广西北部湾地区蚱科二新种记述(直翅目,蚱总科)

TWO NEW SPECIES OF TETRIGOIDEA(ORTHOPTERA) FROM BEIBUWAN REGION OF GUANGXI,CHINA

记述采自广西北部湾地区蚱总科昆虫2新种,即圆肩悠背蚱Euparatettixcircinihumerussp.nov.,桂南悠背蚱Euparatettixguinanensissp.nov.。模式标本保存在陕西师范大学动物研究所昆虫标本室。

In this paper, two new species of Tetrigidae are described. Type specimens are deposited in the Institute of Zoology, Shaanxi Normal University, China. Euparatettix circinihumerus sp. nov. （Figs. 1-3） The new species is allied to Euparatettix yunnanensis Zheng et Xie, 2000, but differs in： 1） width of vertex narrower than width of an eye; 2） with a pair of abbreviated carinae between shoulders; 3） width of tegmina 1.4 times the width of midfemur; 4） female with a triangular projecting in the middle of hind margin of subgenital plat; and 5） posterior tibia filemot. ♀ Length of body 7.8 ram, length of pronotum 10.2 mm, length of hind femur 5.8 mm. Holotype ♀, Guangxi Hepu （Shikangjiujiang） （21.7° N, 109.3° E; alt.80 m）, 12 Feb. 2005, collected by WEI Shi-Zhen. Paratypes 2♀♀, same data as holotype. Etymology. The species name is derived from the Latin circin and burner, meaning the round humeral angle. Euparatettix guinanensis sp.nov（Figs.4-5） The new species is allied to Euparatettix spicuvertex Zheng, 1998, but differs in： 1 ） median segment of antennae 3-4 times as long as its width; 2） median carina of pronotum low, not lamellar; 3 ） humeral angles of pronotum round; 4） hind wing reaching over the top of posterior pronotal process about 1.5 mm; 5） lower of margins of middle femora straight; 6 ） antegenicular denticles and genicular denticles right angle; 7） length of posterior femora 4.7 times of its width; and 8） out part of lower side of hind femur not black. ♂Length of body 5-6 mm, length of pronotum 8.8-9.2 mm, length of hind femur： 4.2-4.6 mm. Holotype ♂, Guangxi Beihai （ Yinpan ） （21.4°N, 109.4° E, alt. 50m）, 10 Feb. 2005; collected by WEI Shi-Zhen. Paratypes 4 ♂♂ , same data as holotype. Etymology. The species name is from the type locality Guangxi.