

Andrena (Micrandrena) falsifica Perkins, 1915

Andrena moricella Perkins 1914:113 (partim)

Andrena falsifica Perkins 1915:215 nomen novum for A. moricella Perkins ♀, nec ♂

Diagnosis. Individuals of this species are characterized by the clearly bulky zone in the distal portion of T1. This

feature is less evident in males, but they are discriminated by a widened penis valve.

Comment. In the Iberian Peninsula this is an undoubtedly rare species, with only one individual located in the

course of this work.

Specimens examined. Iberian Peninsula:Spain: Ávila: El Sauco, Las Navas, 1 ♀, 09-VI-1979, C. P-Iñigo

leg., MJ. Dardón det., UCM in Ranunculus sp. [Ranunculaceae]. Other localities:Germany: Bavaria: Abensberg,

1 ♀, 14-V-1928, Stöckhert leg., OLINZ. Dachau, 1 ♂, 18-IV-1964 / 3 ♂, 30-IV-1980, / 1 ♀, 14-V-1980, Warncke,

K. leg., OLINZ; Erlangen, 1 ♀, 11-V-1917 / 1 ♀, 05-VI-1930 / 1 ♂, 03-V-1928, / 1 ♂, 25-IV-1928, Stöckhert leg.,

OLINZ; Hilpolistein, 3 ♀, 20-IV-1967, Warncke, K. leg., OLINZ; Pappenheim, 1 ♀, 24-V-1933, Stöckhert leg.,

OLINZ; Starnberg, 1 ♂, 21-V-1925 / 1 ♂, 19-IX-1925 / 1 ♀, 29-V-1924, Stöckhert leg., OLINZ. Berlin: Spandau,

1 ♂, 20-IV-1915, Müller, M. leg., OLINZ. Sachsen-Anhalt: Saaletal, Schellsitz?, 1 ♂, 19-IV-1948, Blüthgen leg.,

MBERLIN, in Verna sp.?; 1 ♀, 29-IV-1946, Blüthgen leg. Blüthgen det., MBERLIN, in Verna sp?.; Thaldorf Bay.,

1 ♀, 20-V-1937, Stöckhert leg., OLINZ. Austria: Lower Austria: Marchegg, 1 ♀, 25-IV-1961, Warncke, K. leg.,

OLINZ; Hundsheim, Altenburg, 1 ♂, 25-III-1943 / 1 ♂, 31-III-1943, Schmidt leg., OLINZ; Bromberg, 2 ♂, 14-IV-

1918 / 1 ♀, 06-VI-1923, Meyer leg., OLINZ. Salzburg: Edim, 1 ♀, 25-III-1959, Babig leg., Gründwalt, W. det.,

OLINZ in Potentilla sp. [Rosaceae] Budapest: 1 ♀, 21-V-1922, Enslin leg., OLINZ. Greece: Voros, Kaimaktsalan,

NW Edesa, 2 ♂, 04-VI-1976, Sischka leg., OLINZ. Czech Republic: Bohemian: Èeské Budìjovice, 1 ♂, 18-V-

1939, Bata, L. leg., Stöckhert det., OLINZ. Brno: 1 ♂, 21-VI-1942, Ŝnoflak leg., Stöckhert det., OLINZ. Moravia:

1 ♀, 03-VI-1942, Zavadil leg., OLINZ.


Andrena (Micrandrena) floricola Eversmann, 1852

Andrena floricola Eversmann 1852:22

Andrena punctulata Schenck 1853:133

Andrena ochropyga Alfken 1916:70

Diagnosis. The female of this species is characterized by an facial fovea that is the same width in the upper and

lower areas. It is also identified by the discs of T1 and T

2, which have a shiny integument, and dense and evident

PPs. The metasoma of the male has abundant and evident PPs, and genitalia with obviously broad penis valves.

Specimens examined. Iberian Peninsula:Spain: Barcelona: 1 ♂, undated, MPARIS. Zamora: Fornillos de

Aliste, 1 ♂, 02-VIII-1987, Heras, C. leg., MJ. Dardón det., USAL. Other localities: Germany: Bavaria: Abbach

a.D., 2 ♂, IV-1943, Fritz, L., leg., OLINZ. Abensberg Bay., 2 ♀, 14-V-1938 / 1 ♀, 07-VI-1938 / 1 ♂, 24-VII-1938

/ 1 ♂, 12-VIII-1941, Stöckhert leg., OLINZ; Eichstätt, 1 ♀, 02-VI-1935, Stöckhert leg., OLINZ; Erlangen, 1 ♀, 07-

VI-1938, Stöckhert leg., OLINZ; Pappenheim, 1 ♀, 14-VIII-1932, Stöckhert leg., OLINZ. Cologne: Einig, 1 ♂,

04-VII-1939, Stöckhert leg., OLINZ. Armenia:18 Km. E. Erevan, 1 ♀, 11-VII-1963, Soika, A. leg., OLINZ.

Bulgaria: Melnik, 2 ♀, 30-V-1967, Kocourek leg., OLINZ; Sandanski, 1 ♀, 1-8-VI-1967, Kocourek, leg., OLINZ;

Slanèev, Brjag, 1 ♂, VI-1968, Pospíŝil leg., OLINZ. France: Pyrenees, Font Romeu, 1 ♀, 11-VII-1965, Vecht, J.

leg., OLINZ; Prauthoy, Marne, 2 ♂,14-VII-1959, OLINZ; in Achillea sp. [Asteraceae] Royan, 1 ♂ and 1 ♀,

without more data, MPARIS; Nantes, 1 ♂, No. 1156, MPARIS; Nantes, 1 ♂, without more data, MPARIS. Greece:

Lamia, 1 ♀, 15-IV-1963, Warncke, K. leg., OLINZ; Olympia, 1 ♀, 18-VIII-1978, Warncke, K. leg., OLINZ.

Macedonia: Prilep, 2 ♀, 1-VI-1968, Warncke, K. leg., OLINZ. Czech Republic: Moravia, Särdice, 1 ♂, 28-V-

1942, Zavadil, V., leg., OLINZ. Turkey: Ayvalik, 1 ♀, 13-IV-1965, Warncke, K. leg., OLINZ; Hakari: Sivelan, 1

♀, 18-V-19725 / 3 ♂, 18-V-1972, Warncke, K. leg., OLINZ; Konia: Sarayönü, 1 ♀, 10-V-1964, Warncke, K. leg.,

OLINZ; Karakurt? Arastal, 1 ♀, 22-V-1972, Warncke, K. leg., OLINZ.

Andrena (Micrandrena) icterina Warncke, 1974

Andrena icterina Warncke 1974:38 (Holotype examined)

Diagnosis. Individuals of this species are characterized by a clypeus with a shiny microsculpture that is weakly

flattened from the middle to the bottom edge. The facial fovea are long, and slightly exceed the antennal socket.

The scutum has PPs that are intermingled between a strong and opaque microsculpture.

Redescription based on holotype. Female: Body length 7 mm. The body has a black integument, while the

legs are dark brown. The pubescence is more or less dense, and whitish-yellow in color.

Head: The genal area has a glossy microsculpture. The vertex, frons, and paraocular area have vertical

grooves, while the inferior area of the paraocular area has obliquely evident PPs. The area bounded by the apical

margin of the compound eye, the lateral ocellus, and the top edge of the occiput has a microsculpture. The facial

fovea is narrower by 0.6 of its lower length, and the top is 2 times wider than the bottom; additionally, the facial

fovea is long and slightly exceeds the antennal socket. The antenna are brown and the lengths are A3=A

4+A

5. The

clypeus has a microsculpture with a brighter apical edge than the rest of its surface, and it is slightly flattened from

the middle to the bottom. The clypeus has a few shallow, irregular, and more or less dense PPs, E=0.5–4. The

process of labrum is black, the base is wider than the apex, and it occupies 0.3 of the lower margin of the clypeus.

It is surrounded by long orange hair. The pubescence is whitish-yellow, with some brown hairs intermingled on the

vertex and paraocular area that reach the length of A1.

Mesosoma: The pronotum has a microsculpture, and in the central region there are evident and slightly shallow

PPs. The scutum and scutellum have a faintly bright microsculpture. The scutum has shallow, more or less

abundant PPs, E=0.5–2, and the scutellum has dense PPs in the middle region, E<1, while they are scarce on the

sides, E=2–3. The mesepisternum has a microsculpture and PBHs that are small, bulky, and more or less dense,

with hairs that reach the length of A1, E=2–3. The metanotum has a rough microsculpture without obvious PPs. The

basal area of propodeum has rough ornamentation without a defined propodeal triangle, and the posterior surface of

the propodeum has a granular microsculpture. The rest of the propodeum has sparse and slightly bulky PPs. The

wings are smoked, and at rest they do not reach the apex of the metasoma. The veins are slightly brown. The hind


legs are brown, however, they are paler in the basitarsus, mediotarsus, distitarsus, and tarsal claw, while the

pubescence is whitish and yellowish on the inside of the basitarsus. The pubescence of the scutum is yellow with

some plumose, short, and brown hairs, even on the anterior region of the scutellum.

Metasoma: T1 has a microsculpture that is impunctate, with a long marginal zone, which has a weaker

microsculpture (as in the rest of marginal zones). The discs from T2 to T

4 have a rough microsculpture that is soft

on the dorsolateral convexity, where the PPs are obvious. The marginal zones are impunctate and occupying more

than 0.5 times the length of the terga. The metasomal bands are whitish-yellow, discontinuously present from T2,

and located in the apical margin of the marginal zones, while the upper edge has long and scarce hairs.

Redescription based on paratype. Male: Body length 5–6 mm. Body with a dark brown integument. The

pubescence is whitish on the head and thorax, and intermingled with brownish hair. In general, the morphology is

similar to that of the female.

Head: The antenna are brown, with a length of A3=A

5. The clypeus is convex, with the middle zone being

weakly flattened as in that of the female. The genal area has a dark brown pubescence on the top, while the lower

zone is white, with long hairs that reach the length of A1.

Mesosoma: The scutum and scutellum are generally like those in the female, but without the short brown hairs.

The mesepisternum has a microsculpture and PPs as in the female, but the apical region has a large white

pubescence that reaches 1.5 times the length of A1. The hind legs are dark brown, and the basitarsus, mediotarsus,

distitarsus, and tarsal claw are slightly paler. The pubescence is whitish, except on the inside face of the basitarsus

where it is yellowish.

Metasoma: T2 to T

4 have slightly evident PPs, and the microsculpture of the marginal zones is weaker than in

the discs, reaching about 0.3 times the length of the terga. The male genitalia have the apical portion of their

gonostylus slightly widened.

Comment. Warncke (1974) noted a similarity to Andrena strohmella Stöckhert, 1928, and indicated that it was

probably a subspecies of this one; however, there are some differences. First, the fold that is evident on the basal

sides of T1, extending at least halfway up the disc in A. strohmella, is not found in A. icterina. Also, the length of

the facial fovea, pubescence of the body, and the presence of a smooth longitudinal line on the clypeus of A.

strohmella are absent in A. icterina. For males, the basal area of the penis valve of A. strohmella has a similar width

to the apical zone, and A3 is clearly shorter than A

5, contrary to what is observed in A. icterina. Due to the clear

morphological differences, A. icterina is considered to be a different species than A. strohmella and, therefore, a

valid species.

Specimens examined.Holotype:Algeria: Teniet, 1 ♀, 10-V-1895, OLINZ. Paratype:Algeria: Algeria, 1 ♀,

undated, OLINZ; Teniet, 1 ♀, 10-V-1895, OLINZ; Teniet, 3 ♂, undated, OLINZ. Other material:Algeria: El Kseur,

1 ♀, 22–23-V-1981, d`Akfadou, F. leg., OLINZ.

Andrena (Micrandrena) minutula minutula (Kirby, 1802)

Melitta minutula Kirby 1802:161

Mellita parvula Kirby 1802:162

Andrena nigrifrons Smith 1855:97 (nec Eversmann 1852, nec Smith 1853)

Diagnosis. Individuals of this species are characterized by a scutum and scutellum with clear and dense PPs, E=1,

while on the metasomal terga they are intermingled between the microsculptures. The marginal zones are not

marked, and occupy approximately 0.5 times the length of the terga. The propodeal triangle is defined and has

rough ornamentation on the basal region. The posterior zone of the propodeum has fine ornamentation, and the

penis valve of the male genitalia is not elongated.

Specimens examined. Iberian Peninsula:Spain: Asturias: Oviedo, Covadonga, 3 ♂, undated, Dusmet, J.

leg., MNCNM. Barcelona: 2 ♀ and 1 ♂, No. 674, no more data, MPARIS; 2 ♀ and 1 ♂, no more data, MPARIS;

Besas, 1 ♀,11-III-1893, no more data, MPARIS; Caldas de Montbui, 1 ♂, 02-VI-1922, Zariquiey leg., OLINZ;

Canet de Mar, 1 ♂, 13-V-1965, Vergés, F. leg., OLINZ; La Garriga, 1 ♀, 20-III-1903, Lyc leg., OLINZ. Cáceres:

Baños de Montemayor, 1 ♀, 01-VI-1907 / 1 ♀, 01-VII-1907 / 3 ♀, 01-V-1943, Dusmet, J. leg., MNCNM; Hervas,

1 ♀, 01-VI-1907, Dusmet, J. leg., MNCNM; Sierra de Villuercas, 2 ♂, 29-V-1991, Ornosa, G. leg., MJ. Dardón


det., UCM. Córdoba: El Soldado, 2 ♀, undated, Seyrig, A. leg., MNCNM; 1 ♂, 25-VI-1907 / 1 ♂, undated,

Seyrig, A., leg., OLINZ; Espiel, Sierra Morena, 1 ♀ 26-V-1927, Seyrig, A. leg., MNCNM. Gerona: Setcases, 1 ♀,

01-VII-1919, Dusmet, J. leg., MNCNM. Granada: Sierra Nevada, 5 ♀, 01-VI-1926 / 1 ♀, 01-VI-1927 / 1 ♀, 01-

VI-1928 / 8 ♀, 01-VI-1929 and 1 ♂ 01-VI-1929, Dusmet, J.leg., MNCNM; 2 ♀, 00-VI-1926 and 3 ♂00-VI-1926,

Dusmet, J.leg., OLINZ. Jaén: Sierra del Pozo, Monte Palomas, 2♀, 11-VI-2003 and 3 ♂, 11-VI-2003, Kafka, M.

leg., MJ. Dardón det., OLINZ, at 1450 masl; Sierra de Segura, Hornos de Segovia, 1 ♀, 19-VI-2003, Kafka, M.

leg., MJ. Dardón det., OLINZ, at 1450 masl. Lugo: Piedrafita del Cebrero, 1 ♀, 25-VII-1950, Expedition of the

Spanish Institute of Entomology, leg., MNCNM, at 1100 masl. Madrid: Escorial, 1 ♀, 20-VI-1904 / 1 ♀, 12-VI-

1919, Dusmet, J. leg., MNCNM; 2 ♀, 20-VI-1904 / 1 ♀, 14-V-1916 / 1 ♀, 24-VI-1941 / 1 ♀, 14-V-1936 / 1 ♂, 18-

IV-1917 Dusmet, J. leg., OLINZ; Madrid, 1 ♀, undated, Mercet leg., MNCNM; San Fernando de Henares, 1 ♀, 08-

VI-1910, Dusmet, J.leg., OLINZ; Sierra de Guadarrama, 1 ♀, 12-V-1912 and 1 ♀, 10-VI-1917, Dusmet, J.leg.,

MNCNM; 1 ♀, 12-V-1912 / 1 ♀, 14-V-1919 /1 ♀, 10-VI-1924 / 1 ♀, 16-IV-1925 Dusmet, J.leg., OLINZ. Málaga:

Sierra Nieves, Corjo de la Nava, 1 ♀, 14-VI-2003, Kafka, M. leg., MJ. Dardón det., OLINZ, at 1400 masl.

Salamanca: Villarino de los Aires, Ambasaguas, 1 ♂, 19-IV-2009, Dardón, MJ.leg., MJ. Dardón det., USAL.

Segovia: La Granja, 1 ♂, 01-IX-1933,Gil, J.leg., undated, MNCNM. Soria: La Mallona, 1 ♂,02-VIII-1989, García,

J.leg., MJ. Dardón det., USAL; Lubia, 1 ♀, 22-VII-1989, García, J.leg., MJ. Dardón det., USAL; Valtueña, 1 ♂,

17-VI-1990, García, J.leg., MJ. Dardón det., USAL; Villar del Ala, 1 ♀, 26-VIII-1989, García, J.leg., MJ. Dardón

det., USAL. Valencia: Cataluña? Parc Natural del Carrascal, 1 ♀, 09-V-1997, Stary, P.leg., MJ. Dardón det.,

OLINZ; Moncada, 1 ♀, 25-XI-1905, OLINZ. Valladolid: Viana de Cega, 1 ♀, 08-VI-1994, 1 ♀, 04-IV-1994, 3

♀,27-VI-1993 /2 ♀, 14-VI-1993 / 7 ♂ 08-VI-1994 / 1 ♂, 26-V-1994 / 6 ♂, 27-VI-1993 / 4 ♂, 26-V-1994 /2 ♂, 14-

VI-1993 / 3 ♂, 21-VI-1994, González, J.leg., F. Gusenleitner det., USAL; 1 ♂, 26-V-1994 / 1 ♂, 08-VI-1994 / 1 ♂,

27-VI-1993, González, J.leg., MJ. Dardón det., USAL, Andrena nana by F. Gusenleitner. Unknown locality:1 ♀,

undated, P-Iñigo, C. det., UCM; 5 ♀, undated, Seebold leg., MNCNM. Portugal: Coimbra: Pinhal de Marrocos, 1

♂, 07-VI-1968 and 1 ♂, 23-III-1968, Diniz, M.A. leg., OLINZ. Viseu: Foz do Ceira, 1 ♀, 01-VII-1962, OLINZ.

Other localities:France: França Castell del Canigo, 1 ♂, 25-VII-1936, Villarubia, A.leg., OLINZ; Gèare, 2 ♀,

undated, MPARIS; Nantes, 1 ♀, undated, Teunissen, H. det., MPARIS.

Andrena (Micrandrena) minutula lenis Pérez, 1903

Andrena lenis Pérez 1903:85 (Paratype examined)

Andrena gilvifrons Pérez 1903:84

Diagnosis. The female of this species has a body with weaker PPs than in the nominate subspecies. The clypeus, at

its center, is slightly flattened, with a weaker microsculpture than in A. minutula minutula, and deep, regular, small,

and dense PPs, E=1–3. The propodeal triangle is defined and has the same ornamentation that appears in the

nominal subspecies. The gaster has barely perceptible PPs that are small and shallow, and on the sides of the disc

they appear bulky. For this reason the integument looks rough and rugged. The male is very similar to the nominate

subspecies with a few differences. The scutum has coarser and stronger PPs. The gaster is very bright, with a

weaker microsculpture than in the nominal species, and hardly perceptible PPs that are more widespread and

evident on the sides of the discs. The metasomal bands have whitish hair and are developed, dense, and present

only in the apical part of the marginal zone.

Comment. Warncke (1976) suggested that Andrena lenis, Pérez, 1903, corresponds, in reality, to a subspecies

of A. minutula, but he did not indicate the characteristics for differentiation. For this reason, it was necessary to

determine the features for their identification, which are included in this study as a diagnosis of the subspecies.

Specimens examined.

Andrena lenis Pérez 1903

Paratype:France: Royan, 1 ♀, no more data, MPARIS.Other material:Iberian Peninsula:Spain: Cáceres:

Guadalupe, 1 ♀, 22-IV-1977, Asensio, E. leg., USAL. Madrid: Casa de Campo, 1 ♀, 02-VI-1956, Alvarez, J. leg.,

MJ. Dardón det., UCM. Salamanca: Bejar Ca. Aldeacipreste, 1 ♀, 05-III-1978, Gayubo, S. leg., MJ. Dardón det.,

USAL. Valladolid: Viana de Cega, 1 ♀, 27-III-1994, González, J. leg., USAL.


Andrena (Micrandrena) minutuloides Perkins, 1914

Andrena minutuloides Perkins 1914:114

Andrena parvuloides Perkins 1914:114

Andrena sparsiciliata Alfken 1925:165

Diagnosis. Individuals of this species are characterized by a very bright scutum and scutellum. The posterior zone

of the scutellum is impunctate and glossy. The metasomal terga have a microsculpture and PPs that are less obvious

than in the scutum.

Specimens examined. Iberian Peninsula:Spain: Asturias: Gijón, 1 ♀, undated, Dusmet, J. leg., MNCNM.

Cantabria: Picos de Europa, Espinama, 1 ♀, undated, Escalera, M. leg., MNCNM. Gerona: Camprodón, 1 ♀, 01-

VIII-1919, Dusmet, J. leg., MNCNM. Huesca: San Juan de la Peña, 1 ♀, 04-VII-1943, Expedition of the Spanish

Institute of Entomology leg., MNCNM, at 1220 masl.; Valle de Ordesa, 2 ♀, 01-VIII-1931, Dusmet, J. leg.,

MNCNM; 1 ♀, 01-VIII-1931, Dusmet, J. leg., OLINZ. León: Villablino, 1 ♀, 26-VII-1949, Expedition of the

Spanish Institute of Entomology leg., MNCNM, at 1000 masl. Pontevedra: Bayona, 15 ♀,01-VIII-1922, Dusmet,

J. leg., MNCNM; 1 ♂ and 1 ♀, 01-VIII-1922, Dusmet, J. leg., OLINZ; 1 ♀, 09-VIII-1973, Gallego, A. leg., M.J.

Dardón det., UCM; Pontevedra, 1 ♀, VII-1922, Dusmet, J. leg., MNCNM. Soria: Boos, 1 ♀, 22-VIII-1989, García,

J. leg., MJ. Dardón det., USAL; Rello, 2 ♀, 12-VI-1990, García, J. leg., MJ. Dardón det., USAL. Valladolid:

Sardón del Duero, 1 ♀, undated, Dusmet, J. leg., MNCNM; Valladolid, 1 ♀, 23-VI-1978, Asensio, E. leg., USAL.

Vizcaya: Zaldívar, 1 ♂, 05-IV-1916, Dusmet, J. leg., OLINZ. Zamora: Mombuey, 1 ♀, 27-VIII-1987, Heras, C.

leg., MJ. Dardón det., USAL. Unknown locality: Gasanja? 1 ♀, 01-VII-1906, Cendrero leg., MNCNM. Portugal:

Coimbra: 1 ♀, no more data, OLINZ. Other localities:Albania:1 ♀, 06-VII-1961, Exp. Del Mali me Grossë,

Dolinengebiet, Exp? (illegible handwriting) leg., OLINZ. Germany: Bavaria: Dachau, 1 ♀, 02-VI-1963 / 1 ♂, 06-

VI-1963, Warncke, K. leg., OLINZ; Erlangen, 1 ♂, 12-IV-iC?, Stöckhert leg., OLINZ; Starnberg, 1 ♂, 05-V-1925,

Stöckhert leg., OLINZ. Austria: Lower Austria: Hainbach, 1 ♀, undated, Hicker, R. leg., OLINZ. Vienna: Mader,

1 ♂, no more data, MBERLIN. Greece: Olympia, 1 ♀, 18-VIII-1978, Warncke, K. leg., OLINZ; Italy: Turín, 2 ♀,

30-V-1961, Warncke, K. leg., OLINZ. Moravia: Èejè, 1 ♂, 10-V-1940, Zavadil, V. leg., ¿? det., OLINZ. Serbia:

Nis, 1 ♀, 14-V-1964, Warncke, K. leg., OLINZ. Turkey: Ankara: 1 ♂, 21-V-1972, Warncke, K. leg., OLINZ.

Hakari: Sivelan, 1 ♀, 18-V-1975, Warncke, K. leg., OLINZ. Unknown locality:B´Füred-Platters, 1 ♂, 11-VIII-

1966, Warncke, K. leg., OLINZ.

Andrena (Micrandrena) nana (Kirby, 1802)

Melitta nana Kirby 1802:161

Andrena schenckella Pérez 1903:88 [nomen novum for A. nana sensu Schenck]

Andrena nana var. taorminae Strand 1921:286

Andrena asuniensis Strand 1921:286

Andrena nanoides Stöckhert 1924:171

Diagnosis. Individuals of this species, in both sexes, are characterized by a strongly punctate metasomal terga, with

a microsculpture on the integument that is weak or appears to be absent, and therefore, very bright. Females show

an facial fovea that is clearly narrower in the lower half. Males are recognized easily by the length of A3, which is

1.4 times that of A4.

Comment. Often, the males of A. nana vary morphologically. For example, the color of the veins can vary

from brown to black. The scutum has a microsculpture that can be present over its entire surface, or limited to a

small region. However, the constitution of the male genitalia, a body with strong PPs, and an A3 almost 1.4 times

the length of A4, clearly identify them.

Specimens examined. Iberian Peninsula:Spain: Alicante: 1 ♀, undated, Mercet leg., MNCNM; 1 ♂,

undated, Mercet leg., OLINZ. Almería: Sierra Alhamilla, Lucainena, 5 ♀, 25-IV-2003, Halada, J. leg., MJ. Dardón

det., OLINZ. Barcelona: 2 ♀ and 1 ♂,1915, Pérez, J. leg., MPARIS; Besas, 1 ♂, 11-III-1894, Pérez, J. leg.,

MPARIS; Reina, 2 ♀, 14-VI-1985, Gayubo, S.F. leg., USAL. Cáceres: 1 ♀, 04-IV-1921, Dusmet, J. leg., OLINZ;

Baños de Montemayor, 6 ♀, V-1943, Dusmet, J. leg., MNCNM, at 738 masl; Hervas, 2 ♀, VI-1907, Dusmet, J.


leg., MNCNM; Trujillo, Pto. de Miraveis, 23 ♀ and 1 ♂, 11/12-VI-1996, Tiefenthaler leg., MJ. Dardón det.,

OLINZ, at 600 masl. Castellón: Castellón env., 3 ♀, VI-1997, Kadlecova leg., MJ. Dardón det., OLINZ; Orihuela,

1 ♀, undated,Dusmet, J. leg., MNCNM. Ciudad Real: Pozuelo de Calatrava, 1 ♀, undated, MNCNM. Córdoba:

Bélmez, 1 ♀, undated, Seyrig, A. leg., MNCNM; Bélmez, 1 ♀, 24-IV-1927, Seyrig, A. leg., OLINZ; El Soldado, 4

♀ and 1 ♂, undated, Seyrig, A. leg., MNCNM; Sierra Morena, Espiel, 6 ♀, 26-V-1927, Seyrig, A. leg., MNCNM;

Sierra Morena, Espiel, 1 ♂, 26-V-1927, Seyrig, A. leg., OLINZ. Gerona: Palamos, 2 ♀, undated, Dusmet leg.,

MBERLIN. Granada: Sierra Nevada, Subida Veleta, 2 ♂, 30-VI-2009, Ornosa, C. leg., MJ. Dardón, UCM, at

2622 masl. Madrid: El Escorial, 2 ♂, undated, Bolivar leg., OLINZ; 1 ♀, 20-VI-1904, Dusmet, J. leg., OLINZ; 1

♀, 16-IV-1925, 2 ♀, 21-VI-1922, Dusmet, J. leg., OLINZ; 3 ♀, undated, Dusmet, J. leg., MNCNM; Collado

Mediano, 1 ♀, 07-V-1979, P-Iñigo, P. leg., MJ. Dardón det., UCM, collected in cruciferous; C. Vellón, S. Lagos, 1

♀, 29-VI-1979, P-Iñigo, P. leg., MJ. Dardón det., UCM, collected on Daucus sp. [Apiaceae]; Madrid, 1 ♀, undated,

Mercet leg., MNCNM; Madrid, 1 ♂, undated, Mercet leg., OLINZ; Rivas, 1 ♂, 03-VI-1931, Dusmet, J. leg.,

OLINZ; Robledo de Chavela, 1 ♀, 09-V-1979, P-Iñigo, P. leg., MJ. Dardón det., UCM; Sierra de Guadarrama, 1 ♀,

22-VI-1925 and 1 ♂, 15-VI-1927, Dusmet, J. leg., OLINZ; Sierra de Guadarrama, 1 ♀, undated, Dusmet, J. leg.,

MNCNM; Villanueva de la Sra., 7 ♀ and 1 ♂, 21-VI-1987, Torres, F. leg., F. Gusenleitner det., USAL. Murcia:

Cartagena, 25Km SW, 1 ♂, 12-VI-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Navarra: Pamplona, 1 ♀, 18-

VIII-1956, Peris, SV. leg., MJ. Dardón det., UCM. Pontevedra: Bayona, 1 ♀, VIII-1906, Dusmet, J. leg.,

MNCNM; Pontevedra, 1 ♂, VII-1922, Dusmet, J. leg., OLINZ. Salamanca: Béjar, Ca. Ciudad Rodrigo, 1 ♀, 01-

VII-1977, Gayubo, S.F. leg., MJ. Dardón det., USAL, at 920 masl.; El Sahugo, 8 ♀, 22-VI-1987, Torres, F. leg., F.

Gusenleitner det., USAL; Navacarros, 3 ♀, 22-VII-1977, Gayubo, S.F. leg., MJ. Dardón det., USAL, at 1140 masl;

Navalmoral, 1 ♀, 11-VII-1977, Gayubo, S.F. leg., MJ. Dardón, USAL, at 880 masl.; Villarino de los Aires,

Ambasaguas, 2 ♂, 19-IV-2009, Dardón, MJ. leg., MJ. Dardón det., USAL. Tarragona: Tortosa, 40Km. N., 2 ♂,

16-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Unknown locality: Puebla del M., 1 ♀, Gayubo, S.F. leg.,

15-VI-1985, USAL. Portugal: Guarda:Videmonte, 1 ♂, 10-VIII-1987, Torres, F. leg., F. Gusenleitner det., USAL;

Seia: 1 ♀, 24-VI-1987, Torres, F. leg., F. Gusenleitner det., USAL.

Andrena (Micrandrena) niveata niveata Friese, 1887

Andrena niveata Friese 1887:25

Diagnosis. Individuals of this species are characterized by the strong and dense microsculpture of the marginal

zone, especially of T2–T

1, with a curved basal region without marginal zones and PPs. The male genitalia have a

long apical area of the gonostylus with a wider base, while the penis valve is slightly elongated.

Specimens examined. Iberian Peninsula:Spain: Almería: Tijola, 1 ♀, 1900, Escalera, M. leg., MNCNM.

Barcelona: Cardeden, 2 ♀, 06-V-1923, Zariquiey leg., OLINZ. Cáceres: Torrequemada, 3 ♀ and 1 ♂, V-1935, Gil

Collado leg., MNCNM. Madrid: Ciempozuelos, 2 ♀, 29-IV-1925, Dusmet, J. leg., MNCNM; El Escorial, 1 ♂, 10-

IX-1924, Dusmet, J. leg., MNCNM; Montarco, 1 ♀, 28-IV-1924, Dusmet, J. leg., MNCNM; Vaciamadrid, Rivas, 1

♂, 28-IV-1931, Dusmet, J. leg., MNCNM. Salamanca: Villarino de los Aires, Ambasaguas, 1 ♂, 19-IV-2009,

Dardón, M.J. leg., MJ. Dardón det., USAL. Valladolid: Viana de Cega, 1 ♂, 08-VI-1994, González, J.A. leg., MJ.

Dardón det., USAL. Zaragoza: Pina de Ebro, 2 ♀ and 2 ♂, 26-III-1989 / 2 ♀, 08-IV-1989 /2 ♀, 02-IV-1989 / 1 ♀,

20-V-1989 / 1 ♀, 03-III-1990 / 2 ♀, 17-III-1990 / 2 ♀, 22-IV-1990 / 1 ♀, 09-IV-1991 / 1 ♀,20-III-1992 / 2 ♀, 10-

IV-1992 / 1 ♂ and ♀, 11-IV-1992 / 7 ♀, 25-IV-1992, Blasco, J. leg., MJ. Dardón det., USAL.

Andrena (Micrandrena) niveata lecana Warncke, 1975

Andrena niveata lecana Warncke 1975:298 (Holotype examined)

Diagnosis. In both sexes, T1 has a flat or smooth microsculpture with PPs that are more evident than in the

nominate subspecies, although they are small. Following the terga are PPs that are deeper than those on T1.

Comment. After this revision, we can say that the character of the intensity of the microsculpture of T1 does


not have intermediate forms in these subspecies. However, as observed in other species, it becomes variable and is

not recommended for the designation of a species. In the case of this subspecies, this attribute is accepted, but

noted as questionable. There were no other features that differentiated them, so a more comprehensive study of A.

niveata lecana is required, along with the use of alternative techniques to determine whether it corresponds to a

subspecies or is a synonym.

Specimens examined. Holotype:Madrid: Rivas, 1 ♀, 06-V-1908, Dusmet, J. leg., OLINZ. Paratype:Ciudad

Real: Pozuelo de Calatrava, 1 ♀, undated, Dusmet, J. leg., OLINZ; Pozuelo de Calatrava, 1 ♂, undated, La Fuente

leg., OLINZ. Granada: Huéscar, 1 ♀, 1900, Escalera leg., OLINZ. Madrid: Alcalá de Henares, 1 ♀, 13-VI-1909,

Dusmet, J. leg., OLINZ; Aranjuez, Madrid, 1 ♂, 01-IV-1926, Lindberg leg., OLINZ; Ciempozuelos, 1 ♂, 29-IV-

1925, Dusmet, J. leg., OLINZ; Escorial, 1 ♂, 06-V-1906 / 2 ♀ and 2 ♂, 10-V-1924, Dusmet, J. leg., OLINZ;

Madrid, 1 ♀, 08-III-1906, Dusmet, J. leg., OLINZ; Rivas, 2 ♂, 02-V-1901 / 1 ♂, 28-IV-1931, La Fuente leg.,

OLINZ; Torrejón de Ardoz, 1 ♀, 27-V-1906, Dusmet, J. leg., OLINZ; Vaciamadrid, 1 ♂, 25-IV-1919, Dusmet, J.

leg., OLINZ. Other material:Iberian Peninsula:Spain: Almería: Sierra Alhamilla, Lucainena, 1 ♂, 25-IV-2003,

Halada, J. leg., MJ. Dardón det., OLINZ; Sierra Filabres, Albanchez, 3 ♀ and 2 ♂, 24-IV-2003, Halada, J. leg., MJ.

Dardón det., OLINZ; Sierra Filabres, 9 Km. E, Albanchez, 2 ♀ and 1 ♂, 23-IV-2003, Halada, J. leg., MJ. Dardón

det., OLINZ. Ciudad Real: Pozuelo de Calatrava, 2 ♂, undated, La Fuente leg., MJ. Dardón det., MNCNM, before

named Andrena spreta by K. Warncke. Málaga: Ronda, 20 Km NE, 3 ♂, 30-IV-2003, Halada, J. leg., MJ. Dardón

det., OLINZ, at 1000 masl. Valladolid: Iscar, 1 ♀, 2-V-1982, Asensio, E. leg., USAL; Corcos, 1 ♂, 12-V-1984,

Asensio, E. leg., USAL. Zaragoza: Pina de Ebro, 1 ♂, 26-III-1989 and 1 ♂, 08-IV-1989, Blasco, J. leg., MJ.

Dardón det., USAL.

Andrena (Micrandrena) saxonica Stöckhert, 1935

Andrena saxonica Stöckhert 1935:82

Andrena krasensis Gogala 1991:13

Diagnosis. Individuals of this species are distinguished by the clypeus being strongly flattened, with a dull

microsculpture and small, shallow, and irregular PPs, E=1–6.

Comment. This species was considered to be rare (Stöckhert 1935); however, in the Iberian Peninsula, 8

specimens of A. saxonica were collected during an expedition in Andalusia in 2003 by M. Kafka. Therefore, it is

possible that these are not rare in this region, but that their scarcity may be due to a lack of collection.

Specimens examined. Iberian Peninsula:Spain: Gerona: C.B. Playa de Aro, 1 ♀, 25-V-1973, Harde, H. leg.,

OLINZ. Jaén: Sierra del Pozo, Puerto Llano, 6 ♀, 12-VI-2003, Kafka, M. leg., MJ. Dardón det., OLINZ, at 1800

masl; Sierra del Pozo, Monte Palomas, 2 ♀, 11-VI-2003, Kafka, M. leg., MJ. Dardón det., OLINZ, at 1450 masl.

Madrid: Escorial, 1 ♂, 09-V-1909, Dusmet, J. leg., OLINZ. Salamanca: Ledrada, 1 ♂, 23-IV-1977, Gayubo, S.

leg., MJ. Dardón det., USAL. Other localities: Algeria: El Kseur, 1 ♀, 22-23-V-1981, Boffa et al., (MRNS) leg.,

d´Akfadou det., OLINZ. Austria:Lower Austria: Orth, Donau, 2 ♀ and 1 ♂ 24-IV-1961 / 2 ♂, 17-IV-1961 / 1 ♂,

21-IV-1961, Warncke leg., OLINZ. Burgerland: Neusiedl am See, 1 ♀, 3-V-1975, Schwarz, M. leg., OLINZ.

Bulgaria: Vraschka tschuka, 1 ♂, 4-V-1965, Atanasov, N. leg., OLINZ. Lombardia: Valsassina, 3 ♀, 5-V-1935,

Prestifilippo leg., OLINZ. Macedonia: Hotel Mavrovo, 1 ♀, 22-VI-1966, Kgm. leg., MBERLIN; Popova Sapka, 1

♂, 24-VI-1966, Kgm. leg., MBERLIN. Czech Republic:Moravia: Mer. Hovorany, 5 ♀, 27-V-1942, Zavadil, V.

leg., Zavadil det.?, OLINZ; Mer. Èejè, 2 ♂, 1-V-1943 / 1 ♂, 3-V-1943, Zavadil, V. leg., Zavadil det.?, OLINZ; Èejè,

1 ♂, 7-V-1943, Kocourék leg., Grünwaldt, W. det., OLINZ. Unknown locality:B. Alpes, 1 ♀, 04-VI-1966, Perty,

C. leg., OLINZ; Prairie to 1303 masl.

Andrena (Micrandrena) semilaevis Pérez, 1903

Andrena semilaevis Pérez 1903:89 (Paratype examined)

Andrena saundersella Perkins 1914:72

Andrena anthrisci Blüthgen 1925:156 (Holotype examined)


Diagnosis. Individuals of this species are recognized by marked marginal zones in the terga, with a microsculpture

that is weaker than on the disc, and usually vey glossy. The marginal zones always contrast with the disc, or at

least, appear brighter.

Comment. Andrena semilaevis Pérez, 1903, was described by "the marginal zones of terga... absolutely

smooth and very bright," which allows for easy recognition. Later, Perkins (1914) established Andrena

saundersella Perkins, 1914, by "the brilliant and deep marginal zones of T3," but now this species is regarded as a

synonym of A. semilaevis. Dylewska (1987) considers Andrena anthrisci Blüthgen, 1925, a synonym of A.

semilaevis, based on the characteristics provided by Blüthgen to differentiate these species with the length of the

antennal segment. However, this characteristic is highly variable, and therefore, corresponds to the same species.

The latter synonymy has generated debate and, to date, some authors maintain both as valid species

(Schmid–Egger & Scheuchl 1997; Gusenleitner & Schwarz 2002; Schwenninger 2009).

The work of Schwenninger (2009), based on the study of females, suggests that both species are valid. It

indicates a difference in the depth and microsculpture of the marginal zones. Given this, it should be noted that

Blüthgen (1925) has differentiated A. anthrisci and A. semilaevis by only the microsculpture of T1, and he did not

appreciate the differences indicated by Schwenninger (2009). This study finds that the intensity of the

microsculpture of T1 is a feature that could vary (as seen in Andrena nana (Kirby, 1802)), and should not be used in

the differentiation of species. After the revision of the individuals identified as A. semilaevis and A. anthrisci, both

males and females, there were no clear morphological differences for recognizing each species.

Therefore, A. semilaevis and A. anthrisci are apparently the same species, and the synonymy should be

maintained, although it would be advisable to use other techniques for a final confirmation.

Specimens examined.

Andrena semilaevis Pérez, 1903

Paratype:France: Royan, 1 ♂, IV-?, OLINZ; Barey or Bares (illegible handwriting), 2 ♀ (1 without gaster), -

V-?, OLINZ. Other material:Iberian Peninsula:Spain: Gerona: Canet de Mar, 1 ♂, 27-III-1966, OLINZ; Pirineos,

at 8 Km. of Camprodón, 1 ♀, 5-VI-1985, Haeseler leg., OLINZ. Soria: Cidones, 1 ♀, 22-VIII-1990, García, J. leg.,

MJ. Dardón det., USAL. Portugal: Guarda: Seia: Vale do Rossim, 1 ♀, 24-VI-1987, Torres, F. leg., F.

Gusenleitner det., USAL. Unknown Locality: Barés, 1 ♀, undated, Pérez, J. leg., J. Pérez det., MPARIS; undated,

1 ♂, undated, Pérez, J. leg., J. Pérez det., MPARIS. Other localities:Austria: Tirol: Alpbach, 1 ♀, 15-VI-1974,

Warncke, K. leg., OLINZ. Montenegro: border with Albania, 1 ♀, 12-VII-?, Penther leg., OLINZ.

Andrena saundersella Perkins, 1914

Germany: Bavaria: Einig a.D. Bay, 1 ♀, 1-VII-1938, Stöckhert leg., OLINZ; Erlangen, 1 ♂, 26-V-1915 / 1 ♂,

7-VI-1928 / 1 ♂, 12-VI-1932, Stöckhert leg., OLINZ; Lechhausen, 1 ♀, 09-VI-1962, Warncke, K. leg., OLINZ;

Pappenheim, 1 ♀, 31-V-1929 / 1 ♀, 27-VI-1932 / 1 ♂, 02-VI-1932 / 1 ♀, 1-VII-1932 / 1 ♀,04-VII-1933 / 2 ♂, 06-

VI-1933, Stöckhert leg., OLINZ; Starnberg, 2 ♂, 18-V-1924, Stöckhert leg., OLINZ; Thaldorf Bay, 1 ♀, 8-VI-

1938, Stöckhert leg., OLINZ. Switzerland: Valais: Saas-Fée, 1 ♀, VIII-1912, OLINZ. Unknown Locality:

Germany, 1 ♂, 18-V-1912, Stöckhert leg., OLINZ; Kyffh-Geb, 1 ♂, VI-1941, Eigen leg., OLINZ; Pinow i. Pom, 1

♀, VI-1942, Eigen leg., OLINZ.

Andrena anthrisci Blüthgen, 1925

Holotype:Germany: Turingia: Mühlhausen, 1 ♀, 26-VI-1914, Blüthgen, P. leg., MBERLIN, 050301scwe288.

Other Material:Iberian Peninsula: Spain: Burgos: Burgos, 1 ♀, 26-IV-1961, Exc. R.M.N.H. leg., OLINZ, at 850

masl. Other localities:Germany: Baden-Württemberg: Bischenberg, 1 ♂, 24-V-1936, Klein, M. leg., Stöckhert

det., OLINZ; Kehl, 1 ♂, 10-VI-1939, Balles, L. leg., OLINZ. Bavaria: Bavaria, WAG., 1 ♂, 29-VI-1985, Warncke,

K.leg., OLINZ; Dachau, 1 ♀ and 1 ♂,10-VI-1978 / 2 ♀ and 4 ♂, 26.VI.1988 / 1 ♀, 11-VI-1983, Warncke, K.leg.,

OLINZ; Eining a.D. Bay, 1 ♀, 09-VI-1937 / 1 ♀, 01-VII-1938, Stöckhert leg., OLINZ; Gauting, 1 ♀, 22-VI-1972,

Haeselbarth leg., OLINZ; Nord Bayern, Hombürglor?, 1 ♂, 21-VII-1979, Kraus, M. leg., OLINZ; Pappenheim, 1 ♀,

20-VI-1930 / 1 ♂, 14-VI-1932 / 1 ♂, 18-VI-1932 / 1 ♀, 30-VI-1932 / 2 ♂, 04-VI-1933 and 2 ♂, 13-VI-1933,

Stöckhert leg., OLINZ; Thaldorf Bay, 1 ♀, 10-VII-1941, Stöckhert leg., OLINZ. France: Bas-Rhin: Soultz l. Bains,

1 ♂, 13-V-1934, Klein, M.leg., OLINZ, in Lepidium L. [Brassicaceae] Hautes-Alpes: Barret-le-Haut nr., Laragne,

1 ♀, 20-VI-1962, Lieftinck, M. leg., OLINZ, mer. 800 masl. Eastern Pyrenees: Font Romeu, 1 ♀, 11-VII-1965,


Vecht, J. leg., OLINZ. Russia: Volga: Dreispitz, 1 ♀, 12-VI-1930, Klein, M. leg., OLINZ. Unknown

locality:Kolmint o Kolmont, 1 ♂, 11-VI-1966, B.V.L. leg., OLINZ.

Andrena (Micrandrena) simontornyella simontornyella Noskiewicz, 1939

Andrena simontornyella Noskiewicz 1939:246

Andrena corpana Warncke 1965:66

Diagnosis. Individuals of this species are characterized by a wide facial fovea. The scutum and scutellum have PPs

intermingled between the microsculptures. The process of labrum is small and occupies, at its base, about 0.2 of the

lower margin of the clypeus. The constitution of the male genitalia is unmistakable, as in the rest of species of the

subgenus Andrena (Micrandrena) in the Iberian Peninsula. The dorsal lobe of the gonocoxite is elongated, and the

gonostylus is to the inside of it.

Specimens examined. Iberian Peninsula:Spain: Asturias: Oviedo, 1 ♀, 20-IV-1973, López, L. leg., MJ.

Dardón det., UCM. Barcelona: Balenyá, 20-IV-1933, Villarubia leg., OLINZ; Montjoich, 1 ♀, undated, Zariguey

leg., OLINZ; Santa Creu d´Olorda, 1 ♀, V-1933, Esp i vil? leg., OLINZ. Other localities:France: Alpes de Haute

Provence: Montagne d. Lure, Lauzon b. Cruis, 1 ♂, 03-V-1979, Schacht, W. leg., OLINZ. Bocas del Ródano:

Saint Rémy de Provence, 1 ♂, 03-IV-1964, OLINZ. Gironda: Burdeos, 1 ♂, 4-j-?, no more data, MBERLIN.

Niévre: Decize, 1 ♂, 13-IV-1967, de Chenon leg., OLINZ. Vaucluse: Bédoin, 500m. 1 ♀, 16-20-VI-1979,

Perraudin, W. leg., OLINZ. Greece: Islands Lefkas, 1 ♂, 8-30-V-1929, Beier leg., MBERLIN. Hungary: Tolna:

Simontornya, 1 ♂, 2-4-IV-1936, Hu. occ. leg., OLINZ; Budapest, 1 ♂, 15-30-V-1922, Enslin leg., OLINZ; Italy:

Brescia: Riva del Garda, 1 ♂, 17-IV-1973, Hbth. leg., OLINZ. Foggia: Manfredonia, 1 ♂, 09-IV-1953 / 1 ♀, 20-

IV-1963, Warncke, K. leg., OLINZ. Genoa: Genoa, 1♀, V-1935, Mancini leg., OLINZ; Nervi, 1 ♂, 09-22-IV-1925,

Meyer, R. leg., OLINZ. Rome: Torraccia, Montebello, 1♀, 30-IV-1953, Comba leg., OLINZ. Turin:1 ♀, 20-V-

1961, Warncke, K. leg., OLINZ. Macedonia: Ohrid: Strasse n. Konklo, 1♀, 18-VI-1966, Kgm. leg., MBERLIN.

Serbia: Niš, 1♀, 14-V-1964, Warncke, K. leg., OLINZ. Turkey: Istanbul: Büyükdere,1 ♀ and 3♂, 8-IV-1972 / 1

♂, 10-IV-1972, OLINZ. Unknown locality:Alpes -Mar. Plateu de la Justice, 1 ♂, 24-IV-1962, OLINZ, in

Taraxacum erythrospermum Andrz. Ex Besser [Asteraceae]; Ohrid. Yu. Mac, 3♀, 29-V to 10-VI-1972, Teunissen

leg., OLINZ.

Andrena (Micrandrena) simontornyella adianta Warncke, 1974

Andrena simontornyella adianta Warncke 1974:12, 38 (Holotype examined)

Diagnosis. This subspecies is very similar to the nominate subspecies. It is recognized by a convex clypeus that is

not flattened in the center of the lower half, with fine and weak folds. The clypeus has a microsculpture in the

apical region that is coarser than in A. simontornyella simontornyella. The process of labrum is more or less

triangular, and the basal area of propodeum has fine ornamentation on the central and back regions. The propodeal

triangle is defined, and the metasomal marginal zones are more marked than in the nominate subspecies. The male

has not yet been described.

Comment. The male of A. simontornyella adianta is unknown, so a greater effort must be made for its capture.

Both subspecies are rare in the Iberian Peninsula, which is reflected in the small number of specimens found for

this work.

Specimens examined. Holotype:Morocco: Tangier, 1 ♀, undated, no more data leg., OLINZ.Other

material:Iberian Peninsula:Portugal: Coimbra: Pinhal de Marrocos, 1♀, 02-IV-1968, Diniz leg., OLINZ. Other

localities:Hungary: Tolna: Simontornya, 1 ♀, 01-V-1937, Pillich leg., OLINZ.

Andrena (Micrandrena) spreta spreta Pérez, 1895

Andrena spreta Pérez 1895:43 (Paratype examined)


Andrena curtula Pérez 1903:85 (Lectotype examined)

?Andrena lampronota Pérez 1911:41

Andrena pauxilla Stöckhert 1935:71

Diagnosis. Individuals of this species are recognized by the characteristic microsculpture of the T, which could be

defined as strong, rough, and intermingled with PPs. The marginal zones are clearly marked. The males are

characterized by the strong microsculpture of the marginal zones, which is stronger than in the discs. A3 and A

4 are

short. The species is bivoltine and shows some dimorphism.

Specimens examined.

Andrena spreta Pérez, 1895

Paratype:Algeria: Biskra, 3 ♀, undated, OLINZ. Other material:Iberian Peninsula:Spain: Almería: Berja 50

Km. W., 1 ♀, 21-28-IV-2003, Halada, J. leg., OLINZ; 7 ♂, 28-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ;

Las Negras, 50 Km. E., 5 ♂, 27-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra Alhamilla, Lucainena, 5

♀ and 5 ♂, 25-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra de María, 25 Km W Lorca, 1 ♀, 10-V-

2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra Filabres, 9 Km. E., Albárchez, 6 ♀ and 3 ♂, 23-IV-2003,

Halada, J. leg., MJ. Dardón det., OLINZ; Sierra Filabres, Albánchez, 2 ♀ and 1 ♂, 24-IV-2003, Halada, J. leg., MJ.

Dardón det., OLINZ. Barcelona: Canet de Mar, 1 ♀, 26-III-1963 and 1 ♂, 22-V-1965, Fco. Vergés leg., OLINZ.

Cáceres: Hervás, 1 ♀, 01-VI-1907, Dusmet, J. leg., MNCNM; Jerte, 1 ♀, 23-IV-1991, P. Ornosa leg., MJ. Dardón

det., UCM; Navalvillar de Ibor, 1 ♀, undated, MJ. Dardón det., UCM. Ciudad Real: Cañizares, 1 ♀, undated,

Selgas leg., MNCNM; Pozuelo de Calatrava, 1 ♀, undated, La Fuente leg., MNCNM. Córdoba: El Soldado, 1 ♀,

22-V-1927 and 1 ♂, 01-II-1926, Seyrig, A. leg., MNCNM; Espiel, 1 ♂, 28-II-1926, Seyrig, A. leg., OLINZ;

Iznájar, 1 ♂, 01-VI-1909, Expedition of the Spanish Institute of Entomology, leg., MNCNM; Sierra Morena,

Espiel, 1 ♀, 15-V-1927, Seyrig, A. leg., MNCNM; Sierra Morena, Peñarroya, 1 ♀, 05-VI-1927, Seyrig, A. leg.,

MNCNM. Granada: Sierra Nevada, near Alboloduy, 4 ♀ and 1 ♂, 6-7-V-2003, Halada, J. leg., MJ. Dardón det.,

OLINZ; Sierra de Nevada, env. Lanjarón, 1 ♂, 4-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra Nevada,

Ohanes env., 3 ♀, 5-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Huelva: Huelva, 1 ♂, V-1927, Dusmet, J.

leg., OLINZ. Jaén: Sierra del Pozo, Mnt. Palomas, 2 ♀, 11-VI-2003, Kalfka, M. leg., MJ. Dardón det., OLINZ, at

1450 masl. Madrid: Alcalá de Henares, 1 ♀, 13-VI-1909, Dusmet, J. leg., OLINZ; Arganda del Rey, 1 ♂, 17-V-

1933, Dusmet, J. leg., OLINZ; Casa de Campo, 1 ♀, 11-VI-1956, Templado, J. leg., MJ. Dardón det., UCM;

Cercedilla, 1 ♀, undated, Expedition of the Spanish Institute of Entomology, leg., MNCNM; Cerro Ortiyon, 1 ♀,

23-V-1979, P-Iñigo, C. leg., C.Pérez-Iñigo det., UCM; El Pardo, 2 ♀, 05-IV-1908, Dusmet, J. leg., MNCNM;

Embalse del Vellón, Sierra Lagos, 1 ♀, 11-V-1979, P-Iñigo, C. leg., F. Torres det., USAL; Escorial, 1 ♂, 03-IV-

1909, Mercet, Ga. leg., MNCNM; Madrid, 3 ♀, undated, Mercet, Ga. leg., MNCNM; Madrid, 1 ♂, 16-III-1902 / 2

♀, 30-III-1902 / 1 ♀, 08-VI-1936, Dusmet, J. leg., OLINZ; Paracuellos de Jarama, 4 ♀, 02-VI-1925, Dusmet, J.

leg., MNCNM; Ptd. Reventón, Carr. Cardevolas, 1 ♀, 13-VI-1979, C.Pérez-Iñigo det., UCM; Puerto de la

Morcuera, Subida, 10 ♀, undated, P-Iñigo, C. leg., C.Pérez-Iñigo det., UCM; P. Canencia, 1 ♀, 15-V-1979, P-Iñigo,

C. leg., C.Pérez-Iñigo det., UCM; Ptd. Navafría, 4 ♀, 04-VI-1979, P-Iñigo, C. leg., C.Pérez-Iñigo det., UCM; Río

Alberche, 1 ♀, 08-VII-1906 and 1 ♀, 28-V-1908, Dusmet, J. leg., MNCNM; San Agustín, 1 ♀, 08-VI-1912,

Dusmet, J. leg., MNCNM; San Fernando, 1 ♂, 12-IV-1909, Dusmet, J. leg., OLINZ; San Pedro, 6 ♀, undated, P-

Iñigo, C. leg., C.Pérez-Iñigo det., UCM; Sierra de Guadarrama, 1 ♀, 20-VI-1913, Dusmet, J. leg., MNCNM;

Torrelodones, 1 ♀, undated, Bolivar, C. leg., MNCNM; Vaciamadrid, 1 ♀, 30-IV-1909, Dusmet, J. leg., MNCNM;

C. Vellón, S. Lagos, 1 ♀, 29-VI-1979, P-Iñigo, C. leg., C.Pérez-Iñigo det., UCM; Villaverde, 1 ♂, 25-III-1907/ 1 ♀,

10-IV-1907 / 1 ♂, 18-IV-1909 / 1 ♀, 06-VI-1909, Dusmet, J. leg., OLINZ; Villaverde, 1 ♂, undated, Mercet, Ga.

leg., MNCNM; 1 ♂, 26-III-1912, Dusmet, J. leg., MNCNM; Villaviciosa, 2 ♀, 23-V-1912, Dusmet, J. leg.,

MNCNM. Málaga: Colmenar, 1 ♂, 18-VI-1917, Dusmet, J. leg., OLINZ; Yunquera, 40 Km. W., 1 ♀, 29-IV-2003,

Halada, J. leg., MJ. Dardón det., OLINZ, at 800 masl. Murcia: Cartagena, 25 Km. SW., 1 ♀, 12-V-2003, Halada, J.

leg., MJ. Dardón det., OLINZ; Cartagena, Mar Minor 30 Km., 2 ♂, 13-V-2003, Halada, J. leg., MJ. Dardón det.,

OLINZ; Sierra Espuña, 20 Km. SW, 5 ♀ and 3 ♂, 11-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ.

Salamanca: Béjar: El Molinillo, 1 ♂, 10-VII-1977, Gayubo, S. leg., USAL, Cementerio, 1 ♂ and 1 ♀, 24-VII-

1977, Gayubo, S. leg., MJ. Dardón det., USAL, at 920 masl; Carretera de Aldeacipreste, 1 ♂ and 2 ♀, 05-III-1978,

Gayubo, S. leg., MJ. Dardón det., USAL, at 780 masl; Navacarros, 2 ♀, 22-VII-1977, Gayubo, S. leg., MJ. Dardón

det., USAL, at 1140 masl; 1 ♂, 05-VII-1977, Gayubo, S. leg., MJ. Dardón det., USAL, at 1130 masl; San Martín

del Castañar, 1 ♀, 31-V-1999, no more data, MJ. Dardón det., USAL. Sevilla: 1 ♂, undated, Dusmet, J. leg.,


OLINZ. Soria: Martialay, 1 ♀, 18-VII-1989, García, J. leg., MJ. Dardón det., USAL; Rello, 1 ♀, 12-VI-1990,

García, J. leg., MJ. Dardón det., USAL. Tarragona: Tortosa, 40 Km. Cerca al Rio Ebro, 2 ♂, 16-V-2003, Halada,

J. leg., MJ. Dardón det., OLINZ; Tortosa, W 50 Km., 1 ♀, 20-III-1995, Bareŝ, J. leg., MJ. Dardón det., OLINZ.

Valencia: Reserva de Muela de Cortes, 80 Km. SW., 1 ♀, 14-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ;

Valencia Env., 4 ♀, V-1997, Stary, P. leg., MJ. Dardón det., OLINZ. Valladolid: Castronuño, 1 ♀, 27-VII-1988,

Heras, C. leg., MJ. Dardón det., USAL; Fuente del Sol, 1 ♀, 06-VI-1994, P. Ornosa leg., MJ. Dardón det., UCM;

Tordesillas, El Vivero, 1 ♂, 15-31-V-2005, Gayubo, S. leg., MJ. Dardón det., USAL; 1 ♂, 1-15-VI-2005, Gayubo,

S. et al. leg., MJ. Dardón det., USAL; Viana de Cega, 1 ♀, 14-VI-1993, Entomology, USAL leg., MJ. Dardón det.,

USAL; Zamadueñas, 3 ♀, 24-VI-1993 and 6 ♀, 05-VII-1993, Entomology, USAL leg., MJ. Dardón det., USAL.

Zaragoza: Pina de Ebro, 1 ♀, 17-III-1990, Blasco, J. leg., MJ. Dardón det., USAL, at 1259 masl; 5 ♀, 11-IV-1992,

Blasco, J. leg., MJ. Dardón det., USAL, at 4572 masl; 4 ♀ and 6 ♂, 25-III-1991, Blasco, J. leg., MJ. Dardón det.,

USAL, at 2837 masl; 1 ♀, 25-III-1991, Blasco, J. leg., MJ. Dardón det., USAL, at 2846 masl; 1 ♀ and 5 ♂, 09-III-

1991, Blasco, J. leg., MJ. Dardón det., USAL, at 2758 masl; 1 ♀, 09-IV-1991, Blasco, J. leg., MJ. Dardón det.,

USAL, at 2901 masl; 1 ♂, 25-II-1990, Blasco, J. leg., MJ. Dardón det., USAL, at 1202 masl. Portugal: Faro: Bela

Vista, 1 ♀, 09-VII-1967, Diniz, M. A. leg., OLINZ. Lisboa: Caparica, 1♀, 08-III-1953, d´Andrade, N. F. leg.,

OLINZ.

Andrena curtula Pérez, 1903

Lectotype:Spain: Barcelona, 1 ♀, 1915, Pérez, J. leg, MPARIS. Other material:Iberian Peninsula:Spain:

Salamanca: Villarubias, 3 ♀, 19-VI-1987, Torres, F. leg., F. Gusenleitner det., USAL. Valladolid: Viana de Cega,

1 ♀, 27-VI-1993, González, J. leg., F. Gusenleitner det., USAL. Portugal: Guarda: Covao de Ametade, 1♀, 24-

VI-1987, Torres, F. leg., F. Gusenleitner det., USAL; Penhas Douradas, 4 ♀, 26-VI-1987, Torres, F. leg., F.

Gusenleitner det., USAL; Ponte de Cabaco, 1 ♀, 24-VI-1987, Torres, F. leg., F. Gusenleitner det., USAL; Vale de

Rossim, 5 ♀, 24-VI-1987, Torres, F. leg., F. Gusenleitner det., USAL.

Andrena pauxilla Stöckhert, 1935

France: Nantes: Loire, 1 ♂, 1911, MPARIS.

Andrena spreta pauxilla

Iberian Peninsula:Spain: Cáceres: Baños de Montemayor, 1♀, 01-V-1943, Dusmet, J. leg., MNCNM, at 738

masl. Ciudad Real: Pozuelo de Calatrava, 1 ♀, undated, La Fuente leg., MNCNM. Córdoba: El Soldado, 1 ♀,

undated, Seyrig, A. leg., MNCNM. Madrid: Madrid, 2 ♀, 30-III-1902, Dusmet, J. leg., MNCNM; Ribas, 2 ♀, 02-

V-1901 and 1 ♀, 23-V-1909, Dusmet, J. leg., MNCNM; Villaverde, 2 ♀, 03-IV-1926, Dusmet, J. leg., MNCNM.

Salamanca: Hinojosa de Duero, 1 ♀, 15-V-1980, Gayubo, S. leg., USAL; Topas, 1 ♂, 02-III-1980, Gayubo, S.

leg., MJ. Dardón det., USAL, at 820 masl. Valladolid: Sardón de Duero, 1 ♀, 29-VI-1984, Asensio, E. leg., USAL.

Zamora: Mayalde, 1 ♀, 08-VII-1984, Gayubo, S. leg., USAL. Zaragoza: Fuente Sauco, 1 ♀, 11-VI-1983,

Gayubo, S. leg., USAL

Andrena (Micrandrena) spreta pusilla (Pérez, 1903)

Andrena pusilla Pérez 1903:85 (Lectotype examined)

Andrena pseudasuniensis Strand 1921:289

Diagnosis. The female has a length between 6 and 7 mm. The clypeus is convex with a microsculpture that is shiny

in the middle area. It has strong, defined, and scarce PPs in the lower zone, and is smaller than in the nominal

subspecies, E=1–3. In the mesosoma, the entire scutum has a dull microsculpture, with small and fine PBHs,

E=1–4. The scutellum is shinier than the scutum, with fine and obvious PPs over smooth integument on the front.

The basal area of propodeum has fine ornamentation and a more defined propodeal triangle than in A. spreta

spreta. The hind legs have only a white pubescence. The metasomal terga are shiny with a weaker microsculpture

than in the other subspecies, which sometimes does not appear. The sterna has PPs that are stronger than in A.

spreta spreta.

The male has a length between 5 and 6 mm. The clypeus appears to be very bright, with the base and sides


having a microsculpture and PPs like those in the female. The process of labrum is almost quadratic. The face has a

whitish pubescence, although occasionally there are some long and abundant black hairs intermingled within it.

Some individuals are bright in the middle zone of the scutum and in the front of the scutellum, while the scutum

has fine and scarce PPs, E=3–8 (Stöckhert (1935) suggested that this may not be apparent). The mesepisternum has

a dark pubescence in the first generation, while in the second it is whitish-gray. The metasoma is lanceolate, with a

microsculpture that is slightly stronger than that of the female; therefore, the PPs become more difficult to

distinguish. The marginal zones are more marked than in the female, and in both sexes of the nominate subspecies.

Comment. Andrena spreta Pérez, 1895, Andrena curtula Pérez, 1903, Andrena pauxilla Stöckhert, 1935, and

Andrena pusilla Pérez, 1903, are classified by several authors as a complex group because of the large variability in

their characteristics. For this reason is necessary to pursue an exhaustive study with an emphasis on individuals in

southern Europe (Warncke 1967; Gusenleitner 1984; Dylewska 1987; Schmid-Egger & Scheuchl 1997;

Gusenleitner & Schwarz 2002).

In the Iberian Peninsula, there are two main complications with A. spreta. The first is related to A. pusilla,

which according to Pérez (1903), is a species present in Spain, however the date mentioned is uncertain. Warncke

(1967) indicated that this species corresponds to a subspecies of A. spreta, but without providing features to support

his remark. Dylewska (1987) and Schmid-Egger and Scheuchl (1997) support it as a valid species, although the

characteristics used by these authors to differentiate between species are not categorical. After the study of the

lectotype of A. pusilla, similar features are evident with A. spreta, especially the microsculpture of the metasomal

terga that is unique in A. spreta.

In agreement with the material examined, A. pusilla has finer and smaller PPs in the clypeus, scutum,

scutellum, and metasoma. This characteristic was named by Dylewska (1987) and Schmid-Egger & Scheuchl

(1997), and it remains constant and useful for distinguishing A. spreta. However, because this is the only feature

that has been found, it is insufficient to determine two different species; therefore, A. pusilla should be considered

a subspecies of A. spreta, and should be named A. spreta pusilla. Is possible that A. spreta pusilla is present in this

region, although at the moment it is only reported on the record of Pérez.

The second complication is related to A. pauxilla. Dylewska (1987) and Schmid-Egger and Scheuchl (1997)

indicate that it is a valid species, while Warncke suggests that it is a subspecies, "A. spreta pauxilla," in agreement

with the data from the specimens identified by this author in the collection of the MNCNM. After comparing the

descriptions found in the literature and a review of the individuals studied, it is possible to say that A. pauxilla and

A. spreta pauxilla do not have morphological differences, and for this reason it is not possible to define them as

separate. Although the specimens recognized as A. spreta pauxilla by K. Warncke have, as a rule, yellow

pubescence and PPs in the scutum that are bigger and rough, they are found in intermediate forms. Therefore, A.

spreta pauxilla should be considered a synonym of A. spreta, as in A. curtula and A. pauxilla (Westrich & Dathe

1997).

This work was done principally with individuals from the Iberian Peninsula, although A. spreta has a wide

distribution, therefore, we recommend employing other techniques of identification, using specimens from more

regions, to define the taxonomic status of this group.

Specimens examined.

Andrena spreta pusilla Pérez, 1903

Lectotype: France: Nantes, 1 ♀, 1911, Pérez leg., MPARIS. Paralectotype:France: Royan, undated, 1 ♀,

OLINZ, No. 508. Other material:Germany:Baden-Württemberg: Karlsruhe, 1 ♀, 23-III-1928, Hohndorf leg.,

OLINZ. Bavaria: Erlangen, 1 ♀, 10-VII-1932 / 1 ♀, 9-VII-1937 / 1 ♀, 10-V-1938, Stöckhert leg.,OLINZ. Hesse:

Darmstadt, 1 ♀, 17-V-1927, Meyer leg., OLINZ; Darmstadt, 1 ♀, 6-V-1930, Meyer leg. Stöckhert det., OLINZ.

North Rhine-Westphalia: Krefeld Rh., 1 ♀, 19-VI-1920, Brink leg., OLINZ. Unknown locality:Hausbergen, 1

♀, 21-IV-1935, Klein, M. leg., OLINZ in Euphorbia L. [Euphorbiaceae]; 1 ♂, undated, Stöckhert leg., OLINZ, No.

2776.

Andrena (Micrandrena) strohmella Stöckhert, 1928

Andrena strohmella Stöckhert 1928:244


Diagnosis. Individuals of this species are easily recognized by the weak fold on each side of T1, and by the dense

and yellow pubescence of the body.

Comment. A. strohmella is easily recognized by the lateral fold of T1, a feature absent in other species of the

subgenus Andrena (Micrandrena) from the Iberian Peninsula. Previously, A. strohmella was reported only in

northwestern France; however, with the specimen from Tarragona, Spain, the distribution is now widened to the

Iberian Peninsula. The individual from the Iberian Peninsula presents an facial fovea that is slightly shorter than the

other individuals of A. strohmella that have been examined, although, the lateral folds of T1 are evident and

certainly correspond to this species.

Specimens examined. Iberian Peninsula:Spain: Tarragona: Alcanar, 1 ♀, Kadlec, J. leg., V-2002, MJ.

Dardón det., OLINZ. Other localities:Germany: Baden-Württemberg: Kehl a.Rh., 1 ♀, 1-IV-1937, Balles, L.

leg. OLINZ; Legelshurst, 1 ♂, 1-IV-1939, Balles, L. leg., OLINZ. Bavaria: Abbach a.D., 2 ♀, 18-V-1943, Fritz, L.

leg. OLINZ; Bayern, WUG., 1 ♀, 6-V-1990, K. Warncke leg. OLINZ; Bayern, KEH., 1 ♀ and 1 ♂, 15-IV-1991, K.

Warncke leg. OLINZ; Erlangen, 1 ♀, 8-VI-1935 / 1 ♂, 7-V-1951 / 1 ♂, 26-III-1953, Stöckhert leg. OLINZ;

Pappenheim, 1 ♂, 7-IV-1928 / 1 ♂, 12-V-1931, Stöckhert leg., OLINZ. Saxony: Wimenbol, Freiberg/Br., 2 ♀, 12-

V-1965, Gaess leg. OLINZ; Wimenbol, Freiberg/Br., 21-III-1966, 1 ♂, Gaess leg. OLINZ. Thuringia: Jena, 1

♀,21-IV-1930, Meyer, OLINZ. Austria: Upper Austria: Linz, Umgebg. A.s., 1 ♀, 1961, Priesner, H. leg., OLINZ;

Linz, Pfesching, 1 ♂, 8-IV-1961, Schwarz, M. leg., OLINZ. Tyrol: Handl., 1 ♂, 14-IV-1984, Grünwaldt? leg.,

Grünwaldt det., OLINZ. France: Bas-Rhin: Sarre-Union, 1 ♂, 12-IV-1967, OLINZ in Prunus espinosa L.

[Rosaceae]. Italy: Verona: L-Mt.Baldo, 1 ♂, 19-V-1986, Gsorache? Leg., OLINZ. Unknown locality: Busenbach,

17.IV.1929, 1 ♂, Hohndorf leg., OLINZ;Versailles, 1 ♀, 27-IV-1964 and 1 ♂, 26-III-1968, Sacy leg., OLINZ.

Andrena (Micrandrena) subopaca Nylander, 1848

Andrena subopaca Nylander 1848:221

Diagnosis. Individuals of this species are characterized by an extensive process of labrum that occupies, at its base,

about 0.5 of the lower margin of the clypeus. The scutum shows a dull microsculpture and shallow PPs. The

metasoma has inconspicuous PPs.

Specimens examined. Iberian Peninsula:Spain: Segovia: Valsain, Navalpino, 1 ♂, 06-VI-1979, C. P-Iñigo

leg., MJ. Dardón det., UCM. Other localities: Germany: Bavaria: Allgäuer, Alpen, Umg. Oberstdorf, 1 ♀, VII-

1949, Stöcklein, F., leg., Grünwaldt, W. det., OLINZ; Dachau, 2 ♂, 27-IV-1963 / 3 ♀, 02-VI-1963 / 1 ♂, 05-IV-

1964 / 1 ♂, 19-IV-1964 / 1 ♀ and 1 ♂, 15-V-1980 / 2 ♀, 23-V-1980 / 4 ♀, 11-VI-1980, Warncke, K. leg., OLINZ;

Erlangen, 1 ♂, 5-V-1916 / 3 ♂, 07-V-1928 / 1 ♂, 12-VI-1932 / 1 ♂, 15-V-1937, Stöckhert leg., OLINZ; Garching,

1 ♀, 13-VI-1963, Warncke, K. leg., OLINZ; Munich, Herzogspark, 1 ♀, 25-V-1944, Stöcklein, F., leg., Grünwaldt,

W. det., OLINZ; Pappenheim, 1 ♂, 5-V-1928 / 4 ♂, 5-V-1933, Stöckhert leg., OLINZ. Starnberger: Seegebiet, 1

♀, 05-VI-1942 / 1 ♀, 31-VII-1943, / 1 ♀, 12-VI-1944, / 1 ♀, 10-V-1950, Stöcklein, F., leg., Grünwaldt, W. det.,

OLINZ; Seegebiet, Mühital, 1 ♀, 06-VI-1948, Stöcklein, F., leg., Grünwaldt, W. det., OLINZ; Starnberger, 2 ♀, 11-

V-1940 and 1 ♀, 06-VI-1940, Stöcklein, F., leg., Grünwaldt, W., det., OLINZ; Starnberger, 1 ♂, 18-V-1939,

Stöcklein, F., leg., Stöcklein, F. det., OLINZ. Saxony-Anhalt: Naumburg, Saaletal, 1 ♂, 15-IV-1946, Blüthgen

leg., Blüthgen det., MBERLIN. Etiopia: Dajet, 1 ♀, 11-IV-1973, Perez, M. leg., MJ. Dardon det., UCM. Greece:

Florina (N. Museum Leidem), 1 ♂, 05-V-1971, Vecht, J., leg., OLINZ, in Veronica chamaedrys L.

[Plantaginaceae]. Hungary: Budapest, 1 ♀, VI-1927, Stöckhert leg., OLINZ.

Andrena (Micrandrena) tenuistriata Pérez, 1895

Andrena tenuistriata Pérez 1895:44 (Lectotype examined)

Andrena pilosella Destefani 1889:207

Diagnosis. Individuals of this species are characterized by an facial fovea that is clearly narrowed in the lower half.

The integument of the body looks weak. The scutum and scutellum have scarce and shallow PPs that are

intermingled with the microsculpture.


Redescription based on lectotype. Female: Body length 7–8 mm. The body has a dark brown integument.

There is a scarce pubescence that is whitish to yellowish-white in color.

Head: The genal area, frons, paraocular area, and supraclypeal area have a shiny microsculpture. On the genal

area, the hypostoma has thin, large, and separated striations. The frons and paraocular area also have fine striations,

and under the facial fovea, the smooth, shiny integument has PPs. The area bounded by the apical margin of

compound eye, the lateral ocellus, and the top edge of the occiput have a microsculpture and obvious PBHs. The

facial fovea is long, clearly exceeding the lower edge of the antennal socket, and it is narrowed in the lower half.

The facial fovea has a velvety pubescence that is dark in color (with artificial light it appears whitish-iridescent).

The antennae are brown, although towards the apex they are paler, A3≈A

4+A

5. The clypeus is convex, and slightly

flattened at the center, with an absent microsculpture and shiny integument in the apical area. The top has shallow

PPs that become coarse toward the lower region, E=1–3. The process of labrum is black, wider than it is long, and

surrounded by yellow hairs. The head has a whitish pubescence equal in length to A1, but in the genal area and

paraocular area it becomes longer.

Mesosoma: The pronotum has a dull microsculpture, with PPs and a pubescence in the middle area. The

scutum and scutellum also have a microsculpture that is brighter in the middle zone. Both have observable, but

shallow PPs, except in the anterior region of the scutum where they are more dense and obvious, E=1–4. The

mesepisternum has a smooth microsculpture and bulky PBHs that are whitish and reach the length of A1, E=1–2.

The metanotum has a coarse-dull microsculpture with PPs. The propodeal triangle is defined with a central area

having a fine granular appearance, while about 0.3 of the top space has short and thick striations. The rest of the

propodeum has a microsculpture and small clear PBHs. The wings have a brown tone, and at rest they reach the

apex of the metasoma. The veins are brown in color. The legs are also brown, and the mediotarsus, distitarsus, and

tarsal claw are paler. There is a whitish pubescence, except on the inner side of the basal area of the tibia, which is

brown. The mesosoma has a short pubescence on the sides of the scutum, however, over the scutellum and

metanotum it is long and visible.

Metasoma: The metasomal terga have a fine, smooth, and shiny microsculpture, with small, obvious PPs that

are more evident on the sides (some individuals have more distinct PPs on the disc). The metasomal terga, at least

T2, have the same microsculpture as in the marginal zones. The marginal zones are not marked, and occupy 0.4

times the length of the terga, especially in T1 and T

2. The metasomal bands of whitish hair are exceptionally thin,

and in T2 and T

3 they are widely discontinuous, and less clear in T

4 (in some specimens they are imperceptible).

The disc has apical bands of hair covering the entire width of the terga that is scarce and interrupted at T2 and T

3,

while in T4 it is complete. T

5 is covered with a yellowish pubescence, whereas the sides have whitish hairs as in the

rest of the metasoma.

Male: Body length 5–6 mm. The integument is black with a brown metasoma and legs. The pubescence is

yellow-brown to yellow-gray, and the metasoma has scarce hair. In general, the male is similar to the female in

morphology.

Head: The frons and paraocular area have striations which are stronger than those of the female. The antennae

are thick and orange, with A3=A

5 but A

3<A

4+A

5. The clypeus is convex, not flattened in the center, and a little

shinier than in the lower zone, while the PPs are distinct and scarce, E=1–2.5. The process of labrum is small and

occupies, at its base, at least 0.25 of the lower margin of the clypeus, however, in some individuals it is slightly

higher. The head has a whitish-brown pubescence, the frons and genal area have some dark brown to black hairs,

and the lower part of the genal area has whitish hairs that are the length of A1.

Mesosoma: The scutum has a microsculpture that is less bright than in the female, and the PPs are weak and

small, E=1–4. The propodeum has clear PPs as in the mesepisternum, the latter of which has whitish dense hairs

that reach the length of A1. The wings at rest reach the apex of the metasoma. The legs are brown, but slightly paler

than the color of the head; however, the mediotarsus, distitarsus, and tarsal claw are orange. The legs have a whitish

pubescence, and the inner side of the basitarsus has yellow hairs. The scutum and scutellum have a whitish

pubescence intermingled with brown hairs.

Metasoma: The metasoma is shiny, with a smoother appearance than in the female. The PBHs are shallow,

from the T1, and very small with white hairs that are more evident than in the female. T

2 has a microsculpture that

is equal to the disc and marginal zone. The marginal zones are shorter than in the female, and the length is 0.3 times

the length of the terga. The metasomal bands of whitish hairs are the same as in the female, and are clear, narrow,


and widely discontinuous. The male genitalia have a simple constitution similar to that of Andrena minutula

(Kirby, 1802). The gonostylus is elongated and the penis valve reaches the maximal width of the gonostylus.

Comment. Gusenleitner & Schwarz (2002) redescribed this species and indicated, as one of the main

attributes, the shiny lower margin of the clypeus because of a weak or absent microsculpture. After reviewing a

large number of specimens, it can be noted that this characteristic appears in most of these specimens, although

some individuals show a microsculpture over the entire surface of the clypeus, and an absence of a particular

brightness in the lower extreme. Like Andrena abjecta Pérez, 1895, A. tenuistriata presents a morphology that is

different from the rest of the species of the subgenus Andrena (Micrandrena) in the Iberian Peninsula, and seems

close to the subgenus Andrena (Distandrena). However, the ornamentation with thick striations in the propodeal

triangle, the shape of the process of the labrum, and the morphology of the male genitalia correspond to the features

of Andrena (Micrandrena) and, therefore, should remain there.

Specimens examined.

Andrena tenuistriata Pérez 1895

Lectotype:France:Bord’, 1 ♀, undated, MPARIS, EY0000002011, Wildbienen Kataster 061024 scwe480.

Paralectotype:Spain: Barcelona, 1 ♀, undated, OLINZ. Other material:Iberian Peninsula: Spain: Alicante:

Alicante, 1 ♀, undated, Dusmet, J. leg., MNCNM; Arneva, 1 ♀, 02-IV-1934, Andréu leg., MNCNM. Almería:

Berja, 50 Km. W., 1 ♀, 21-28-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Las Negras, 50 Km., 7 ♂, 27-IV-

2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra Alhamilla, Lucainena, 7 ♀ and 1 ♂, 25-IV-2003, Halada, J.

leg., MJ. Dardón det., OLINZ; Sierra Alhamilla, 50 Km. E, Nijar, 4 ♀ and 1 ♂, 20-IV-2003, Halada, J. leg., MJ.

Dardón det., OLINZ; Sierra de María, 25 Km. W., Lorca, 9 ♀, 21-V-2003, Halada, J. leg., MJ. Dardón det.,

OLINZ; Sierra Filabres, 9 Km. E., Albánchez, 2 ♀, 23-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra

Filabres, Albánchez, 1 ♀, 23-IV-2003 / 1 ♀ and 1 ♂ 24-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Ávila:

Candeleda, 1 ♀, V-1941, Escalera, M. leg., MNCNM. Barcelona: Canet de Mar, 1 ♂, 28-III-19631 and 1 ♂, 22-III-

1965, Vergés, F. leg., OLINZ; Balenyá, 1 ♂, 15-V-1922, Villarubia leg., OLINZ. Cáceres: Hervas, 1 ♀, 29-IV-

1987, Barrios, J. leg., MJ. Dardón det., USAL. Cuenca: Cañizares, 1 ♀, undated, Selgas leg., MNCNM. Córdoba:

El Soldado, 1 ♀, 23-IV-1927, Seyrig leg., MNCNM; El Soldado, 2 ♂, undated, Seyrig leg., MNCNM. Granada:

Sierra Sagra, Santiesteban, 1 ♂, undated, Cabre, J. leg., MNCNM; Sierra Nevada, Lanjarón, 3 ♀, 04-V-2003,

Halada, J. leg., MJ. Dardón det., OLINZ. Huelva: Calañas, 1 ♀, 13-IV-1982, Schacht leg., OLINZ; Huelva, 1 ♀, V-

1927, Dusmet, J. leg., MNCNM; Huelva, 1 ♀, V-1927, Dusmet, J. leg., OLINZ. Madrid: Alberche, 1 ♀, undated,

Mercet, G. leg., MNCNM; Casa Campo, 1 ♀, 04-V-1963, Llorente, R. leg., MJ. Dardón det., UCM; Cerro San

Pedro, 1 ♀, 11-V-1979, P-Iñigo. C. leg., F. Torres det., USAL; Chamartín, 1 ♀, 23-III-1900 and 1 ♂, 05-IV-1901,

MNCNM; Collado Mediano, 4 ♀, 07-VII-1979, P-Iñigo. C. leg., C. P-Iñigo det., UCM; El Chaparral,

Navalafuente, 2 ♀, 18-V-1979, P-Iñigo. C. leg., C. P-Iñigo det., UCM; El Escorial, 1 ♀, 14-II-1942, Dusmet, J.

leg., MNCNM; El Escorial, 1 ♂, 25-IV-1933, Dusmet, J. leg., OLINZ; El Pardo, 1 ♀, undated, Gil, J. leg.,

MNCNM; El Pardo, 1 ♀, 05-IV-1908, Dusmet, J. leg., OLINZ; El Robledo de Orante, 1 ♀, 09-V-1979, P-Iñigo. C.

leg., C. P-Iñigo det., UCM; La Fortuna, 1 ♀, V-1928, Dusmet, J. leg., MNCNM; Los Molinos, 2 ♀, undated,

Mercet, G. leg., MNCNM; Madrid, 4 ♀, undated, Mercet, G. leg., MNCNM; Madrid, 1 ♂, 15-V-1915, Mercet, G.

leg., MNCNM; Montarco, 1 ♀, undated, Mercet, G. leg., MNCNM; Pedriza, Cerro Ortiyeso?, 1 ♀, 23-V-1979, P-

Iñigo. C. leg., C. P-Iñigo det., UCM; Rivas, 1♀, 01-V-1920, Dusmet, J. leg., MNCNM; Robledo de Chavela, 1 ♂,

09-V-1979, P-Iñigo. C. leg., F. Torres det., USAL; Sierra de Guadarrama, 1♀, 14-V-1919, Dusmet, J. leg.,

MNCNM; Villaverde, 1 ♂, 17-III-1906 / 1 ♀, 31-III-1908 / 1 ♂, 26-III-1912, Dusmet, J. leg., OLINZ; Villaviciosa,

2 ♀, undated, Escalera, M. leg., MNCNM. Málaga: Ronda, 20 Km. NE, 1 ♂, 30-IV-2003, Halada, J. leg., MJ.

Dardón det., OLINZ; Yunquera, 40 Km W., 5 ♀, 29-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ, at 800 masl.

Murcia: Cartagena, Mar Minor, 30 Km. E., 3 ♀ and 7 ♂, 13-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ;

Sierra de Espuña, 20 Km. SW, 1 ♀ and 1 ♂, 11-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Pontevedra:

Vigo, 1 ♀, 23-IV-1926 and 1 ♂, 25-IV-1926, Trautmann, W. leg., MNCNM. Salamanca: Bejar Ca. Aldeacipreste,

2 ♂, 04-II-1978 / 1 ♀, 05-III-1978 / 1 ♀, 13-III-1978, Gayubo, S.F. leg., MJ. Dardón det., USAL, at 780 masl.

Sevilla: Mar?, 1 ♀, 11-V-1995, Juísel? leg., MJ.Dardón det., OLINZ. Tarragona: Alcanar, 1 ♀, V-2002, Kadlec, J.

leg., MJ. Dardón det., OLINZ; Tortosa, 50 Km. W., 2 ♀, 20-III-1995, Bareŝ, J. leg., MJ.Dardón det., OLINZ.

Valencia: Bigastro, 1♀, 22-IV-1924, Andréu leg., OLINZ; Orihuela, 1 ♀, 01-III-1906, Dusmet, J. leg., MNCNM;

Orihuela, 1 ♀, 08-IV-1926, Andréu leg., OLINZ; Orihuela, Escalona, 1 ♀, 08-V-1926, Andréu leg., OLINZ.

Valladolid: La Armadilla, Cogeces del Monte, 1 ♂, 04-VI-1983, Asensio leg., USAL. Zamora: Toro, 1 ♀, 29-VI-


1982, Asensio leg., USAL; Zamora, 1 ♀, 23-VIII-1986, Unegaszo, M. leg., MJ. Dardón det., USAL. Zaragoza:

Pina de Ebro, 1 ♀, 02-IV-1989 / 1 ♀, 17-III-1990 / 1 ♀, 22-IV-1990 / 1 ♀, 20-II-1991 / 1 ♀, 09-III-1991 /1 ♀, 07-

V-1991 / 1 ♀, 20-III-1992 / 3 ♀, 10-IV-1992 / 3 ♀, 11-IV-1992, Blasco, J. leg., MJ. Dardón det., USAL; Zaragoza,

1 ♀, 09-III-1949 and 1 ♂, 28-IV-1933, OLINZ. Portugal: Lisbon: Lisbon, 1 ♂, 18-V-1952 / 1 ♀, 08-II-1953 / 1 ♀,

29-III-1953, Andrade, R. leg., OLINZ.

Andrena (Micrandrena) tiaretta Warncke, 1974

Andrena tiaretta Warncke 1974:38 (Holotype examined)

Diagnosis. Individuals of this species are characterized by the integument of the scutum having a dull

microsculpture, without obvious PPs. In the female, the marginal zones are little marked and broad, occupying 0.4

times the length of the terga. The male genitalia are unique among the species of the subgenus Andrena

(Micrandrena) in the Iberian Peninsula.

Redescription based on paratype. Female: Body length 6 mm. The integument is brown and the pubescence

is whitish to gray.

Head: The genal area has a clear microsculpture with a striated appearance in the apical half. The vertex also

has a dense microsculpture with a rough appearance. The frons and paraocular area have striated ornamentation

and are impunctate. The area bounded by the apical margin of the compound eye, the lateral ocellus, and the top

edge of the occiput has a microsculpture. The facial fovea is narrowed by 0.3 at its lower zone, with the top two

times wider than the bottom; additionally, it is covered with a short velvety pubescence of a whitish-grey and

iridescent color. The antennae are brownish-orange, and are slightly darker on the A1, A

3≈A

4+A

5. The clypeus is

more or less convex with the central area flattened, and has a dull microsculpture, with dense PPs, E=0.5, that are

more scattered in the central part, E=1–2, with an impunctate longitudinal line in the middle. The process of labrum

is surrounded by yellowish hairs, is longer than wide, and its base is widest at the apical part, occupying 0.25 of the

lower margin of the clypeus (a little smaller in some individuals). The head has a whitish-grey, plumose

pubescence that is not longer than the length of A1, except in the distal zone of the genal area where the hairs are

longer. In some paratypes, scarce brown hairs are present on the vertex and paraocular area, and in the lower

margin of the clypeus, there are some scarce long yellowish hairs.

Mesosoma: The whole pronotum has a dull microsculpture and PPs that are not clear but dense, E=1. The

scutum and scutellum are entirely covered with a dull microsculpture and shallow PPs that are densely arranged,

E=0.5–2, but in some individuals they are more scattered (resembles A. minutuloides, however, the space between

PPs is not bright). The mesepisternum also has a shiny microsculpture, with dense and bulky PBHs with whitish

hairs that reach the length of A1. The metanotum has a rough and impunctate microsculpture. The basal area of

propodeum is decorated with coarse striations, without a defined propodeal triangle but at about 0.2 of the

horizontal area to the posterior zone of the propodeum there is a fine granular sculpture. The rest of the propodeum

has a smooth microsculpture, and the PBHs are small, not bulky, and scarce, with simple hairs. The wings are

smoked, and at rest reach the apex of the metasoma. The veins are a pale brown, and the legs are a paler hue than

the rest of the body. The internal surface of the basitarsus has a yellow pubescence. The mesosoma has hairs that

are the same color as the body, and on the sides of the scutum and scutellum they are shorter.

Metasoma: T1 has a dull microsculpture, a fringe of hair on the sides, and is impunctate, without marginal

zones. T2–T

4 have a microsculpture (on the disc and the marginal zone) that is more dense at the base of the disc,

and the PPs are restricted to the sides of the disc, over the dorsolateral convexity. The marginal zones are lightly

marked, especially T2, where it is difficult to differentiate, and the depressions are wide and occupy 0.4 times the

length of the terga. The metasomal bands of whitish hair are widely discontinuous, and dispersed only in the apex

of the central part, while on the sides they are located throughout the length of the marginal zone.

Male: Body length 5–6 mm. The integument is dark brown. The pubescence is of a whitish color, and is more

or less dense. In general, the male is similar in morphology to the female.

Head: The antennae are dark brown, and the A3 is slightly longer than the A

5. The clypeus is as in the female,

but it is impunctate in the middle, without a longitudinal line (some specimens from Israel have a smooth

integument). The process of labrum is almost quadratic, with a weak notch in the central area, and occupying, at its


base, 0.3 of the lower margin of the clypeus. It is surrounded by slender whitish hairs. The pubescence of the head

is whitish and a little dense, with some brown hairs intermingled, especially in the paraocular area (in individuals

from Algeria and Spain the brown hairs also appear in the upper genal area, while in specimens of other regions

they do not exist). The lower zone in the genal area and clypeus has a whitish pubescence that is much longer than

the length of A1.

Mesosoma: The scutum is as in the female, but with more isolated and irregular PPs, E=1–7. In individuals

from Algeria and Spain, the scutum and scutellum have long brown hairs intermingled with a short pubescence.

The basal area of propodeum has ornamentation that is more delicate than in the female. The wings are as in the

female. The legs are brown, with the basitarsus, mediotarsus, distitarsus, and tarsal claw being paler with a whitish

pubescence, except on the inner side of the basitarsus, where it is yellow.

Metasoma: The metasoma is as in the female, with the posterior depressions being more marked than in the

female, although not as strongly as in the males of Andrena spreta Perez, 1985. The metasomal bands are scarce

and widely discontinuous in T2 and T

3, and almost complete in T

4. The male genitalia have a penis valve slightly

widened at the apex, while the gonostylus is clearly elongated.

Comment. This species is very similar to A. spreta but, in the case of the female, A. tiaretta has a larger

marginal zone and PPs that are not as obvious in the scutum. The male genitalia of A. tiaretta are completely

different than A. spreta.

Specimens examined. Holotype:Algeria: Tiaret, 1 ♂, undated, OLINZ. Paratype:Algeria: Algeria, undated, 1

♀, OLINZ; Algeria, 1 ♀, 24-V-1910, Bequaert, J. leg., OLINZ; Algeria, 1 ♂, 28-III-1890, OLINZ; Algeria, South,

undated, 1 ♂, OLINZ; Birmandreis, 1 ♂, 24-III-1910, Bequaert, J. leg., OLINZ; Foret de Baïnen, 1 ♀, 9-VI-1919,

Bequaert, J. leg., OLINZ; Noiseux - Oran, 1 ♀, 19-IV-1910, Bequaert, J leg., OLINZ; Oran, Sa Cruz, 1 ♀, 07-IV-

1910 / 1 ♂, 09-IV-1910, Bequaert, J. leg., OLINZ. Egypt: Hedjaz, 1 ♀, II-1937, Medina leg., OLINZ. Israel:

Ramleh, undated, 3 ♂ and 4 ♀, OLINZ. Libyia: Cirenaica, Cyrene, 1 ♂, 26-III-1954 / 1 ♀ and 1 ♂, 02-IV-1954,

Guichard, B., OLINZ. Morocco: Tánger, undated, 1 ♀ and 3 ♂, OLINZ; Fez. Dj. Zalagh., 1 ♂, 25.III.1923,

OLINZ. Syria: Damascus, 1 ♀, 02-V-1952. Seidenstücker leg., OLINZ. Other material: Iberian Peninsula:Spain:

Almería: Sierra Alhamilla, Lucainena, 1 ♀, 25-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Cadiz:

Algeciras, 30 Km. SW, Punta Tarifa, 1 ♀, 02-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Estepona, near the

river, 1 ♀, 1-11-IV-1985, Wolf, H. leg., OLINZ; Palomas, near Algeciras, 2 ♂, 7-IV-1985, Schacht, W. leg.,

OLINZ. Granada: Sierra Nevada, Env. Lanjarón, 9 ♀, 04-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ; Sierra

Nevada, Ohanes env., 3 ♀, 05-V-2003, Halada, J. leg., MJ. Dardón det., OLINZ. Málaga: Ronda, 20 Km. NE, 1 ♀

and 3 ♂, 30-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ, at 1000 masl; Yunquera, 40 Km W., 11 ♀ and 1 ♂,

29-IV-2003, Halada, J. leg., MJ. Dardón det., OLINZ, at 800 masl.

Conclusions

The subgenus Andrena (Micrandrena) in the Iberian Peninsula comprises small and, generally, very similar

morphological species, which could be difficult to discriminate between. It is widely distributed in the Iberian

Peninsula, with abundant species such as A. alfkenella, A. spreta, A. nana, and A. minutula, of which there are a

large number of citations. There also exist less abundant species like A. abjecta, A. falsifica, A. icterina, A.

saxonica, A. simontornyella, A. strohmella, and A. subopaca.

Some contributions to resolve taxonomic problems have been: a) Andrena abjecta and Andrena tenuistriata

presents morphology distant from other species of the Iberian Peninsula, however, after a comparison of the

material studied, we concluded that both species correspond to the subgenus Andrena (Micrandrena); b) Andrena

anthrisci is considered by different authors to be a valid species, but after reviewing the material studied, we

conclude that it is a synonym of Andrena semilaevis and Andrena saundersella; c) Andrena icterina is considered

in this work to be a valid species, discarding the uncertainty raised by Warncke (1974), who suggested that this

may represent a subspecies of Andrena strohmella; d) After the study of the individuals of Andrena spreta, Andrena

curtula, Andrena pauxilla, and Andrena pauxilla spreta, all are considered to be only one species, which is widely

distributed across Europe and North Africa as Andrena spreta; e) Males of some species of this subgenus are very

similar and can be confused, but the genitalia are a useful feature for identifying them.

This work extends the distribution of Andrena strohmella, previously cited only in northwestern France;

however, during the course of this work a specimen was identified in northeastern Spain. Furthermore, Andrena


floricola was previously reported to occur only in France; however, according to the data of the specimens

identified in this work, the distribution is extended to western Spain.

Acknowledgments

The authors would like to express their gratitude to Charles Michener, Michael Engel, Javier Ortiz Sánchez,

Jerome Rozen, Christian Schmid-Egger, Klaus Schönitzer, Osamu Tadauchi, and Ricardo Ayala for sharing

information about Andrenidae and their advice. They would like to thank Fritz Gusenleitner for his hospitality and

help in developing this work, as well as Claire Villemant at the Museum of Natural History in Paris, Frank Koch at

the Museum of Natural History of Humboldt University in Berlin, Amparo Blay at the National Museum of

Natural Sciences in Madrid, Fritz Gusenleitner at the Biology Centre of the National Museum of Upper Austria in

Linz, and Angeles Vázquez from the Collection of the Department of Zoology at the University Complutense in

Madrid for specimens. We would like to thank Erwin Scheuchl and Christian Schmid-Egger for allowing us the use

of their genitalia drawings. Also to Natalia Escobedo for the A. tiaretta drawing. The authors express their gratitude

for the editorial assistance received from Claus Rasmussen. Thanks are also extended to the anonymous reviewers

for their helpful comments. Finally, the authors would like to thank the Banco de Santander-Universidad de

Salamanca consortium for the grant awarded to María José Dardón to develop her doctorate studies at the

University of Salamanca.

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the subgenus andrena (micrandrena) (hymenoptera ... · andrena tenuistriata pérez, 1895 and...

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