Species investigation and fauna analysis of butterflies in Ningbo district

This paper reported 164 species of butterflies belonging to 106 genera, 11 families collected in Ningbo district. Of them, there were 84 Oriental species, 8 Palaearctic species, 63 common species of Orient and Palaerctic, and 3 widespread species, accounting for 50%, 9.76% , 38.41% and 1.83% of total, respectively. Fauna analysis district showed that the butterflies property of Ningbo should belong to Oriental region and represents a transition from Oriental to Palaerctic region. They may be grouped into 21 distribution forms according to geographical distribution of insects in China and their fauna composition is relatively dispersive, only with 49 species (1/3 of total) being endemic to central China, south China and west China. 3 new records of Zhejiang are found in this investigation.