Abstract: Objective To investigate and understand the fauna of mosquitoes in Tibet autonomous region. Methods Mosquito larvae of various breeding grounds in southeastern Tibet were investigated and sampled. Results Five species of the genus Armigeres were captured. They were Ar. subalbatus, Ar. seticoxitus, Ar. beisasi, Ar. flavus, and Ar. inchoatus. Among them, the latter four species were first found in Tibet. The main morphological characteristics, distribution area, breeding environment of the four newly recorded species and the morphology of the male terminalia based on the authentic specimens were described and reported. Conclusion Due to the relatively low altitude, abundant rainfall and complex climate and environment in southeastern Tibet, the species of the genus Armigeres are relatively rich. With the deepening of the fauna investigation, the species will undoubtedly increase further.

Key words: New record, Genus Armigeres, Xizang (Tibet) Autonomy

摘要： 目的 调查和了解西藏自治区（西藏）的蚊类区系。方法 2017年8－9月对藏东南地区各类型孳生地的蚊幼虫进行调查取样。结果 捕获阿蚊属5种，即骚扰阿蚊〔Armigeres （Arm.）subalbatus〕、毛抱阿蚊〔Ar.（Arm.）seticoxitus〕、贝氏阿蚊〔Ar.（Arm.） beisasi〕、黄色阿蚊〔Ar.（Lei.） flavus〕和白斑阿蚊〔Ar.（Lei.） inchoatus〕。其中，后4种蚊虫在西藏地区为首次发现，为当地的新纪录。该文将4个新纪录种的主要形态特征、分布区、孳生环境及其以实物作为凭证标本绘制的雄蚊尾器结构图等内容分别进行了记述和报道。结论 由于藏东南地区海拔相对较低、雨量充沛和气候环境复杂多样，阿蚊属的种类较为丰富，随着区系调查的深入，物种无疑还会进一步增加。

关键词: 新纪录, 阿蚊属, 西藏自治区