跃姬蜂属(膜翅目:姬蜂科:栉足姬蜂亚科)一新种记述  

A New Species of Xenoschesis Förster(Hymenoptera:Ichneumonidae:Ctenopelmatinae)

作　　者：王瑛 洪宇 肖维阳 李斌 李涛 WANG Ying;HONG Yu;XIAO Weiyang;LI Bin;LI Tao(Jiuzhaigou National Nature Reserve Administration,Aba,Sichuan Province 623402,China;Northwest Survey and Planning Institute,National Forestry and Grassland Administration,Xi’an 710048,China;General Station of Forest and Grassland Pest Quarantine,Sichuan Forestry and Grassland Administration,Chengdu 610081,China;Center for Biological Disaster Prevention and Control,National Forestry and Grassland Administration,Shenyang 110034,China)

机构地区：[1]九寨沟国家级自然保护区管理局,四川阿坝623402 [2]国家林业和草原局西北调查规划院,西安710048 [3]四川省林业和草原局有害生物防治检疫总站,成都610081 [4]国家林业和草原局生物灾害防控中心,沈阳110034

出　　处：《四川动物》2024年第2期225-229,共5页Sichuan Journal of Zoology

基　　金：国家重点研发计划项目(2022YFD1401000);青海门源县仙米林区昆虫多样性调查项目(2023-036)。

摘　　要：首次报道跃姬蜂属Xenoschesis F?rster,1869在四川、甘肃、青海的分布,并报道该属1新种:红斑跃姬蜂Xenoschesis (Polycinetis) rufimacula Li, sp. nov.。该新种与黑跃姬蜂Xenoschesis (Polycinetis) melana Sheng, Sun&Li, 2020相似,与后者的区别主要是:侧单眼间距约为单复眼间距的1.2倍,中胸侧板中央纵向呈细粒状表面,腹部第1节背板长约为端宽的2.0倍,腹部第2节~第4节背板红色、腹板红褐色;黑跃姬蜂的侧单眼间距约为单复眼间距的0.9倍,中胸侧板中央光滑无粒点,腹部第1节背板长约为端宽的1.7倍,腹部全部黑色。详细描述了该种的形态特征,提供了鉴定特征图。模式标本保存于国家林业和草原局生物灾害防控中心昆虫博物馆。In this study,Xenoschesis Förster,1869 was first discovered from Sichuan,Gansu and Qinghai provinces and a new species,Xenoschesis(Polycinetis)rufimacula Li,sp.nov.was identified.This new species is similar to X.(Polyci-netis)melana Sheng,Sun&Li,2020,but can be distinguished from the latter by the following combinations of charac-ters:postocellar line approximately 1.2×as long as ocular-ocellar line;median portion of mesopleuron with fine leathery texture;tergite 1 approximately 2.0×as long as apical width;tergites 2-4 red,sternites 2-4 reddish brown.X.(Polyci-netis)melana:postocellar line approximately 0.9×as long as ocular-ocellar line;median portion of mesopleuron smooth;tergite 1 approximately 1.7×as long as apical width;metasoma black.The illustration and description are provided.The specimens examined are deposited in the insect museum,Center for Biological Disaster Prevention and Control,National Forestry and Grassland Administration.

关 键 词：栉足姬蜂族 东古北区 国家公园 新种 跃姬蜂属 

分 类 号：Q969.54[生物学—昆虫学]