STUDIES ON CALYPTERATE FLIES FROM WEST SICHUAN,CHINA,II.DESCRIPTIONS OF SEVEN NEW SPECIES OF THE FAMILY ANTHOMYIIDAE (DIPTERA)

In this paper, seven species of the family Anthomyiidae are described as new. All the types are preserved in the Shanghai Institute of Entomology, Academia Sinica.1. Anthomyia parvilamina sp. nov. (figs. 1-3)♂: Body length 7 mm, closely related to Anthomyia plurinotata Brulle, from which it differs in the following aspects: the apex of lateral lobe of 5th sternite angulated, and the lamina on inner margin of lateral lok smaller; the pregonite rhomboid; the postgonite with two hairs; and the hind tibia with 1 av, 14 ad,2pd, 5-8 pv.♀+: Unknown.Type locality. Yaan (Laobanshan, 700 m.). 30°00′N, 102°57′E. 2. Lasiomma densisetibasis sp. nov. (figs. 4-7)♂: Body length 7 mm. Eyes bare; antennae black, length of the 3rd antennal segment is twice its width; 9th abdominal tergite with a paif of caudoventral processes; under the abdomen, 5th sternite is well protrusive, of which, the lateral lobe with a patch of dense stiff setae on basal half of inner margin and with an inner thin lamina on the inside of the lobe.♀: Unknown.Type locality: Yaan (Zhougongshan, 1760 m.), 30°00′N, 102°59′E.3. Pegohylemyia apodicra sp. nov. (figs. 8-10)♂: Body length 7 mm. It is similar to the European specie Pegohylemyia gentianae Pand-elle, but differs from the latter as follows: lateral lobe of 5th sternite 0.7 times as long as its basal part, not as 2.2 times; the postgonite only with one hair, pregonite with two hairs, one of which is knife-shaped and another is Chinese chopper-shaped; cereal plate with a pair of apici-lateral branches being slender and widely separated from each other, and with a shorter median process.♀: Unknown.Type locality: Yaan (Zhougongshan, 1760 m.), 30°00′N, 102°59′E.4. Phorbia erlangshana sp. nov. (figs. 11-13)♂: Body length 5-5.5mm. Closely related to Phorbia kochai Suwa from Japan; but differing from the latter in having the bristles on outer margin of lateral lobe of 5th sternite sparse and thick; both outer and inner margins of surstylus with wavy outlines in caudal view, while in profile it is ax-shaped; on apical part of cereal plate densely armed with a tuft of long hairs.♀: Unknown.Type locality: Erlangshan (Muyiepeng, 2840 m.), 29°53′N, 102°10′E.5. Eutrichota (Pegomyza) fuscigenua sp. nov. (figs. 14-16)♂: Body length 8-8.5 mm. It is very similar to Eutrichota lamellata Fan et Chen, but differing from the latter in having knees darker, lateral lobes of 5th sternite with inner margins diverged, inner margin of surstylus being less projective in caudal view; and 7 + 8 synsternite dark blown.♀Unknown.Type locality: Erlangshan (Muyiepeng, 2840 m.), 29°53′N, 102°10′E.6. Leucophora piliocularis sp. nov. (figs. 17-19)♂. Body length 5 mm. Very closely related to Leucophora xizangensis Fan and Zhong, and Leucophora dorsalis Stein, but differs from them as folows: the eyes densely hairy; m-m cross-vein somewhat S-shaped; surtylus is twice as long as width in caudal view; cereal plate broadly heart-shaped; the pregonite with two hairs at base and with a blunt bristle at apex.♀: Unknown.Type locality: Kangding (Paomashan, 2800 m.), 30°7′N, 101°58′E. 1. Chirosia sichuanensis sp. nov. (figs. 20-22)♂: Body length 3.5 mm. Closer to the Holarctic species Chirosia flavipennis Fallen, the differences between each other are as follows:♀: Unknown.Type locality: Yaan (Zhougongshan, 1760m.), 30°00′N, 102°59′E.