Abstract: We reported a new species of the subgenus Stegomyia in the genus Aedes, Aedes (Stegomyia) mengduiensis sp. nov., collected from a discarded tyre near the government offices of Mengdui Township in Zhenkang County, Yunnan Province, China (98°53'31″E, 23°55'9″N) in February 2017. The main features of the new species include: incomplete white basal bands on the dorsal plate of the abdominal segments Ⅲ-Ⅵ; the white basal ring of tarsus 4 of the hind leg accounting for more than 3/4 of the total length of tarsus 4; female postgenital lobe with a posterior process at the median apex; males featuring a thick distimere with a marked enlargement at the apex and a claspette with a fan-shaped enlargement at the apex and numerous leaf-like spines and bristles. The morphology of the larvae is not significantly different from that of Ae. albopictus larvae. The type specimens were preserved in the museum of mosquito of Yunnan institute of parasitic diseases.

Key words: Diptera, Culicidae, Stegomyia, New species

摘要： 报道2017年2月在云南省镇康县勐堆乡政府驻地周围（98°53'31″E,23°55'9″N）的一个废弃轮胎中采集到的伊蚊属覆蚊亚属1新种：勐堆伊蚊[Aedes （Stegomyia） mengduiensis sp. nov]。新种主要鉴别特征为：成蚊Ⅲ～Ⅵ腹节背板基白带不完整,后跗节4基白环长为节4全长的3/4,雌蚊尾器生殖后叶后端中央凸起。雄蚊尾器抱肢端节粗壮,末端明显膨大,小抱器末端膨大呈扇状,具有众多叶状刺和刚毛。幼虫形态与白纹伊蚊幼虫无明显差别。模式标本保存于云南省寄生虫病防治所蚊类标本馆。

关键词: 双翅目, 蚊科, 覆蚊亚属, 新种