中国蕨叶蜂亚科两新属新种(膜翅目:叶蜂亚目:蕨叶蜂科)

报道了中国蕨叶蜂科蕨叶蜂亚科两新属新种：吴氏狭眶叶蜂Linorbita wuae gen.et sp.nov.和黑跗痕缝叶蜂Parapeptamena nigritarsis gen.et sp.nov.

Two New Genera and Species of Selandriidae from China (Hymenoptera:Tenthredinomorpha )

This paper deals with two new genera and two new species of Selandriinae from China, Linorbita wuae gen. ep sp. nov. and Parapeptamena nigritarsis gen. et sp.nov.. Type materials are kept in the Insect Collection of Central South Forestry University,Zhuzhou,China. Linorbita gen. nov. is a member of the tribe Aneugmenini and is allied to Atoposelandria Enslin and Birka Malaise,but differs from them in hind orbit linear,occipital carina long,very fine and shallow,pedicellum 1. 5 times longer than wide, hind basitarsus shorter than following joints together,lancet with complete sutures. Furthermore,Atoposelandria differs from the new genus also in frontal carina sharp and complete,hind tibial spur much longer than apical breadth of hind tibia,hind anal cell sessile and male with sinus sexualis; Birka differs from the new genus also in clypeus truncate,vein M subparallel with lm-cu,penis valve F-form with large middle transversal lobe. Parapeptamena gen. nov. belongs to the tribe Aneugmenini and closely allied to Apeptamena Malaise and Neothrinax Enslin. However,the new genus differs from Apeptamena in prepectal suture vestigial,mandibular carina absent,lancet with developed sutures and spiculella. It differs from Neothrinax in antenna slender, lancet and lance normal, not long and slender, apical tooth of mandible slender and strongly bent.