NOTES ON A NEW GENUS AND SPECIES OF TRYPETINAE FROM CHINA (DIPTERA: TEPHRITIDAE)

The present paper deals with a new genus and species of the subfamily Trypetinae collected from Xizang, China. The type specimen is deposited in the Institute of Zoology, Acade-mia Sinica, Beijing.Apiculonia gen. nov.Head approximately 1.5 times as high as long. Frons as wide as eye, parallel sided. Genae rather narrow, about 1/8 of the eye height. The median area of face slightly concave, epistoma broad and large, almost semicircle-shaped. Antennae rather short, not extending to the oral margin and subequal in length to 3/4 of the face, the 3rd segment twice as long as its median width, rounded a; apex; arista short pubescent. The lower portion of occiput swollen. Scutellum flat dorsally. Wing hyaline with a brown apical spot. Crossvein r-m situated at the apex of cell 1M2; the 3rd section of m1+2 vein very short, equal in length to 2/3 of r-m. Cell R long and Rs rather short, about 2/3 as long as cell 1M2. Stigma shorter than cell C2, but distinctly longer than one half of the latter. Setae on vein r 4+5 extending beyond level of m-cu crossvein. The lower distal angle of cell Cu short, approximately equal to 1/4 of the length of cu2 + an1. Each front femur with 6-7 brown posteroventral bristles, middle tibia with a black apical spur. The median portion of abdomen broad, the 5th segment triangulate, about 1.5 times as long as the preceding one. Chaetotaxy of head and thorax complete and well-developed, as most genera in Trypetini.Allied to Trypeta Meigen, but is readily recognized by the epistoma well-developed, almost semicircle-shaped; r-m situated at the apex of 1M2; the 3rd section of m1+2 very short, equal in length to 2/3 of r-m; cell R5 rather short, about 2/3 as long as cell 1M2. Apiculonia tibetana sp. nov. (figs. 1-3)♂ A yellow brown medium-sized species. Frons pale yellow, the anterior median area orange yellow. Lunule, mesofacial plate, epistoma, palpi entirely eburneus; frontal angle, pa-rafacialia, genae and antennae lacteal-yellow except for arista brown; vertex, postorbit and occiput pale yellow-brown; ocellar triangle black. Thorax yellow-brown, covered with pale yellow pubescence; humeral calli, propleura and the area surrounding front spiracle yellow; pleuroterga black with a yellow-brown narrow median longitudinal stripe. Wing hyaline ex- cept for a large brown spot at apex. Legs entirely yellow. Abdomen yellow-brown, covered with brown pubescence and mixed with black bristles along the lateral and apical margins.Length: body, 5.0 mm; wing, 6.5 mm.Holotype ♂, Zhamo (29.8°N, 95.7°E), Xizang, 2700 m, 21. Ⅷ. 1978, by Li Fa-sheng.