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目的：观察云南大劣按蚊的生态习性、地理分布及其传疟作用。方法：现场调查、人诱等。结果：幼虫的主要滋生地为小型积水。成蚊以野栖性为主，野外诱捕率占８０％以上。人、牛诱捕量的比例为２１．５∶３，表明偏嗜人血。其季节消长与当地疟疾发病曲线相吻合。该蚊唾腺疟疾感染率为０．２９％。结论：该蚊是云南北纬２３．８°以南，海拔１０００ｍ以下热带森林与次森林地区重要的传疟媒介。
Objective: To observe the ecological habits, geographic distribution and malaria transmission of Anopheles dirus in Yunnan Province. Methods: site investigation, lure and so on. Results: The main breeding place for larvae is small hydration. Adult mosquitoes mainly wild, wild catching rate of more than 80%. Person, the proportion of cattle trapping amount of 21.5: 3, indicating that human blood deviated. Its seasonal fluctuation is in line with the curve of local malaria incidence. The mosquito salivary gland malaria infection rate was 0.29%. Conclusion: The mosquito is an important malaria vector in tropical forests and sub-forests in the area south of 23.8 ° north latitude and 1000m above sea level in Yunnan.