中国阳蝇属四新种(双翅目,蝇科)

FOUR NEW SPECIES OF THE GENUS HELINA R.-D. FROM CHINA (DIPTERA,MUSCIDAE)

记述蝇科Muscidae棘蝇亚科Phaoniinae中的阳蝇属Helina Robineau-Desvoidy,18304新种:西北阳蝇H.borehesperica sp.nov.,兴凯阳蝇H.xingkaihuicasp.nov.,毛尾阳蝇H.dasyouraea sp.nov.和锐叶阳蝇H.acocerca sp.nov.。模式标本保存于军事医学科学院微生物流行病研究所医学昆虫标本馆。

The present paper describes and illustrates four new species of the genus Helina Robineau-Desvoidy,1830 from China,i.e.Helina borehesperica sp.nov.,H.xingkaihuica sp.nov.,H.dasyouraea sp.nov.and H.acocerca sp.nov.The type specimens are deposited in the Medical Entomological Collection,Institute of Microbiology and Epidemiology AMMS,Beijing,China.1 Helina boreheaperica sp. nov. （Figs.1-4） Tills new spedes resembles H. harbinensis Zhang et Ma, 1997. but can be distinguished from the latter by the following characters： 1 ） abdomen black dark wholly on syntergite 1 ＋ 2 dorsal, but the latter with a pair of lateral black spots; 2） parafacialia about 1.3 times as wide as antennal flagellomere, but the latter about 2 times as wide as one; 3） mid femur with end broke of pv on basal half. but the latter with spinelike of one; 4） surstyfi of male 2 dmes as wide as its long, but the latter have been equal on each other in lateral view; 5 ） anal cerci rectangularly, but the latter cross-width. Holotype ♂ , Manasi （ 44°28＇N, 86°30＇E; 2 100m）, Xinjiang, 20 June 1976, coll. by YE Zong-Mao. Etymology. The specific name refers to the type locality in northwest region of China. 2 Helina xingkaihuica sp. nov. （Figs. 5-8） This new species resembles to H. deleta （Stein, 1914）, but can be distinguished from the latter by the following characters： 1 ） frons about 1.8 times as wide as the frontal oceUar diameter, but the latter narrower than the one; 2 ） surstyli of male very short, shaped.A to crescent-moon in lateral view, and bided behind the anal cerci in posterior view, but the latter as long as anal cerci, and cylinderlide in lateral view, that＇ s seating the both sides of anal cerci in posterior view; 3） 1st to 3rd tarsomeres of anterior leg with a pair of feelling-hairs respectively, but the latter without it. Holotype ♂ , Xingkai Lake （45°20＇N, 133°10＇E）, 150m; Heilongjiang Prov., 24 June 1971, coll. by YE Zong-Mao. Etymology. The specific name refers to the type species locality in Xingkai Lake, Heilongjiang Prov. of China. 3 Helina dasyouraea sp. nov. （Figs.9-12） This new species resembles H. prominenicauda Wu, 1989, but can be distinguished from the latter by the following characters： 1 ） length of lateral lobe of 5th sternite as 1/6 as basal part, but the latter about equal with each other; 2） 7 ＋ 8 synstemite with setae-mats on dorsal surface, but the latter without one; 3） length of surstyfi of male longer than the anal cerci markedly, but the latter about as long as one in lateral view; 4） anal cerci of male without inner process on apical part in posterior view, but the latter with it. Holotype ♂ , Manasi （ 44°28＇N, 86°30＇E; 2 100m）, Xinjiang, 20 June 1976, coll. by YE Zong- Mao. Etymology. The specific name refers to the caudal part of dorsal surface of abdomen with setae-mats. 4 Helina acocerca sp. nov. （Figs. 13-16） This new species resembles to H. cinerellioides Fang et Fan, 1992, but can be distinguished from the latter by the following characters： 1 ） eyes bare, but the latter densely covered with long hairs; 2） cross veins r-m and m-m without doud, but the latter with ones; 3） apical part of anal cerci without inner of lateral process in posterior view, but the latter with it; 4 ） surstyli of male is knifelike on profile in lateral view, but the latter cylinderlike. Holotype ♂ , Manasi （ 44°28＇N, 86°30＇E; 2 loom）, Xinjiang, 15 June 1976, coll. by YE Zong- Mao. Paratypes 2 ♂♂ , same as holotype. Etymology. The specific name refers to the anal cerci of type species sharped and compressed on distal part in posterior view.