关键词: 库蠓属, 带纹亚属, 新种

Abstract: This paper reports Culicoides (Beltranmyia) liubaensis,sp.nov. from Shaanxi Province in China. The type specimens are deposited in the Shenyang Military Command Center for Disease Control and Prevention,China.Culicoides (Beltranmyia) liubaensis,sp.nov.(Fig.1)The new species is somewhat allied to Culicoides chengduensis Zhou et Lee 1984,but they are distinctly different in presentation of sensilla coeloconica,AR and mandible teeth of female,and ninth sternum,dististyle and aedeagus of male.Female: wing length 1.03 mm. Eyes separated; antennal ratio (AR) 1.06,sensilla coeloconica on segments 3,(7),9,11-14; third segment of palpus with sensory pit,palpal ratio (PR) 2.50; proboscis head ratio (P/H) 0.77,mandible with 17 teeth; Wing with 13 pale spots; Hindtibial comb with 4 spines,the first longest; A spermatheca 60 μm× 55 μm.Male gentitalia:Ninth sternum with V shaped caudomedian excavation,ventral membrane spiculate; ninth tergum with distinct developed lateral processes,and central process on posterior border; Basistyle with developed dorsal root,dististyle with slender midportion,aedeagus basal arch extending to a half of total length,tip with a shallow concavity and lateral spinulae; Parameres with basal arm long and separated,midportion united,tapering distally to slender directed lateral,filament short hairs at tip.Holotype ♀,paratype 1♂2♀ collected on 21-06-2001,from Liuba county,Shaanxi Province,China.