云南省蚱属四新种记述(直翅目,蚱科)

FOUR NEW SPECIES OF TETRIX LATREILLE FROM YUNNAN PROVINCE (ORTHOPTERA,TETRIGIDAE)

记述采自云南省无量山及丽江地区蚱属昆虫 4新种 ,即拟二斑蚱Tetrixparabipunctatasp .nov .、拟毛股蚱Tetrixparabarbifemurasp .nov.、黑缘蚱Tetrixnigrimarginissp .nov .及无斑蚱Tetrixnonmaculatasp .nov .。模式标本保存于西南林学院保护生物学学院昆虫标本室。

In this paper, four new species of the genus Tetrix are described. Type specimens are deposited in the College of Protect Biology,Southwest Forestry College.1 Tetrix parabipunctata sp. nov.(Figs.1-2) The new species is allied to Tetrix bipunctata(Linnaeus), but differs in: 1)width of vertex 2 times the width of an eye; 2)anterior margin of vertex round shape; 3)in profile, costal ridge slightly concave before lateral oculus; 4)width of sulcus of costal ridge slightly wider than the width of the first segment of antenna; 5)lateral keels of prozona long, constract behind; 6)lower margin of midfemur undulate; 7)width of midfemur as wide as the width of elytra; 8)length of hind femur 1.875 times of its width. Length of body: ♂11mm; length of pronotum: ♂ 9mm; length of hind femur: ♂ 6.5mm. Holotype ♂, Yunnan: Jingdong(1150m, 109°9′E, 24°8′N, 28 May 2001, collected by OU Xiao-Hong. 2 Tetrix parabarbifemura sp. nov.(Figs.3-5) This new species is allied to Tetrix barbifemura Zheng, but differs in: 1)width of vertex 1.67 times the width of an eye; 2)vertex protuberance before the anterior margin of eyes; 3)in profile, vertex and costal ridge forming a rectangular; 4)with a pair short oblique longitudinal keels between shoulders; 5)hind wing reaching the top of hind process; 6)upper and lower margins of hind femur smooth; 7)lower margin of midfemur undulate and without long hairs. Length of body: ♀ 11.0-11.5mm; length of pronotum: ♀ 9.0-9.1mm; length of hind femur: ♀ 5.7-6.0mm. Holotype ♀, Yunnan, Jingdong, 1630m, (24°8′N, 100°9′E ) , 16 Nov. 2001, collected by OU Xiao-Hong; paratype 1♀, other data as holotype.3 Tetrix nigrimarginis sp. nov. (Figs.6-7) This new species is allied to Tetrix japonica(I.Bol.), but differs in: 1)in profile, costal ridgestraight before lateral oculus; 2)in profile, upper margin of pronotum arc; 3)lower margin of midfemur 1,6 times the width of elytra; 4)hind wing reaching the middle of hind femur; 5)outer side of lower margin of hind femur black. Length of body: ♂8.0-8.2mm; length of pronotum: ♂ 6.0-6.1mm; length of hind femur: ♂ 5.7-6.0mm. Holotype ♂, Yunnan, Lijiang( 2800m, 27°N, 100°2′E ), 20 Aug. 2000, collected by HE Qiu-Ju; paratype 1♂, other data as holotype.4 Tetrix nonmaculata sp. nov.(Figs.8-10) This new species is allied to Tetrix transmacula Zheng, but differs in: 1)antenna inserted onethird of the anterior margin of eye; 2)hind wing reaching the middle of hind femur, the length of hind wing 2.5 times the length of elytra; 3)lower margin of midfemur straight; 4)length of subgenital plate of female nearly equal to its width; 5)length of upper valve of ovipositor of female 5 times its width; 6)pronotum dark black without white band. Length of body: ♀ 6.0-6.2mm; length of pronotum: ♀ 7.0-7.1mm; length of hind femur: ♀ 5.0-5.5mm. Holotype ♀, Yunnan, Jingdong (2200m, 24°8′N, 100°9′E ), 24 May 2001, collected by OU Xiao-Hong; paratype 1♀, other data as holotype.