辽宁原蚋属二新种(双翅目:蚋科)

TWO NEW SPECIES OF PROSIMULIUM FROM LIAONING,CHINA(DIPTERA:SIMULIIDAE)

在整理采自辽宁省蚋科标本时发现原蚋属Prosimulium赫蚋亚属Helodon,新种,林栖赫蚋P.(H.)lochmocola sp.nov和原蚋亚属Prosimulium毛足种团Prosimulium hirtipes-mixtum species-group,新种,突板原蚋P.(P.)nevexalatamus sp.nov。并对两性成虫、蛹和幼虫进行形态描述。

The present paper reports two new black fly species, Prosimulium （ Helodon ） lochmocola sp. nov. and Prosimulium （Prosimulium） nevexalatamus sp. nov. The descriptions are based on the female and male, pupae and larvae specimens, collected from Xinbin county, Liaoning Province, China. The specimens are stored in the Health and Anti-epidemic Station of Xinbin County. 1 Prosimulium （ Helodon ） Iochmocola sp. nov. This new species is closly resemble to P. （ H. ） multicaulis （Popov, 1968） from Kazakhstan, but differs from it in having the female anterior gonapophysis breadth tongue-shaped, genital fork of two arms carry the convex triangle-shaped. Male ventral plate flat, about 3 times as wide as its length, median sclerite wider and larger. Pupal gill with three stems, each consist of 80 - 100 small filaments. Larvae postgenal cleft M-shpaed, anal sclerite two upper arms are longer than two lower arm. Holotype♀, allotype ♂, paratype 2 ♀♀, 3 ♂♂, 56 pupae and 38 larvae were collected from Gangshan, Xinbin County, Liaoning Province on July 14 1990, August 14 1992, August 24 1993, respectively. 2 Prosimulium （Prosimulium） nevexalatamus sp. nov. This new species belongs to Prosimulium hirtipes-mixtum species-group similar to P. （ P. ） hirtipes Fries, 1824, and differs from it in having the female genital fork stem basal slende, paraproet hook-shaped. Male ventral plate end view behind protruded long and triangle-shaped. Pupa gill with 16 filaments from dorsal to ventral and arranged in groups of （2 ＋ 3 ＋ 3） ＋ （2 ＋ 2） ＋ （2 ＋ 2）. Larvae hypostomium corner teeth with median teeth together high. Holotype♀, allotype ♂ , paratype 35 2♀♀, 43 ♂♂, 40 pupae and 58 larvae, were collected from Kanjia, Xinbin County, Liaoning Province 10 May 1991.