摘要
本文记载采自四川、云南二省蚱科2新属3新种。驼背蚱属Gibbotettix,新属,近似于Cladonotella Hanc.及Potua Bol.,其区别于后两属为前胸背板后突顶端平截,中央略凹;触角细长,中段节长为宽的7～9倍。峨嵋驼背蚱Gibbotettix emeiensis,新种,体暗褐色。红河驼背蚱G.hongheensis,新种,近似于峨嵋驼背蚱G.emeiensi,主要区别为头顶宽为一眼宽的2倍;头顶侧缘隆线明显片状突出;触角着生于眼下缘之下不远;前胸背板前缘平截;背板驼背向后渐低。二齿蚱属Bidentatettix,新属,近似于Falconis Bol.,其区别为头顶前缘具2向前的锐齿;前胸背板侧片后角具5个锐齿;各足股节下、上缘均具1列大刺突。云南二齿蚱B.yunnanensis,新种,体暗黄褐色。
This paper reports two new genera and three new species of Tetrigidae from Yunnan and Sichuan. The type specimens are deposited in the Department of Biology, Shaanxi Normal University.Gibbotettix Zheng, gen. nov.Small. Vertex very wide, its width larger than the width of one eye about 2-2.6 times, pined with the frons fcrming a rectangle; frontal ridge protuberant between the antennae. Antennae inserted below the eyes, filiform, slender, the length of middle segments larger than width about 7-9 times. Eyes globose. Anterior half of pronotum distinctly prominent, humpbacklike, posterior half flat; shoulder obtusely angular; apical part of hind process truncate, slightly concave in the middle; posterior angles of the lateral lobes of pronotum nearly square. Elytra and wings wanting. Upper and lower margins of anterior and middle femora with two lobe-like processes. The length of first segment of hind tarsus larger than second and third segments together.Type species: Gibbottix emeiensis Zheng.This new genus is allied to Cladonotella Hanc. 1908 and Potua Bol. 1887, but differs from both by: 1) apical part of hind process of pronotum truncate, slightly concave in the middle; 2) antenna long and slender, its length of middle segments larger than width about 7-9 times.Gibbotettix emeiensis Zheng, sp. nov. (Figs 1-2)Female: Body fuscous; the 14 segment of antenna white, the other segments fuscous. Male: Unknown.Length of female: 10mm; antenna 6mm; pronotum 10mm; hind femur 6mm. Holotype (?) , Sichuan:Emei, 200m, 22-Ⅵ-1955.Gibbotettix hongheensis Zheng, sp. nov. (Figs 3-5)This new species is allied to G. emeiensis Zheng, but differs from the latter by the characters of its male: 1) vertex wider than one eye about two times; 2) lateral ridge of vertex distinctly prominent, lobe-like; 3) the distance between antenna and eye short; 4) anterior margin of pronotum straight; 5) humpback of pronotum gradually lowering backward.Female: Unknown.Length of male: 8-11mm; antenna 6-7mm; pronotum 7-9mm; hind femur 6-7mm.Holotype (?), paratype (?), Yunnan: Pingbian, 350m. 25-Ⅵ-1956.Bidentatettix Zheng, gen. nov.Small. Integument coarsely tuberculous. Vertex wider than one eye about 3.5 times; anterior margin with two sharp teeth forward. Frontal ridge protuberant between antennae. Antennae inserted below eyes. Eyes globose. Median keel of pronotum distinct in anterior half, with big or small tubercules; lateral keels serrated, distinct in prozona; shoulders indistinct, along the lateral margin of pronotum with a row of small tubercules; anterior margin straight with a row of of samll tubercules; anterior margin straight with a row of teeth; hind process wedge-like; posterior angles of the lateral lobes of pronotum with five sharp teeth, the second one long and curved forward. Elytra and wings developed, wings extended to the top of hind process of pronotum. Upper and lower margins of all femora with a row of large sharp teeth. Length of first segment of hind tarsus larger than second and third segments together.Type species: Bidentatettix yunnanensis, sp. nov.The new genus is allied to Falconis Bol. 1898, but differs by: 1) anterior marginn of vertex with two sharp teeth forward; 2) posterior angles of lateral lobes of pronotum with five sharp teeth; 3) upper and lower margins of all femora with a row of sharp teeth.Bidentatettix yunnanensis Zheng, sp. nov. (Figs 6-8) Female: Body and antennae fuscous. Male: Unknown.Length of female: 15mm; antenna 5mm; pronotum 17mm; hind femur 8mm. Holotype (?), Yunnan: Xishuangbanna, 620-650m. 27-Ⅴ -1959.
基金
国家自然科学基金
关键词
四川
云南
蚱科
新属
新种
Sichuan, Yunnan, Tetrigidae, new genera, new species.
