Three New Species of the Genus Mydaea From Sichuan, China (Diptera : Muscidae)
Author of the article:FENG Yan1, DENG An-xiao2
Author's Workplace：（1. Sanitary and Anti-epidemic Station of Yaan City, Yaan, Sichuan Province, 625000, China; 2. Faculty working office of Parasitology, West China Medical University, Chengdu 610041, China）
Key Words：Diptera; Muscidae; Mydaea; new species; China
Abstract： In this paper three new species of Mydaea R.-D., 1830 from mountainous region of western Sichuan Province, China collected during 1984～1989 are described. All the type specimens are kept in the 2nd author’s laboratory.
1. Mydaea emeishanna sp. nov. (Fig.1) ♂: Body length 6.5 mm. Closely related to Mydaea minor Ma et Wu, 1986, but differs from the latter in: Arista long plumose, the longest aristal hairs about twice as long as the width of 3rd antennal segment; stpl 2:2; hind femur without pv bristle; cerci of male slightly straight and flat on distal margin in caudal view. ♀: Unknown. Holotype: ♂, Mt. Emei (Hongchunping, 1120 m; 29º44’N, 103º31’E), Sichuan Province, May 20, 1984, taken by Deng An-xiao.
2. Mydaea jubiventera sp. nov. (Fig.2) ♂: Body length 6.0 mm.Closely related to Mydaea laxidetrita Xue et Wang, 1992 from Shanxi Province, but differs from the latter in: Arista short plumose, the longest aristal hairs about one-third as long as the width of 3rd antennal segment; hind femur devoid of pv bristle; surstyli of male straight on apical part in lateral view; cerci on distal mrgins round. ♀: Unknown. Holotype ♂, Maowen (Sanlong, 2800 m; 31º42’N, 103º52’E), Sichuan Province, Sept. 9, 1989, taken by Deng An-xiao.
3. Mydaea jiuzhaigouensis sp. nov. (Fig.3) ♂: Body length 70 mm.Closely related to Mydaea subelecta Feng, 2000, but differs from the latter in: Palpus black; mid femur with a complete row of long bristles on av surface; lateral lobe of 5th sternite about 0.5 times as long as its basal part; length of surstyli of male distinctly longer than length of cerci in lateral view. It is also closely related to Mydaea electa (Zett., 1860), but differs from the latter in: 3rd antennal segment about 3.5 times as long as broad; femora dark to black; abdoment dark and without shifting spots. ♀: Unknown. Holotype ♂: Nanping (Jiuzhaigou, 2300 m; 33º21’N, 104º14’E), Sichuan Province, July 10, 1986, taken by Deng An-xiao.