ヨツモンマメゾウムシの飛ぶ型の出現率に対する前世代成虫の影響

抄録

As the factors for inducing the flight form in the population of the southern cow pea weevil, Callosobruchus maculatus, the influence of such parental conditions as old or young and early developed or late developed were examined. Percentage of emergence of the flight form was higher when the eggs from the late developed adult were used. The eggs deposited by rather older adults were apt to develop into the flight form. These results elucidate the findings mentioned in the previous papers (UTIDA, 1965 ; SANO, 1967) that (1) the flight form emerges at the later part of the emergence curve, and (2) the larvae at the younger stage is transformed into the flight form by the rise of temperature in the heap of beans caused by the metabolic activity of the fully grown larvae.