The species of the genus Syntretus Foerster form China are revised in this paper. Five species are recognized with one species, Syntretus longitergitus sp. nov., as new to science. A key to the Chinese species fo this genus is provided.%本文对姬蜂茧蜂属的中国种类进行了研究,共记述5种,其中4个已知种:凸姬蜂茧蜂Syntretus bulbus Chen&van Achterberg、光姬蜂茧蜂S.glaber Chen & van Achterberg、毛姬蜂茧蜂S.setosusChen &van Achterberg和脉姬蜂茧蜂S.venus Chen&van Achterberg,1个新种:长背姬蜂茧蜂S.longitergitits sp.nov..模式标本存浙江大学寄生蜂标本室.长背姬蜂茧蜂,新种Syntretuslongitergitus Chen & He,sp.now.(图22-23)本新种与毛姬蜂茧蜂S.setosus Chen&vanAchterberg接近,其区别在于:①本种上颊、头顶、额、脸和中胸背板光滑(后者具刻点);②腹部第1背板光滑,气门明显突出(后者具刻纹,气门不突出);③产卵管鞘仅腹方及端部具毛(后者上下及端部全具毛);④胸部整个暗褐色(后者褐黄色,仅背方色较暗).模式标本:正模,♀,云南丽江雪龙山,2 880m,1996.Ⅵ.29,杜予州,No.977550.
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