【摘 要】
：
对分布于北京的10种脊虎天牛属甲虫开展了分类研究,恢复了北京脊虎天牛Xylotrechus pekingensis Pic,1939的地位,不再是宽带脊虎天牛Xylotrechus yanoi Gressitt,1934的异名,报道了本种在河北和陕西的新分布记录.提出双带脊虎天牛Xylotrechus bifenestratus Pic,1916是四带脊虎天牛Xylotrechus polyzonus (Fairmaire,1888)的新异名,两者的模式标本均产自北京.本文还报道了3种北京新记录种:显纹脊
【机 构】
：
绵阳师范学院,森林与草原防灾减灾工程研究中心,四川绵阳621000;中国科学院动物研究所,动物进化与系统学院重点实验室,北京100101;中国科学院动物研究所,动物进化与系统学院重点实验室,北京100
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对分布于北京的10种脊虎天牛属甲虫开展了分类研究,恢复了北京脊虎天牛Xylotrechus pekingensis Pic,1939的地位,不再是宽带脊虎天牛Xylotrechus yanoi Gressitt,1934的异名,报道了本种在河北和陕西的新分布记录.提出双带脊虎天牛Xylotrechus bifenestratus Pic,1916是四带脊虎天牛Xylotrechus polyzonus (Fairmaire,1888)的新异名,两者的模式标本均产自北京.本文还报道了3种北京新记录种:显纹脊虎天牛X.ibex (Gebler,1825)、葡脊虎天牛X.pyrrhoderus Bates,1873和黑胸脊虎天牛X.robusticollis (Pic,1936).通过检视标本,很多新的分布信息被加入到相关的种类.最后本文提供了分布于北京的10种脊虎天牛属甲虫的分种检索表.“,”Ten species of the genus Xylotrechus Chevrolat,1860 from Beijing are studied.Xylotrechus pekingensis Pic,1939 is reinstated from synonym of Xylotrechus yanoi Gressitt,1934,and newly recorded from Hebei and Shaanxi Provinces.Xylotrechus bifenestratus Pic,1916 is proposed as a new junior synonym of Xylotrechus polyzonus (Fairmaire,1888),both were described from Beijing,China.Three species,X.ibex(Gebler,1825),X.pyrrhoderus Bates,1873,and X.robusticollis (Pic,1936),are reported from Beijing for the first time.Several new localities are added to the related species based on specimens examined.A key to the ten species ofXylotrechus Chevrolat,1860 from Beijing is provided.
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