中国革腹茧蜂属 Ascogaster一新种(膜翅目 :茧蜂科 :甲腹茧蜂亚科 )(英文)

A new species of the genus Ascogaster Wesmael from China (Hymenoptera: Braconidae: Cheloninae)

本文记述了中国革腹茧蜂属 Ascogaster一新种皱纹革腹茧蜂 Ascogaster retis Ji et Chen,sp.nov.。新种主要特征是 :体黑色 ;触角中部稍膨大 ;头顶具横向网状皱 ;背面观 ,上颊约与复眼等长 ;额与复眼缘之间具纵向网状皱 ;脸具粗糙网状皱 ;唇基具中度密集的刻点 ,端缘中央具一钝突 ;盾纵沟甚浅 ;中胸侧板具孔穴状刻点 ,无基节前沟 ;并胸腹节具明显的四齿 ,侧齿大 ,中齿小 ;甲壳末端具与体平行的短棘 ;产卵器鞘较短 ,不超出腹末。本新种与 Ascogaster fullawayi(Baker)相似 ,但新种额两侧边缘中间与复眼缘之间无角状齿 ,脸下部的网状皱不形成弱纵脊 ,脸部毛短且稀疏 ,甲壳末端棘短而钝。该新种模式标本保存于福建农林大学益虫研究室。

A new species of the genus Ascogaster Wesmael (Hymenoptera: Braconidae: Cheloninae), Ascogaster retis Ji et Chen, sp. nov. is described and illustrated from China. The new species is characterized by black body; antenna slightly dilated medially; vertex with coarse transversal areolate rugae; temple almost equal to eye in dorsal view; face coarsely reticulate rugose; clypeus moderate dense punctate, medial apical border pointed forwards into a dull tooth; notauli rather shallow, mesopleuron lacuno punctate without precoxal sulcus; propodeum with four teeth, lateral teeth bigger and middle teeth smaller; carapace with a conical spine at apex, ovipositor sheath short and not beyond carapace in lateral view. The new species is similar to Ascogaster fullawayi (Baker), but differs from the latter in: temple about equal to eye in dorsal view, no sharp angulate teeth between frons and eye orbits; no weak longitudinal carina through the lower part of face; carapace apex with a small and dull conical spine. The type specimens are deposited in the Beneficial Insects Laboratory, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.