Abstract:

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.