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Biology And Ecology Of Melanoplus Borealis (Orthoptera: Acrididae) In Fairbanks, Alaska With Special Reference To Feeding Habits, Tohko Kaufmann

The Great Lakes Entomologist

Overwintered Melanoplus borealis (subspecies, borealis Fieber) eggs hatched within 10-15 days in mid-June. The nymphs molted 5 times and became adults in about 45 days in nature. In both sexes, sexual maturity was attained about 3 weeks after emergence and oviposition started 8-10 days after sexual maturity.

M. borealis is primarily a forb feeder as its mandibular morphology indicates but it also developed and reproduced exclusively on Gramineae in the laboratory.

In the Fairbanks area, Alaska, these grasshoppers were found in sunny open fields where vegetation was short and sparse enough to allow sunrays to penetrate to the ground surface. …

Studies On The Feculae Of Selected Michigan Acrididae (Orthoptera), Michael Tyrkus, S.K. Gangwere

The Great Lakes Entomologist

Feculae have been used for some years in the study of insect food-habits and biology. Among the past authors who have used them are Frost (1928), Hodson and Brooks (1956), and Morris (1942), who discussed the use of feculae and frass in the identification of insect species in general; Boldyrev (1928), who figured the feculae of the bradyporine katydid Bradyporus multituberculatus; Brown (1937), who described in detail fecular microstructure in the spine-breasted grasshopper Melanoplus bivittatus; Weiss and Boyd (1 950. 1 952), who figured the feculae of representatives of selected insect orders; Gangwere (1 962). who described the …