【摘要】 <正> 本文报道采自甘肃的齿股蝇属(Hydrotaea R.-D.,1830)二新种,模式标本保存于甘肃省卫生防疫站。 多鬃齿股蝇Hydrotaea multchaeta sp.nov.(图1—3) 雄 体长7.5—8.0mm。眼裸;额狭,最狭处宽度约为前单眼横径的1.5倍,间额在额最狭处消失或汉呈线状;额鬃列达于单眼三角高度,向后去渐变小,最后面的1—2对鬃眶其前的一对稍远且稍靠外;侧颜银灰色,其宽约为触角第三节宽的1/2—2/3;眉片黄棕色;触角黑,具棕灰色粉被,第三节长为宽的1.7倍,芒具毳毛;颊暗灰,其高约为触角第三更多还原

【Abstract】 In the present paper, two species of Hydrotaea R.-D., 1830 from Gansu, China are described as new to science. The type specimens are deposited in the Health & Anti-Epidemic Station of Gansu Province.Hydrotaea multichaeta sp. nov. (figs. 1-3)(?): Body length 7.5-8.0 mm. closely related to Hydrotaea pilipes Stein, 1903, but differs from the latter in the series of frontal bristles extending to a level with apex of ocellar triangle; fore femur with 6-7 long bristles on basal third; fore tibia with a row of short setae on distal half of anterodorsal surface; hind femur with a row of strong av only on distal half; especially, mid femur with two rows of very long a on basal half and a complete row of slender and dense p.Holotype (?), Shandan County (Qilianshan Mountainous area, 3400 M., 38°04’N, 101°04’E), Gansu Province, August 7, 1983, collected by Wu Jing-wei. Paratype 1(?), same as for holotype.Hydrotaea maquensis sp. nov. (figs. 4-7)(?): This new species resembles superficially to Hydrotaea pilitibia Stein, 1916, but may be easily separated from it by following respects: width of parafacialia about equal to the width of 3rd antennal segment; fore femur with a row of strong rigid blunt bristles and a row of homogeneous but small ones on basal 2/5 of ventral surface; mid femur with a row of v and pv consisting of strong rigid blunt bristles near middle 1/3 and 1/6 respectively; mid tibia with 3 p, densely covered with short comb-shaped hairs on anterior surface; hind femur without a and pv, but with a complete row of av; and body length 6.0 mm.Holotype (?), Maqu County (plateau steppe, 3800 M. 34°05’N, 102°04’E), Gansu Province, July 16, 1984, collected by Wu Jing-wei.更多还原