关键词: 蚊虫, 季节消长, 北湾地区, 额尔齐斯河下游

Abstract: Objective To study the season variety of mosquito at Beiwan region of the lower reach of the river Erqis,Xinjiang. Methods Using human-baited bed net method to collect mosquitoes in different habitats six times a day and once every ten days from April to September. Results The density of mosquitoes in the wood out of the camp court was the highest and that in the woods in the camp court and the desert out of the camp court was lower. Aedes vexans(90.18%-96.83%) was the dominant species in all the habitats. The amount of Aedes caspius(9.78%) in the desert was more than the other two habitats. The mosquitoes came to appear in the middle ten days of April and disappeared in the first ten days of September. The active peak was from June to July for mosquitoes at Beiwan. The curves of season distribution were different in distinct habitats for different species. Conclusion The density of mosquitoes was fairly high in all the three habitats,especially in the heavy wood and grass. The harm of mosquitoes was very serious from June to July at Beiwan region.