贵州省秆蝇科分类之五(双翅目:无瓣蝇类)  

New and Little-Known Species of Chloropidae From Guizhou(V)

作　　者：杨集昆[1] 杨定[2] 

机构地区：[1]贵州科学院 [2]北京农业大学

出　　处：《贵州科学》1993年第4期1-2,6,共2页Guizhou Science

摘　　要：本文记述了贵州茂兰自然保护区秆蝇科(Chloropidae)的颜脊秆蝇属(Eurina)一新种,模式标本存北京农业大学昆虫标本室。颜脊秆蝇属Eurina Meigen 该属为Meigen 1830年建立,模式种是E.Lurida Meigen 1830。体中至大型;头部长大于高,且额明显向前突出;颜区后缩,有大体上明显隆起的颜脊;额三角区末端钝或尖伸达额的前缘;颊宽,宽于触角第3节;触角第3节长大于宽,末端圆或略尖,触角芒多毛。全世界已知10种,分布于古北区和东洋区。BeekerThis paper deals with one new species of the genus Eurina. The types are kept in the Insect Collections of Beijing Agricultural University. Eurina nagatomii Yang et Yang, sp. nov. (Figs. 1-2) Body length 4.0-4.1 ram, wing length 3.1-3.4 mm. Head pale brownish yellow to yellow with pale grayish pollinosity; dorsal surface with black hairs and bristles, oral margin with pale yellow hairs. Head 1.2 times longer than high; gena below eye 0.4 times as wide as eye, and nearly as wide as antennal segment 3. Frontal triangle convex on lateral margin, and with anterior apex obtusely extending to anterior margin of frons; occllar tubercle black. Antenna yellow; antennal segment 3 1.2 times as long as wide, its apex black; arista brownish with basal portion yellow. Proboscis including palpus yellow, and pale yellow haired. Thorax pale brownish yellow to yellow with pale grayish pollinosity. Mesonotum and seutellum with black hairs and bristles. Mesonotum with three indistinct brownish longitudinal spots. Legs yellow; hairs on legs pale yellow, but tarsi with black hairs. Wing hyaline, 2.6 times as long as wide, and with pale kbrownish yellow veins; relative proportion of costal sections between 2rid, 3rd and 4th:1:1:0.95. Halteryellow. Abdomen pale brownish yellow with pale graysih pollinosity; hairs on abdomen black. Holotype♀, paratype 1♀, Maolan, Guizhou, 13. v. 1990, Yang Jikun and Liu Zhiqi. This new species is named in honour of Professor Akira Nagatomi(Kagoshima University, Japan). It is similar to E. lurida Meigen from the Palaearctic region, but may be spearated from the latter by hav-ing the antennal segment 3 black on its apex and thoracic pleura without black markings.

关 键 词：双翅目 秆蝇科 贵州 永富颜脊杆蝇 

分 类 号：Q969.453.1[生物学—昆虫学]