丝角叶蜂属一新种（膜翅目：叶蜂科）  

A New Species of the Genus Nematus(Hymenoptera : Tenthredinidae)from China

作　　者：萧刚柔[1] 

机构地区：[1]中国北京林业科学研究院森林保护研究所

出　　处：《林业科学研究》1995年第5期497-499,共3页Forest Research

摘　　要：本文记述叶蜂科、丝角叶蜂亚科一新种——杏丝角叶蜂Ｎｅｍａｔｕｓｐｒｕｎｉｖｏｒｏｕｓ。本种在浙江省淳安县严重危害杏树。This paper reports a new species of the genus Nematus N. prunivorousXiao from China. It is injurious to Prunus armeniaca L. in Chunan County, ZhejiangProvince. Female:Black with purpulish blue lustre. Antennae black or blackish brown;mandibleblack with blackish red teeth;lateral sides and center of supraclypeal area each with a palepart.Cenchri deep yellow;wing hyaline with apical part slightly infuscated;stigma blacksometimes with a obsolete yellow spot on basal part;costa,basal part of anal vein blackishyellow;other veins black;leg black with apices of coxae,trochanters,basal parts of femoraand tibiae yellowish white :tarsi blackish brown or black.Pubescence on head and thoraxyellowish brown. Anterior margin of clypeus deeply imarginated,nearly arcuate;frontal carina distinct;median fovea round,small and shallow;lateral sutures deep;transverse and coronal suturesdistinct;OOL :POL :OCL=1.1:1.0:1.1;antennal length about 22/3 times head width;head behind eye in dorsal view widened;Pubescence on clypeus and labrum long and dense.Lancet see fig.1-1. Head finely and sparsely punctate; mesonotum except for scutellum with fine and densepunctures;mesepisterum with very fine and sparse punctures, interspace between punctures1～2 times diameter of puncture;abdomen without punctures but wirh obliquely distributedsculptures. Body length 10 mm;relative lengths of antennal segments=1.7:1.0:7.9:8.1:7.8 :5.9:5.8:5.2:5.3. Malk:color similar to female, but fore and median tibiae paler andyellow spot on basal part of stigma sometimes more distinct;OOL :POL :OCL=1. 6:1.0:1.7;antennal length about 21/3 times head width;head behind eye in dorsal view not widened;Penis valve see fig.1-2.Pubescence on head, mesoscutum,mesepisterum coarse and dense,rugose;ab- dominal terga 4～8 with coarse punctures. Body length 9 mm;relative length

关 键 词：膜翅目 叶蜂科 丝角叶蜂属 叶蜂 杏树 

分 类 号：S436.629[农业科学—农业昆虫与害虫防治] S433[农业科学—植物保护]