关键词: 有瓣蝇类, 物种多样性, 区系成分, 六盘山

Abstract:

Objective To survey the number of species, species diversity, and faunal characteristics of Calyptratae in Liupanshan National Nature Reserve of Ningxia, China. Methods The study was conducted by biodiversity analysis and insect taxonomy. Results There were 424 species, 180 genera, and 10 families of Calyptratae in the Liupanshan National Nature Reserve. Tachinidae, accounting for 53.33% and 43.16% of all known Calyptratae genera and species in this area respectively, were predominant at both genus and species levels. In terms of faunal distribution, there were 140 Palaearctic species, 192 Palaearctic and Oriental species, and 81 wide-distribution species which were distributed in three or more zoogeographic realms, accounting for 33.02%, 45.28%, and 19.10%, respectively, of all known species in this area. Besides, there were 6 indigenous species, accounting for 1.42%. The diversity indices at the genus and species levels were 1.48 and 1.57, respectively. Conclusion Species diversity and faunal diversity exist in Calyptratae in the Liupanshan National Nature Reserve of Ningxia. The faunal composition mainly includes Palaearctic and Oriental species, followed by Palaearctic species and other faunal components.

Key words: Calyptratae, Species diversity, Faunal component, Liupanshan