骚扰阿蚊生物学的实验室研究

LABORATORY STUDIES ON THE BIONOMICS OF ARMIGERES SUBALBATUS (COQUILLETT)

选育采自上海的骚扰阿蚊实验室品系,成蚊可在26×20×20cm蚊笼内饲养繁殖。该品系蚊虫在实验室养殖条件下:卵、幼虫及蛹期分别为4.02天、9.79天和3.99天。孵化、化蛹及羽化率分别为80.25％、82.66％和97.42％。成蚊的性比为1.00。喂糖水雌蚊、喂鼠血雌蚊和雄蚊的寿命分别为29.27天、61.96天和28.75天。成蚊一生平均产卵1.4次,每蚊平均产卵163.28粒。各变态期转换时间具有明显的昼夜节律,孵化和羽化主要在白昼而产卵,蜕皮及化蛹集中在黑夜。

The laboratory, colonization of Armigeres subalbaius in Shanghai district has been establish-ed. The development of the whole life cycle and the circadian rhythms of its activity were investigated.Under our laboratory conditions (T: 25±1℃, RH:,,75±10%, LD: 12:12 hrs), the developmental period of the egg stage was 4.02 days in average, the larva stage 9.79 days and the pupa stage 3.99 days. The period of larva stage of the female (9.93 days) was statistically longer than that of the male (9.63 days). The rates of hatching, pupation and eclosion were 80.25%, 82.66% and 97.42% respectivelly. The sex ratio was approximately 1: 1. When the adult mosquitoes were fed on sucrose solution, there was no significant difference between the longivities of females (29.27 days) and males (28.75 days). However, as the females fed on mice, they could live for 61.96 days, which were evidently longer than those fed on sucrose. In average each female oviposited 1.4 batches of eggs and the total number bf eggs was 163.28 in its lifetime. During its post-embryonic development, it is evident that Armegeres sitbalbatus displays distinct circadian rhythms in egg-hatching, larvae-moulting, pupating, emergence and ovipositing. The hatching and eclosion mainly occurred in daytime, and oviposition, moultion and pupation, at night.