中国狭蚱属、尖顶蚱属的分类检索及二新种记述(直翅目:蚱总科)  

Key to the species of Xistra Bolivar and Teredorus Hancock from China with descriptions of two new species

作　　者：郑哲民[1] 

机构地区：[1]陕西师范大学动物研究所,陕西西安710062

出　　处：《商丘师范学院学报》2015年第6期1-9,共9页Journal of Shangqiu Normal University

基　　金：国家自然科学基金资助项目(31160433)

摘　　要：系统记述中国狭蚱属种类18种,尖顶蚱属种类30种,包括二新种,即石林狭蚱Xistra shilinensis sp.nov.和长背尖顶蚱Teredorus longidorsaslis sp.nov.石林狭蚱近似于武夷山狭蚱Xistra wuyishanensis Zheng&Zeng,2011,主要区别为:1)触角刚着生于复眼下缘之下;2)颜面隆起侧缘上狭下宽;3)肩部之间具一对短而平行的纵隆线;4)前胸背板后突到达后足胫节1/3处;5)雌性下生殖板后缘具3突起;6)后足股节下侧外面具二黑斑;7)后足胫节黑色,中部具2淡色环.长背尖顶蚱近似于广西尖顶蚱Teredorus guangxiensis Zheng,Shi et Luo,2003,主要区别为:1)颜面隆起纵沟宽狭于触角基节宽;2)触角刚着生于复眼下缘之下;3)肩部之间具一对不明显的短斜纵隆线;4)前胸背板后突到达后足胫节顶端;5)雌性下生殖板后缘中央三角形突出;6)雌性上产卵瓣长为宽的3倍;7)后足跗节第1节略长于第3节;8)后足胫节黑色具2白环.新种的模式标本保存于陕西师范大学动物研究所昆虫标本室.A taxonomy of the genra Xistra Bolivar and Teredorus Hancock from China are revised,amony then two new species are described,i. e. Xistra shilinensis sp. nov.,and Teredorus longidorsalis sp. nov. The Xistra shilinensis sp. nov. is allied to Xistra wuyishanensis Zheng Zeng,2011,but differs in： 1） antennae inserted just below the lower margin of eyes; 2） lateral margin of frontal ridge upper narrower and lower broader; 3） with a pair of short parallel longitudinal keels between shoulders; 4） hind process reaching one third of hind tibia; 5） hind margin of subgenital plate of female with three process; 6） lower outer side of hind femur with two black spots; 7） hind tibia black,with two light rings in the middle. The Teredorus longidorsalis sp. nov. is allied to Teredorus guangxiensis Zheng et Shi,2003,but differs in： 1）width of longitudinal furrow of frontal ridge narrower than the width of basal segment of antenna; 2） antennae inserted just below the lower margin of eyes; 3） with a pair indistinct of short oblique longitudinal keels between shoulders; 4） hind process reaching the top of hind tibia; 5） length of the first segment of hind tarsus slightly longer than the third; 6） length of upper valvulae 3 times its width; 7） middle of posterior margin of subgenital plate of female triangularly projecting; 8） hind tibia black,with two white rings in the middle. The type specimens are deposited in the Institute of Zoology,Shaanxi Normal University.

关 键 词：直翅目:蚱总科:狭蚱属:尖顶蚱属 新种 

分 类 号：Q969.26[生物学—昆虫学]