摘要
记述在四川青城山及大凉山地区采到的直翅目昆虫 1新属 3新种 ,即蚱科Tetrigidae的金沙江蚱Tetrixjinshajiangensissp .nov .,斑腿蝗科Catantopidae的平尾蝗属Platycercacrisgen .nov .,凉山平尾蝗Platycercacrisliangshanensissp .nov .及突角稻蝗Oxyaprominenangulasp .nov .并附我国稻蝗属已知种检索表。模式标本保存于陕西师范大学动物研究所标本室。
In the present paper,a new genus and three new species of grasshoppers from Sichuan Province are described.A key of Chinese species of Oxya is provided.Type specimens are deposited in the Institute of Zoology,Shaanxi Normal University. Oxya prominenangula sp.nov. (Figs.1\|2) This new species differs by the elytra very short and hind margin of subgenital plate of female sharp angled from all species of the genus. \ \ Length of body:♀19.5-20.0*!mm. Length of pronotum:♀3.0-3.2*!mm. Length of elytra:♀8.0\|8.5*!mm. Length of hind femur:♀13.0-13.4*!mm. Holotype ♀,paratype 1 ♀,Sichuan,Qingchengshan (31°N,102°7′E),25 Jul.1997,collected by SHI Fu\|Ming. Platycercacris gen.nov. Size median.Vertex triangular,sloping forward,width of inter\|ocular distance as wide as the width of frontal ridge which between the antennae.Frons see in profile,sloping,frontal ridge with shallow sulcus the whole length.Antennae filiform.Eyes long oval,the longitudinal diameter of eye longer then its herizontal diameter about 1.45 times,and longer than the length of subocular furrow about 2.4 times.Pronotum cylindrical,anterior margin straight,posterior margin obtuse rounded;median keel distinct,lateral keels absent;the length of prozona longer than the length of metazona about 1.7 times.Prosternal spine conical.Elytra scale like,reaching the middle of second tergibe of abdomen.Median keel of upper side of hind femur smooth,top of lower kneelope angulate.Terminal tergite of abdomen of male interrupted,with furculae.Dorsal view,hind margin of subgenital plate of male truncated,slightly concave in the middle.Cercus long conical. Type species: Platycercacris liangshanensis sp.nov. This new genus is allied to Sinopodisma Chang and Sinopodismoides Gong et Zheng.It differs from both in:1)posterior margin of pronotum obtuse rounded;2)length of prozona longer than the length of metazona about 1.7 times;3)top of lower meelope angulate.It differs from the former in:1)in male,terminal tergite of abdomen with furcula;2)hind margin of subgenital plate of mela truncated. Platycercacris liangshanensis sp. nov. (Figs.3\|8) Length of body:♂23-24*!mm. Length of pronotum:♂5.0-5.2*!mm. Length of elytra:♂4.9-5.0*!mm. Length of hind femur:♂13.5-13.5*!mm. Holotype ♂,paratype 1♂,Sichuan,Pingshan(28°8′N,104°1′E),10 Aug.1999,collected by SHI Fu\|Ming. Tetrix jinshajiangensis sp. nov. (Figs.9\|11) This new species is allied to Tetrix fuchuanensis Zheng,but differs in:1)in profile,vertex.and frons forming an obtuse angule;2)frontal ridge straight between the eyes;3)lateral keels indistinctly in prozona;4)with numerous small tubercles and wrinkles on the disc of pronotum;5)with interrupted median keel on pronotum;6)with a pair short longitudinal keels between the shoulders;7)lower margin of mid femur wave like;8)the length of subgenital plate of female larger than its width,hind margin concave,with a small triangular tooth in the middle. Length of body:♀10-11*!mm;length of pronotum:♀11.0-11.2*!mm;length of hind femur:♀6.0-6.3*!mm. Holotype ♀,paratype 1♀,Sichuan,Pingshan(28°8′N,104°1′E),9 Aug.1999,collected by SHI Fu\|Ming.
出处
《动物分类学报》
CSCD
北大核心
2001年第3期313-319,共7页
Acta Zootaxonomica Sinica
关键词
直翅目
蚱科
斑腿蝗科
新属
新种
四川
Orthoptera,Tetrigidae,Catantopidae,new genus,new species.
