关键词: 蚊科, 组成与分布, 居民区, 怒江州

Abstract: Objective To know the composition and distribution of mosquitoes(Culicidae) in residential area in Nujiang prefecture, northwest of Yunnan province. Methods By using trap lamp, the investigation was carried out at 28 sampled sites in 16 villages in all 4 counties (Lanping, Lushui, Fugong and Gongshan ) in Nujiang prefecture (the altitude of these villages ranged from 900 to 2500 m). Results A total number of 91 262 mosquitoes were collected. They were identified to 35 species of 5 genera in 3 subfamilies. The five genera were respectively Culex (14 species), Anopheles (11 species), Aedes (7 species), Armigeres (2 species) and Uanotaenia (1 species). Culex tritaeniorhynchus occupied 70.60% and were distributed in all sampled sites; and Anopheles sinensis occupied 19.26% and were distributed in 27 sampled sites; while other 33 species were few, and most of them are distributed in a few sampled sites. Conclusion Cx.tritaeniorhynchus and An.sinensis are dominant species, and they are distributed widely in Nujiang prefecture. From south to north, the quantities of Cx.tritaeniorhynchus is gradually reduced, while the quantities of An.sinensis is gradually increased. Their quantity proportion predominated the diversity and density of mosquitoes in local areas.