摘要
本文记述锐顶天牛属一新种，即墨脱锐顶天牛 Ｃｌｅｐｔｏｍ ｅｔｏｐ ｕｓ ｍ ｏｔｕｏｅｎｓｉｓｓｐ．ｎｏｖ．。模式标本保存于西南农业大学植保系昆虫标本馆。
The present paper deals with a new species of Cleptometopus Thomson, 1864 from Xizang of China. The type specimen is deposited in the Insect Collection, Southwest Agricultural University. Cleptometopus motuoensis, sp. nov. (Figs. 1-4) Body large in size;dark reddish brown;antennae about four times as long as body;scape strongly expanded at apex;antennae reddish brown except for apex of scape, pedicel, extreme apical portion of the third to fifth segments and the eleventh segment, blackish brown. Dorsal surface covering alternatively with dark reddish brown and grayish white pubescence and forming markings:three grayish white vittae on pronotum;a x-shaped marking on 2/3 elytral base and another oblique marking on the disc of 1/3 apical portion of elytron, meeting each other from the upper in suture of elytra. Male genitalia (Figs 2-4): tegmen shorter than median lobe with median struts. Lateral lobes cylindric, moderate long and furnished densely with long setae at apex; ring-part not geniculate and rimmed. Median lobe with median struts stout; ventral margin of median orifice pointed; median lobe distinctly longer than median struts. Internal sac provided coarse microtrichia and armed with a flagellum within apical portion With one ejaculatory duct. Length: 21.5mm; width; 6.0mm. Holotype ♂, CHINA:Xizang, Motuo (29°09′N, 95°18′E), Ⅷ-1984, coll. He Tan. This new species is similar to C. similaris (Gressitt, 1945), but it can be easily distinguished from the latter by:much bigger size; lower lobe of eye distinctly longer than gena below; scape capitate-shaped instead of clavate; elytra decorated with x-shaped marking instead of triangular one. The new species in named for its type locality, Motuo County, Xizang of China.
出处
《华东昆虫学报》
1999年第1期12-14,共3页
Entomological Journal of East China
