James Allen Litsinger. 1972. Bionomics of the Alfalfa Weevil, Hypera postica (Gyll.), in Southern Wisconsin. PhD Thesis, Department of Entomology, University of Wisconsin, Madison, February, 1972, 195 pages.

Part 5. Embryonic and larval thermal developmental thresholds and heat unit summations

Weevil development as affected by temperature, embryonic development, larval development, reared outdoors and in incubation cabinets, heat units, degree-day summations in relation to weevil periodicity in the field,