中国侧沟茧蜂属一新种(膜翅目:茧蜂科:小腹茧蜂亚科)  

A new species of Microplitis Frster from China(Hymenoptera:Braconidae: Microgastrinae)

作　　者：陈家骅[1] 季清娥[1] 宋东宝[2] 

机构地区：[1]福建农林大学植保学院益虫室,福建福州350002 [2]解放军军需大学农生系,吉林长春130062

出　　处：《华东昆虫学报》2004年第2期1-5,共5页Entomological Journal of East China

摘　　要：本文记述从寄主斜纹夜蛾饲养得到的侧沟茧蜂属MicroplitisFo¨rster 1新种 :双斑侧沟茧蜂MicroplitisbicoloratusChen ,sp nov 。This paper described a new species Microplitis bicoloratus Chen, sp.nov. of the genus Microplitis F o¨rster from Guangzhou of China.The type speciments are kept in the Beneficial Insect Laboratory, College of Plant Protection, Fujian Agriculture and Forestry University.Microplitis bicoloratus Chen, sp.nov.(Figs 1-7)Holotype: ♀,body length 2.5mm,fore wing about as long as length of body.Head: In dorsal view, width of head 1.8 times as long as length, and somewhat smaller than width of thorax; ocelli not on line, OOL shorter than POL and 1.8 times as long as OD, frons with transverse rugose; antenna even thin and somewhat longer than length of body; in frontal view, face with transversal rugose and width 1.3 times length; clypeus convex and with small rugose,width 1.7 times height; malar space about equal to basal width of mandible. Thorax: notauli distinct, mesoscutum with small transversal rugose punctum; scutellum with punctum in middle and reticulate-rugose around; precoxal sulcus short; propodeum with coarse reticulate-rugose and a media longitudinal carina.Wing: vein 1-R1 of fore wing stigma, vein r almost straight, emitted from middle of stigma, r∶2-SR =0.7∶1.1, 1-M slightly arch, small cell big and almost quadrangle.Leg: Hind coxa small and shorter than T1, two hind tibia spurs equal to each other and about 1/3 length of basitarsus. Abdomen: T1 with a shallow puncture, other tergites smooth and shiny. T1 with middle suture and T1 1.5 times as long as width, T1 apex round with a smooth tuber and two edges almost parallel. T2 indistinct separate from T3 and with middle area and somewhat shorter than length of T3. Both ovipositor and ovipositor sheath short, almost as long as third tarsus.Coloration: Body black. Antenna dark-brown; palpi yellow-brown; tibial spur yellowish-brown; basal half of 1-R1 dark-brown; beneath Pt and discal cell with a dark spot respectively; Pt and other veins light brown. Fore and middle coxae dark-red, middle femora red-brown, apex 2/3 of hind femora shallow red-brown, ap

关 键 词：中国 侧沟茧蜂属 膜翅目 茧蜂科 小腹茧蜂亚科 

分 类 号：Q969.5447[生物学—昆虫学]