短角平腹小蜂属一新种记述（膜翅目：旋小蜂科）

A NEW SPECIES OF MESOCOMYS FROM CHINA

描述了短用平腹小蜂属ＭｅｓｏｃｏｍｙｓＣａｍ．一新种透翅平腹小蜂ＭｅｓｏｃｏｍｙｓａｅｇｅｒｉａｅＳｈｅｎｇ，ｓｐ．ｎｏｖ．，标本采自陕西韩城，模式标本保存于江西农业大学植保系标本室内。

This paper deals with a new species of Mesocomys Cam.,the Mesocomys aegeriae sp.nov. is described.Specimens are preserved in Jiangxi Agricultural University. Mesocomys aegeriae Sheng,sp. nov. Female. Body length 2.7～3.5 mm,Dark brown,with bluish green tinge,Forewinghyaline without spots or band.The tegula and lateral surface of prepectus dark,The frontalsurface of the prepectus is yellow. Head with rather coarse reticulation and sparser brownhairs. Pedicel and flagellum slightly longer than the width of head,all seven funicular segmentsmostly subequal in length but slightly increasing in width.Club obliquely truncated,a littlefonger than preceeding 3 segments combined.POL about 2.5 times as long as the post occellusdiameter;OOL about 0.5 times as long as post occellus diameter. Thoraxic dorsum with unusual broadly U-shaped notaular depression. Mesoscutum withlow convex,subrectangular median lobe differentiated by more or less sulcate,widely separate,subparalleI notauli and with relatively sparse,usually long bristle-like setae. The scutellumand axilla with shallow reticulation,the meshes of which tending to arranged in circles.Forewing hyaline,extends far beyond the tip of abdomen,SM:M:PM: S = 30:40:30 :17.Submarginal vein with 5～8 hairs. The basil cell of forewings entirely setose which behind thesubmarginal vein are whitish and extend to the base of the wing along the posterior margin.The tip of mid tibia have strong spines and under side of mid tarsi 1～4 segments with strongpegs.Propodeum shorter with a distinctly delimited,V-shaped medial depression. Male. Body lengh 2.5～2.8 mm. bluish green with metal tinge. mesoscutum with linearnotauli converging barkward to its hind margin. Propodeum with mid carinae without V-shaped medial depression. Mid leg normal. Holotype,Allotype,Paratype 5,3,Hancheng,Shaanxi,15-VIII-1965,Dang Xinde. Parasitic in egg of Dendrolimus tabulaeformis Tsai et Liu.This new species is similar to Mesocomys orientalis Ferriere,but the latter in having:Forewing with two spots near the anterior and posterior margin,all pedicel segments are short-er and transverse,I wish to express my hearty gratitude to Dr. Gibson,G. of the Centre forLand and Biological Resources Research,for his invaluable advice and studying papers.