云南洱海水生双翅目昆虫区系初步分析

Faunal Preliminary Analysis of Aquatic Diptera in Erhai Lake of Yunnan

为弄清洱海水生双翅目昆虫特征,在查阅资料的基础上,对洱海水生双翅目昆虫区系进行分析。结果表明,洱海共有水生双目昆虫5科41种。在东洋区分布种36种,87.80%。但也有较多古北区成分,在古北区分布有25种,占60.98%,洱海水生双翅目昆虫东洋区特征显著,但具有明显的古北区特性,同时在其他动物区系也有一定分布。在中国动物区系中,西南区均有分布,但华中、华南和西南区共有成分较多,表明3个分布区关系密切,同时在其他区中也有一定分布。

In order to understand the character of aquatic diptera in Erhai Lake of Yunnan,based on literature review,the fauna was studied.The results showed aquatic diptera included 41 species of 5 families.Most species markedly presented the characters of oriental realm,but the characters of palaearctic realm was clear,36 and 25 species respectively in oriental realm and palaearctic realm.At the same time the fauna of world expressed some characters of nearctic realm,ethiopian realm and australian realm.In fauna of China,these species can be found in southwest region;central,south and southwest of China had more collective species than other zones at the same time.