危害欧美杨的中国厚爪叶蜂属(膜翅目:叶蜂科)一新种  

A New Species of Stauronematus Benson(Hymenoptera: Tenthredinidae),Which Is A Defoliator of Populus × canadensis in China

作　　者：刘萌萌[1] 李泽建 闫家河 魏美才[1] 牛耕耘[1] Liu Mengmeng1, Li Zejian2, Yan Jiahe3, Wei Meicai1, Niu Gengyun1(1. Laboratory of Insect Systematics and Evolutionary Biology（Central South University of Forestry and Technology）, Changsha 410004;2. Lishui Academy of Forestry Lishui 323000;3. Shanghe Forestry Bureau of Shandong Province Shanghe 251600)

机构地区：[1]中南林业科技大学昆虫系统与进化生物学实验室,长沙410004 [2]丽水市林业科学研究院,丽水323000 [3]山东省商河县林业局,商河251600

出　　处：《林业科学》2018年第6期94-99,共6页Scientia Silvae Sinicae

基　　金：国家自然科学基金项目(31501885;31672344);浙江省自然科学基金项目(LY18C040001)

摘　　要：记述采自中国山东境内危害欧美杨的厚爪叶蜂属(膜翅目:叶蜂科:突瓣叶蜂亚科)一新种:中华厚爪叶蜂Stauronematus sinicus Liu,Li&Wei。本种与杨厚爪叶蜂S.platycerus(Hartig,1840)(杨扁角叶蜂)近似,二者主要区别特征是:新种后足基节仅基缘黑色;中胸前侧片上部被毛稀疏,下半部具光裸区;锯腹片17节,3-12节缝具刺毛带;1-5锯刃具细小亚基齿,6-17锯刃亚基齿变宽大;锯基腹索踵基角突出;阳茎瓣头叶中位刺突伸向背叶背顶角,腹叶腹缘稍内凹;体长4.5~6.0 mm等。此外,中华厚爪叶蜂与杨厚爪叶蜂、柳厚爪叶蜂的COⅠ序列K2P距离分别为16.0%和15.7%。In this article, a new species, Stauronematus sinicus Liu, Li ＆ Wei, sp. nov., of Nematinae（ Hymenoptera： Tenthredinidae） is described,and the species was collected from Shandong,China. The new species is similar to S. platycerus（ Hartig,1840）, but can be distinguished from the latter by the following combination characteristics： Only the base margin of the hind coxa is black; the upper part of mesepisternum has sparse pubescent,and the lower half is glabrous; lancet contains 17 annuli,the 3 rd– 12 thsutures with dense annular spines,1 st– 5 th serrulae with small distal teeth,and 6 th– 17 thserrulae with larger teeth; basal angle of tangium is prominent; penis valve with ventral margin of paravalva is slightly emarginate,valvispina reaches to dorsal apical corner of pseudoceps; body length is 4. 5 – 6. 0 mm. The K2P distance of the COⅠsequence between S. sinicus and S. platycerus is 16. 0%,and the K2P distance of the COⅠ sequence between S. sinicus and S. saliciphilus is 15. 7%.

关 键 词：广腰亚目 突瓣叶蜂亚科 厚爪叶蜂属 新种 中国 

分 类 号：S718.7[农业科学—林学]