摘要
The male genitalia of four tribes and seven genera in the subfamily Spondylidinae in China are described and compared. Result shows that 18 genital morphologcial characteristics are different within this subfamily. Five differences such as shape of the parameres, ratio of length and width of parameres, shape of tergite VIII, etc., could be used to indentify tribes within the Spondylidinae. Six morphologcial characteristics, such as ratio of parameres and tegmen, shape of roof, curvature of median lobe, etc., could be used to identify genera within the tribe Asemini. Two characteristics, ratio of length and width of parameres and the setation of tergite VIII can be used to identify species in the genus Cephalallus. A key to the Chinese tribes of Spondylidinae and the genera of Asemini is presented.
描述并比较了中国椎天牛亚科4族7属的雄性外生殖器结构特点。结果表明:椎天牛亚科内有18个雄性外生殖器结构特征存在差异,其中阳基侧突的形状、阳基侧突的长宽比,腹部第8节背板的形状等5个特征在椎天牛亚科内族级水平具有重要分类学意义;阳基侧突占阳茎的比例,腹部第8节背板的被毛情况等6个特征在幽天牛族内属级水平具有重要分类学意义;同时阳基侧突的长宽比,腹部第8节背板的被毛情况可用于塞幽天牛属中近似种的区分。基于雄性外生殖器的结构,编制了椎天牛亚科分族及幽天牛族分属的检索表。
基金
project was supported by the Science and Technology Basic Research Fund(2015FY210300)
