云南洱海水生鞘翅目昆虫区系分析

Faunal Analysis of Aquatic Insects of Coleoptera in Erhai Lake of Yunnan

为弄清洱海水生鞘翅目昆虫特征,在实地调查和查阅资料的基础上,对洱海水生鞘翅目昆虫区系进行了分析。结果表明,洱海共有水生鞘翅目昆虫4科23种,水生鞘翅目昆虫东洋区特征极显著,东洋区分布种22种,其中仅在东洋区分布的有8种,分别占95.65%和34.78%。但也有较多古北区成分,东洋-古北共有种有10种,占43.48%;同时在其他区也有一定的分布。在中国动物区系中,西南区均有分布,但华中、华南和西南区共有种也较丰富,表明3个分布区关系密切。

In order to clarify the character of aquatic insects belonged to Cloptera in Erhai Lake of Yunnan,based on field investigation and literature review,the fauna of insects was studied.The results showed that aquatic insects of Cloptera included 23 species of 4 families.Most species markedly presented the characters of oriental realm,and 22 and 10 species respectively in oriental realm and oriental-palaearctic realm;and some species distributed in other realms.In fauna of China,these species could be all found in southwest region.And common species were abundant in central,south and southwest of China showing the close relationship of 3 regions.