贵州蚋属一新种记述(双翅目:蚋科)

A NEW BLACKFLY OF THE GENUS SIMULIUM LATREILLE FROM GUIZHOU PROVINCE,CHINA (DIPTERA:SIMULIIDAE)

记述采自贵州省雷公山的蚋属指名亚属Simulium(Simulium)一新种。根据其雌性生殖叉突的形态特征命名为钩突蚋S .(S .)uncumsp .nov .,描述其形态特征并进行了分类讨论。模式标本存放于贵阳医学院生物学教研室。

This paper deals with a new species of the genus Simulium Latreille from Gui zhou Province,China.The type specimens are deposited in the Department of Biolog y of Guiyang Medical College.Simulium(Simulium)uncum sp. nov. (Figs.1 10) This new species is similar to S.(S.)sakishimense(Takaoka,1977,but it is dis tinguished chiefly by:(1)median sclerite with truncate end and ventral plate pea r\|shaped in male;(2)each arm of genital fork with hook\|like projection in fema le;(3)with 5 pairs of fine,single thoracic trichomes in pupa;(4)larval postgenal cleft rounded apically and about 2 times as long as postgenal bridge,rectal gil l lobes each with 13 15 finger\|like secondary lobules. Holotype ♀,reared from pupa,collected from the stream at Leishan County(26°18 ′N,108°17′,1?400?m),25 Apr.1994.Paratypes 2 Abstract This paper deals with a new species of the genus Simulium Latreille from Gui zhou Province,China.The type specimens are deposited in the Department of Biolog y of Guiyang Medical College.Simulium(Simulium)uncum sp. nov. (Figs.1 10) This new species is similar to S.(S.)sakishimense(Takaoka,1977,but it is dis tinguished chiefly by:(1)median sclerite with truncate end and ventral plate pea r\|shaped in male;(2)each arm of genital fork with hook\|like projection in fema le;(3)with 5 pairs of fine,single thoracic trichomes in pupa;(4)larval postgenal cleft rounded apically and about 2 times as long as postgenal bridge,rectal gil l lobes each with 13 15 finger\|like secondary lobules. Holotype ♀,reared from pupa,collected from the stream at Leishan County(26°18 ′N,108°17′,1?400?m),25 Apr.1994.Paratypes 2♂♂,reared from p upae,2 pupae and 1 larva,collected with holotype.Taken larva and pupae from subm erged grass blades exposed to sun.