THE REGULATION OF CYCLIC REPRODUCTIVE AND FEEDING ACTIVITY IN THE MILKWEED BUG ONCOPELTUS BY TEMPERATURE AND PHOTOPERIOD

摘要: 1. Mating, feeding, and oviposition cycles were observed in the large milkweed bug, Oncopeltus fasciatus, under four regimens of varying temperatures 24-hour photoperiods.2. Mating feeding activity reached maximum at end light phase while occurred 8 hours after on.3. When placed continuous or dark, cyclic all three behaviors persisted for least one cycle case five cycles. In general, period first two activities, both was approximately 21 hours; subsequent cycles, if present, had periods 24 longer.4. Photoperiod found to affect mating which during day. Long photoperiods promoted higher levels than did short photoperiods.5. The time from eclosion photoperiod- as well temperature-dependent; longer shortened th...