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1982年和1983年的4月底至5月初,在珍宝岛地区冻土层尚未完全解冻的草甸、林缘还积有余雪残冰之时,我们从五类生境中取土样108份,共孵出幼虫641条.其中刺扰伊蚊(Aedes vexans)占69.9%,刺痛伊蚊(Ae excrucians)占22.5%,而丛林伊蚊(Ae cataphylla)和普通伊蚊(Ae communis)只占很少比例.刺扰伊蚊卵分布于该区各类生境,但以林缘坑为最多,孵出幼虫数为孵出刺扰伊蚊幼虫总数的86.6%.上述几种伊蚊卵在表层土壤越冬,至初春雪融时开始孵化.1983年在蚊虫孳生地调查中,采获蚊幼虫17种,其中刺扰伊蚊、东方库蚊(Culex orientalis)和中华按蚊(Anopheles sin-ensis)数量较多,持续时间较长,而刺扰伊蚊孳生数量占三种蚊幼虫和蛹总数的84.9%.刺扰伊蚊在各类生境中均有孳生,但以林缘坑为最多,占各类生境采获幼虫和蛹总数的88.7%.东方库蚊和中华按蚊除岛上外其它生境均有采获.东方库蚊在林缘坑中孳生较多,占其采获幼虫总数的70%以上.中华按蚊幼虫在营区周围水坑中孳生较多,占其采获幼虫总数的53.7%.
From the end of April to the beginning of May of 1983 and the beginning of May 1983, at the meadow where the permafrost has not yet been fully thawed in the Zhenbaolingao area, we also took 108 samples of soil from the five habitats 641 larvae were hatched, of which Aedes vexans accounted for 69.9% and Ae excrucians accounted for 22.5%, while Aeckaphylla and Ae communis accounted for only Less proportion of the mosquitoes were distributed in all kinds of habitats in the area, but the largest number of forest edge pit larvae were hatched mosquito larvae total number of 86.6% of the total number of these mosquito eggs in the surface soil Winter, and began to hatch when snow melted in early spring. In 1983, 17 species of mosquito larvae were harvested from mosquitoes breeding sites, of which mosquito, Culex orientalis and Anopheles sin-ensis More and last longer, while the number of breeding spurs of Aedes albopictus accounts for 84.9% of the total number of larvae and pupae of three mosquitoes.Espin mosquito breeding in all kinds of habitats, but the largest forest margin, accounting for In the habitats, 88.7% of the total larvae and pupae were harvested, while Culex tritaeniorhynchus and Anopheles sinensis were harvested in other habitats besides the island. And more, accounting for more than 70% of the total harvesting of larvae. Sinensis larvae in puddles around the camp in large breeding, harvesting accounts for 53.7% of the total larvae.