中国黑鬃秆蝇属三新种(双翅目:秆蝇科)

NEW SPECIES OF MELANOCHAETA FROM CHINA(DIPTERA:CHLOROPIDAE)

本文记述了中国黑鬃秆蝇属 Melanochaeta 3个新种,分别是宽斑黑鬃秆蝇 M.gra-ndipunctata、北京黑鬃秆蝇 M.beijingensis 和浙江黑鬃秆蝇 M.zhjiagensis。

This report deals with three new species of the genus Melanochaeta Bezzi (Chloropidae, Diptera)from China. The types are kept in the Insect Collections of Beijing Agricultural University. 1.Melanochaeta grandipunctata Yang et Yang,sp.nov.(fig.1)Similar to M.um- brosa(Becker),but mesonotum yellow with a larger black marking.Scutell- um and postnotum black:wings hyaline without any markings. Holotype ♀,paratype 1♀,Beijing:Xi-Yuan,1975-Ⅲ-20,Yang Chi-kun. 2.Melanochaeta beijingensis Yang et Yang,sp.nov.(fig.2)Very similar to M.zhejiangensis sp.nov.,but wings hyaline with larger middlle markings. Mesonoturn yellow with a larger black marking.Scutellum and postnotum black. Holotype ♂,paratypes 4♂♂,Beijing:Xi-Yuan,1975-Ⅲ-18/Ⅳ1-01,Yang Chi-kun.Paratypes 2♂♂,Beijing:Xi-Yuan. 3.Melanocaeta zhejiangensis Yang et Yang,sp.nov.(fig.3)Very similar to M.beijingessis sp.nov.,but wings hyaline with smaller black markings at middle portion.Mesonotum yellow with a larger black marking.Scutellum and postnotum black.Holotype ♂,paratype ♂,Zhejiang:Choushan,1974-X -11,Li Fasheng.