寄生灰斑古毒蛾的姬蜂(膜翅目,姬蜂科)及一新种记述

报道采集自宁夏和内蒙古、寄生灰斑古毒蛾Orgyia ericae Germar的4种姬蜂:地蚕大铗姬蜂Eutanyacra picta(Schrank)、舞毒蛾黑瘤姬蜂Pimpla disparis Viereck、寡埃姬蜂Itoplectis viduata(Gravenhorst)、古毒蛾歧腹姬蜂Dichrogaster orgyiae Sheng,sp.nov.。介绍了新种和近似种及我国已知种的主要区别特征并附彩色特征图。

SPECIES OF ICHNEUMONIDAE (HYMENOPTERA) PARASITIZING ORGYIA ERICAE WITH DESCRIPTION OF A NEW SPECIES

Four species of Ichneumonidae,Eutanyacra picta(Schrank),Itoplectis viduata(Gravenhorst),Pimpla disparis Viereck,and a new species,Dichrogaster orgyiae Sheng,sp.nov.,reared from Orgyia ericae Germar in Ningxia and Inner M ongolia,are reported.T ype specimens are deposited in the Insect M useum,General Station of Forest Pest M anagement,State Forestry Administration,China.Dichrogaster orgyiae Sheng,sp.nov.(Figs 1-7) T his new species is similar to D.parva Yoshida et Konishi,2008,but the female can be distinguished from the latter(♀) in having face particularly wide,approximately 2.4 times as wide as long,punctures indistinct;frons with fine coriaceous texture and fine indistinct punctures;areola 2.1 times as wide as long,connecting costula at its middle;areolet receiving vein 2m-cu about at 0.3 distance from vein 2rs-m to 3rs-m;teeth of lower valve of ovipositor indistinct;flagella black,ventral profile slightly brownish;anterior portion of tergum 3 brown,posterior portion and the following terga black.D.parva(male unknown):face is not particularly wide,approximately 1.9 times as wide as long,with dense punctures;frons with fine and distinct punctures,the space between punctures smooth;areola 2.5 times as wide as long,connecting costula approximately at its posterior 0.33;areolet receiving vein 2m-cu about at its middle;lower valve of ovipositor with nine distinct teeth;tergum 3 brown,tergum 4 and the following terga dark brown.Holotype ♂,Zhungerqi,alt.1 040 m,Inner M ongolia,24 Aug.2007,SHENG M ao-Ling.Paratypes:1 ♂,hangjinqi,alt.1 200 m,Inner M ongolia,8 Sep.2007,SHENG M ao-Ling;1 ♂,Yanchi,alt.1 380 m,Ningxia,17 Aug.2009,W U Jin-Xia;1 ♀,Zhungerqi,alt.1 040 m,Inner M ongolia,13 Sep.2007,SHENG M ao-Ling.Host.Orgyia ericae Germar.Etymology.T he specific name is derived from thehost’s name.Eutanyacra picta(Schrank,1776) Ichneumon pictus Schrank,1776.Beytrge zur Naturgeschichte(Leipzig),1776:88.M aterial examined.1♀,1♂(reared from Orgyia ericae Germar),Dongsheng,alt.1 380 m,Inner M ongolia,7 to 10 June 2006,SHENG M ao-Ling;1♀(reared from Orgyia ericae Germar),Erduosi,alt.1310 m,Inner M ongolia,12 July 2008,SHENG M ao-Ling.Pimpla disparis Viereck,1911 Pimpla disparis Viereck,1911.Proceedings of the United States National Museum,40:480.M aterial examined.3 ♀♀,1 ♂(reared from Orgyia ericae Germar),Erduosi,alt.1 380 m,Inner M ongolia,15 Sep.to 6 Nov.2006,SHENG M aoLing;1 ♀,2 ♂♂(reared from Zeiraphera grisecana(Hübner)),Liupanshan,Ningxia,18-30 July 1990;1 ♀,3 ♂ ♂(reared from Zeiraphera grisecana(Hübner)),Liupanshan,Ningxia,28-30 July 1991;4♀♀,3♂♂(reared from Dioryctria pryeri Ragonot),Shenyang,Liaoning,20-29 June 1996,SHENG M ao-Ling;4 ♀♀,3 ♂♂(reared from D.pryeri Ragonot),Shenyang,Liaoning,13-14 Aug.2007,SHENG M ao-Ling.Itoplectis viduata(Gravenhorst,1829) Pimpla viduata Gravenhorst,1829.Ichneumonologia Europaea,3:214.M aterial examined.1 ♀,(reared from Dioryctria pryeri Ragonot),Shenyang,Liaoning,24 M ay 1990,SHENG M ao-Ling;4 ♀♀(reared from Orgyia ericae Germar),Dongsheng,Inner M ongolia,13 Sep.2006,SHENG M ao-Ling;4♀♀,2♂♂(reared from Orgyia ericae Germar),Yanchi,Ningxia,21 Sep.2006,SHENG M ao-Ling;2♀♀,5♂♂(reared from Zeiraphera grisecana(Hübner)),Liupanshan,Ningxia,30 Aug.2007;7♀♀,1 ♂(reared from Orgyia ericae Germar),Dongsheng,Inner M ongolia,18 June 2008,SHENG M ao-Ling.