Three new species of calliphoridae from Sichuan, China(Dpitera)

This paper describes three new species of Calliphoridae from mountinous region of Sichuan Prov., named Polleniopsis latifacialis sp.nov., Bellardia ruficeps sp.nov. and Onesia huaxiaae sp.nov., The type specimens are kept in the lnstitute of Entomology, Shenyang Normal University. 1.Polleniopsis latifacialis sp.nov.(Figs, 1-5)\;♂:Body length 9.0-10.0mm. This new species similar to the Polleniopsis viridiventris Chen et Fan, 1988 from Xizang Auton. Reg.. but differs from the al bristles present; basicosta yellow; fore tibia with a row of ad setae(6-7); ac(1-2)+3;acrophallus of aedeagus curvous forward.\;♂:Body length 8.0mm. Frons about one_third the head width; interfrontalia red_brown, both sides parallel; frontal triangle not reaching the anterior margin of frons; inferior orbitals 10, superior orbitals 2 inclined forward; width of parafacials about 2.3 times the width of 3rd antennal segment; abdomen with median stripein trace; 3rd tergite without postmarginal bristle.\;Type locality: Holotype ♂, Mt. Erlang(tree farm, 2680m; 29°53′N, 102°10′E), Sichuan Prov., 1982-08-26,collected by Feng Yan; paratype 6 ♂♂, 1♂,1988-07-12,collected by Yang Shibin. Locality same as holotype. 2 Bellardia ruficeps Sp.nov. (Figs. 6-10)\;♂:Body length 7.0mm. The new species differs from all other known species of this genus in having the combination of the following characters: Front surface of head yellow_brown in largely; facial carina well developed; outer posthumeral bristles present; without anterior ia; r 1 vein on dorsum of apical half with a row of setae(6-7); surstyli of male broader and larger, reflex platelet on hypophallus of aedeagus larger.\;♂:Unknown.\;Type locality: Holotype ♂, Baoxing(Yongfu, 1300m;30°05′N, 102°41′E), 1985-08-09,collected by Feng yan. 3 Onesia huaxiaae sp.nov. (Figs. 11-15)\;♂:Body length 8.5-9.0mm. The new species is similar to the Onesia variola (Chen, 1979) from Heilongjiang Prov., but differs from the latter by: antennae black_fuscous; abdomen without flashing spots; cerci in male on apical part without a claw; acrophallus of aedeagus without thorn; median stripe on hypophallus of aedeagus a little curvors, apical part of surstyli stronger and thicker.\;♀: Unknown.\;Type locality: Holotype ♂, Mt. Erlang (tree farm, 2740m; 29°53′N, 102°10′E), Sichuan Prov., 1987-06-10, collected by Feng Yan; paratype 1♂, data same as holotype.