拟科蚱属的分类研究及一新种记述(直翅目：短翼蚱科)  

A review of the genus Cotysoides Zheng et Jiang (Orthoptera: Metrodoridae), with descriptions of a new species

作　　者：郑哲民[1] 欧晓红[2] 

机构地区：[1]陕西师范大学动物研究所,西安710062 [2]西南林业大学云南森林灾害预警与控制重点实验室,昆明650224

出　　处：《昆虫学报》2011年第7期838-842,共5页Acta Entomologica Sinica

基　　金：国家自然科学基金项目(31060291)

摘　　要：拟科蚱属Cotysoides建立于2000年,该属的主要特征为体小型;头顶前缘突出于复眼之前;触角丝状,着生于复眼前缘下1/3处;前胸背板背面密具小瘤突;中隆线波状,形成一连串小突起;后突不超过后足股节顶端;前胸背板侧片外翻,后角顶平截;后翅不达后突顶端;后足跗节第1节长于第3节。本文记述拟科蚱属6种,包括1新种,即断隆拟科蚱Cotysoides interruptus sp.nov.该新种近似于广西拟科蚱Cotysoides guangxiensis Zheng et Jiang,2000,主要区别为:1)头顶为一眼宽的1.5倍;2)前胸背板侧片前角钝角形;3)后翅伸达后足股节膝部;4)中足股节宽狭于前翅宽;5)雌性下生殖板后缘中央三角形突出。附有分种检索表、分布及文献引证。新种的模式标本保存于陕西师范大学动物研究所及西南林业大学博物馆。The genus Cotysoides was erected in 2000, recognizable through the following morphological characters： size small; anterior margin of vertex protruding beyond eyes; antennae inserted in the lower one third level of anterior margin of eyes; disc of pronotum densely covered with small tubercles; median keel undulated, with a series projections; hind process not reaching the top of hind femur; lateral lobe of pronotum turning over outwards, posterior angles truncate; hind wing not reaching the top of hind process; the first segment of hind tarsus longer than the third. This paper reports six species of the genus Cotysoides Zheng et Jiang, including a new species, Cotysoides interruptus sp. nov. The new species is allied to Cotysoides guangxiensis Zheng et Jiang, 2000, but differs in： 1） width of vertex 1.5 times of an eye; 2） top of anterior angle of lateral lobe of pronotum obtuse angular; 3） hind wing reaching the knee of hind femur; 4） width of midfemur narrower than the width of tegmina; 5） hind margin of subgenital plate of female with a triangular projection in the middle. A key to species of Cotysoides is provided. Type specimens are kept in Institute of Zoology, Shaanxi Normal University and the Museum of Southwest Forestry University.

关 键 词：直翅目 短翼蚱科 拟科蚱属 分类学 新种 

分 类 号：Q969[生物学—昆虫学]