北京毛蠓属2新种记述(双翅目:蠓科)  

Description of two new species of the genus Dasyhelea(Diptera:Ceratopogonidae)from Beijing

作　　者：刘仰青[1] 虞以新 LIU Yangqing;YU Yixin(Nanchang Center for Disease Control and Prevention,Nanchang,Jiangxi 330038,China;Academy of Military Medical Sciences,Beijing 100071,China)

机构地区：[1]南昌市疾病预防控制中心,江西南昌330038 [2]军事科学院军事医学研究院,北京100071

出　　处：《中国热带医学》2025年第3期368-370,共3页China Tropical Medicine

摘　　要：目的 为进一步丰富北京市蠓类资源和种类,对北京市莲石湖湿地公园蠓类进行了调查采集,记述了北京市毛蠓属2新种。方法 2019年9月采用挥网法在北京市莲石湖湿地公园采集蠓类,标本于75%酒精中浸泡保存,标本制片后根据其触须、尾器形态特征等进行鉴定。结果 共采集到毛蠓属蠓类5种,包括异奇毛蠓(Dasyhelea extraneus Liu et Yu, sp.nov.)和双棒毛蠓(D. bibacula Liu et Yu, sp. nov.)2新种。2新种主要鉴别特征:异奇毛蠓尾器第9腹板后缘中部有1瘤状突,阳基侧突愈合成1条有短小中突的骨条,阳茎中叶具有明显的中突;双棒毛蠓尾器背板后缘圆钝形,阳茎中叶状似笔架,2侧枝端部弯曲呈拳状,阳基侧突中突端部圆钝。结论 本研究描述了北京市毛蠓属2新种,丰富了北京市蠓类资源。新种模式标本现保存于南昌市疾病预防控制中心。Objective To further enrich the resources and Ceratopogonidae species in Beijing,an investigation and collection of biting midges in Lianshihu Wetland Park,Beijing,were carried out,leading to the description of two new species of the genus Dasyhelea in Beijing.Methods In September 2019,biting midges were collected in Lianhu Wetland Park,Beijing,using the net sweeping methods.The specimens were preserved in 75%alcohol for identification according to their morphological characteristics such as antennae and terminalia.Results A total of five species of biting midges belonging to the genus Dasyhelea were collected,including two new species:Dasyhelea extraneus Liu et Yu,sp.nov.and D.bibacula Liu et Yu,sp.nov.The main distinguishing characteristics of the two new species are as follows:In Dasyhelea extraneus,there is a tuberculate process in the middle of the posterior margin of the ninth sternite of the terminalia,the parameral lobes are fused into a bony strip with a short median process,and the aedeagal mesophallus has an obvious median process.In Dasyhelea bibacula,the posterior margin of the tergite of the terminalia is bluntly rounded,the aedeagal mesophallus is penholder-like,the ends of the two lateral branches are curved and fist-like,and the end of the median process of the parameral lobe is bluntly rounded.Conclusions This study describes two new species of the genus Dasyhelea in Beijing,enriching the midge resources in Beijing.The type specimens of the two new species are currently preserved at Nanchang Center for Disease Control and Prevention.

关 键 词：蠓科 毛蠓属 新种 北京市 

分 类 号：R384.9[医药卫生—医学寄生虫学]