Abstract: Objective This paper aims to provide insight into activities of Culicoides biting midges so that scientific measures can be taken to prevent epidemic of infectious diseases transmitted by midges. The population compositions and regular activity patterns of Culicoides midges in Zhoushan Jintang district of Zhejiang province were investigated. Methods Fifty-eight monitoring points were set up in the 600 meters of the surrounding areas of the port, the quarantine district, the livestock facilities and along the transport route. Light trap method was adopted and lights were kept on during the night time. Samples were collected in the early morning before sunrise, and species identification was conducted and specimens were prepared for collected biting midges. Results During the period from August 2016 to July 2017, a total of 2 378 samplings were conducted, 2 180 Culicoides midges were collected, of which 405 were males. The collections were identified as 15 species in 4 subgenuses:C. arakawai, C. fukienensis, and C. morisitai accounted for 40.00%, 28.81%, and 23.85% respectively. Population compositions were different in different areas. The midge activity season was approximately from May to October. The activity peak was found in summer, of which August and September were the most active periods. Conclusion The species of Culicoides midges showed biological richness in Jintang district of Zhoushan. The predominant communities were C. arakawai, C. fukienensis, and C. morisitai.

Key words: Ceratopogonidae, Culicoides, Population composition

摘要： 目的 为了解库蠓活动规律，科学防范库蠓传播疾病，对浙江省舟山市金塘地区库蠓种群基本构成和消长规律开展调查。方法 2016年8月至2017年7月，在港口、隔离场和养殖场周边600 m区域范围内以及运输路线的沿途道路共设置58个监测点，采用灯诱法诱捕库蠓，对捕获蠓类进行种类鉴定和标本制作。结果 共灯诱2 378点次，采获库蠓2 180只（雄虫405只），经鉴定包括库蠓属4个亚属15种。主要种群为荒川库蠓（40.00%）、福建库蠓（28.81%）和北京库蠓（23.85%），不同区域库蠓的主要种群组成有所不同。蠓的活动季节在5－10月，夏季出现高峰，其中8－9月最为活跃。结论 浙江省舟山市金塘地区库蠓种类丰富，其中荒川库蠓、福建库蠓和北京库蠓为当地主要种群。

关键词: 蠓科, 库蠓属, 种群构成