摇蚊在各类水体中广泛分布且大量发生,在稻田生态系统中也有大量发生。目前我国关于稻田摇蚊的研究局限于种类描述和将摇蚊作为一类中性昆虫的调查。为了解稻田摇蚊的分布状况,利用笼罩对浙江省富阳市早稻田的摇蚊种类和动态进行了系统调查。结果表明,早稻田中共有4种摇蚊发生,分别是台湾长跗摇蚊(Tanytarsus formosanus)、中华摇蚊(Chironomus sinicus)、云足多集摇蚊(Polypedilum nubifer)和刺铗长足摇蚊(Tanypus punctipennis),均为常见种类,其中,前2种为稻田的优势种类。整个早稻大田期摇蚊发生量每1hm2可达4500万头,田间的摇蚊总体发生动态可分为前、后两个时期,前期发生数量大,后期发生数量小。优势种的发生动态也与总体动态相似,同时还发现台湾长跗摇蚊在稻田前期雌虫多于雌虫,而后期雄虫多于雌虫。中华摇蚊的雄虫数量在整个大田期均高于雌虫。 Chironomidae widely distributed in various types of water and occur in large quantities, in paddy ecosystems have also occurred in large numbers. At present, the research on Chironomidae in rice fields is limited to the description of species and the investigation of Chironomus as a kind of neutral insects. In order to understand the distribution status of Chironomus in paddy fields, we conducted a systematic investigation on the species and dynamics of Chironomid in the paddy fields in Fuyang, Zhejiang Province. The results showed that there were 4 species of Chironomidae in Waseda, including Tanytarsus formosanus, Chironomus sinicus, Polypedilum nubifer and Tanypus punctipennis) are the most common species, among which the first two species are the dominant species in paddy field. In the whole field of early rice, the occurrence of Chironomidae was up to 45 million heads per 1hm2. The overall occurrence of Chironomidae in the field can be divided into two stages before and after. The number of early occurrence was large and the number of late occurrence was small. The occurrence of dominant species was also similar to the overall dynamics. It was also found that there were more females than females in the early rice paddy stage and more male than in the latter. The number of male chironomus was higher than that of females throughout the field.