中国四川厕蝇属三新种(双翅目:厕蝇科)

Three new species of the genus Fannia from Sichuan China (Diptera:Faniidae)

记述采自中国四川地区厕蝇科厕蝇属FanniaR .-D .,1 83 0三新种 ;分别命名为类多突厕蝇Fanniapolystylodessp.nov .,毛颜厕蝇Fanniafacisetosasp .nov.和华西厕蝇 fanniahuaxiiasp .nov..模式标本保存于沈阳师范学院昆虫研究所 .

This paper describes three new species of the genus Fannia R._D. 1830 from mountainous region of western Sichuan Province during years 1983-1990, i.e. Fannia polystylodes sp. nov., Fannia facisetosa sp. nov. and Fannia huaxiia sp. nov.. The type specimens are deposited in the Institute of Entomology Normal University, China.1. Fannia polystylodes sp. nov. (figs.1-2)\;♂:Body legth 6.0mm. Allied to Fannia polystykata Wang et Xue, 1997 from Shanxi Province, but differs from the latter in having the frons at narrowest point about 2 times the width of as front ocellus; scutum without stripe; femora and tibiae black; fore tibia without ad; posterior lobe of surstylus of male on apical 1/3 of outer margin with a small branch in lateral view, apical middle process of cerci thin.\;Holotype ♂, Mt. Erlang(tree farm, 2680m, 29°54′N, 102°09′,E), Sichuan Province, 24, May, 1984, by Feng Yan; paratypes 2♂♂, samme as holotype. 2. Fannia faciisetosa sp. nov. (figs. 3-4)\;♂:Body length 5.0 mm. Terminalia of male is closely related to Fannia yaanensis sp. nov. from Sichuan Province, but differs from the latter in having the parafacialia with a row of setae; eyes bare; pra 2; surstylus of male at outer lobe with hairs in posterior view; bacilliform process spiral.\;Holotype ♂, Mt. Erlang(tree farm, 2680m, 29°54′N, 102°08′E), Sichuan Province, 14, September, 1990, by Feng Yan. 3. Fannia huaxiia sp. nov. (Figs. 5-6)\;♂: Body length 4.5 mm. Allied to Fannia polystylata Wang et Xue, 1997, but differs from the altter in having fore tibia without ad, mid tibia with 1 ad, hind tibia with 2 av and 2 ad; inter_process of cerci short, posterior lobe of surstylus with a small branch on the distal part.\;Holotype ♂, Mt. Erlang(tree farm, 2670m, 29°54′N, 102°08′E), Sichuan Province, 24, May, 1984, by Feng Yan.