Abstract:
18 species of Tetrigoidea which belong to 3 families and 12 genera were dealed with. Among the 8 species are described as new to the field, such as Xistra strictivertex sp. nov.、Mazarredia longipennioides sp. nov.、Bolivaritettix yuanjiangensis sp. nov.、Macromotettix wangxiangtaiensis sp. nov.、Coptotettix latifemurus sp. nov.、Tetrix longipennioides sp. nov.、Tetrix mandanensis sp. nov.and Euparatettix nigrifasciatus sp. nov. Type specimens are deposited in the Institute of Zoology, Shaanxi Normal University and Key Laboratory of Forest Disaster Warning and Control in Yunnan Province, Southwest Forestry University.1. Xistra strictivertex sp.nov. ( Fig.1)This new species is allied to Xistra nigritibialis Zheng et Jiang,2002, but differs in: 1) width of vertex narrower than that of an eye; 2) antennae inserted between the lower margin of eyes; 3) in profile, upper margin of pronotum with two protuberances ahead of shoulders; 4) lateral keels of prozona contracted backward; 5) width of midfenmur narrower than that of elytra; 6) inner side of hind femur ochreous; 7) ventral surface of thorax and abdomen black.Length of body: ♂ 6~6.5 mm; length of pronotum: ♂ 9~9.1 mm; length of hind femur: ♂ 4~4.5 mm.Holotype ♂, Yunnan: Yuanjiang, 2 010 m, 102° E, 23°2′N, 16-July-2006, collected by Liu Biao; paratype 1♂, same data as holotype.2. Mazarredia longipennioides sp. nov. ( Fig.2)This new species is closed to Mazarredia longipennis Zheng et Jiang,2005, but differs in: 1) anterior margin of vertex straight; 2) width of frontal ridge which between antennae narrower than that of coax of antenna; 3) antennae inserted under the lower margins of eyes; 4) lateral ocelli placed one third of the anterior margin of eye; 5) hind process reaching the top of hind tibia; 6) lower margin of midfemur straight; 7) ventral surface of subgenital plate with a longitudinal keel; 8) inner side of hind femur ochreous; 9) lower outside of hind femur ochreous; 10) ventral surface of thorax and abdomen ochreous.Length of body: ♀ 10 mm; length of pronotum: ♀ 12 mm; length of hind femur: ♀ 5 mm.Holotype ♀, Yunnan: Yuanjiang, 1 860 m, 102°E, 23°2′N, 20-July-2006, collected by Liu Biao.3. Bolivaritettix yuanjiangensis sp. nov. ( Fig.3)This new species is similar to Bolivaritettix ghumtianus ( Hancock ),1915, but differs in: 1) anterior margin of vertex protruding ahead of anterior margin of eyes; 2) in profile, vertex and frontal ridge forming a right angle, seeable before eyes; 3) lateral keels of prozona long; 4) with a pair short longitudinal keels between shoulders; 5) hind wing reaching the middle of hind femur; 6) hind margin of subgenital plate of female with three teeth; 7) ventral surface of subgenital plate with a longitudinal keel.Length of body: ♂ 9 mm; ♀ 12 mm.Length of pronotum: ♂ 6 mm; ♀ 8 mm.Length of hind femur: ♂ 5 mm; ♀ 7 mm.Holotype ♀, Yunnan: Yuanjiang, 1 860 m, 102°E, 23°2′N, 19-July-2006, collected by Liu Biao; paratype 1♂, Yunnan: Yuanjiang, 2 160 m, 102°E, 23°2′N, 03-May-2006, collected by Liu Biao.4. Macromotettix wangxiangtaiensis sp. nov. ( Figs.4)This new species is allied to Macromotettix luoxiaoshanensis Zheng et Fu,2000 and Macromotettix nigritibis Zheng et Fu,2005. It differs from both in: 1) antennae inserted between the lower margin of eyes; 2) surface of pronotum smooth; 3) width of midfemur wider than that of elytra. It differs from the former in: 1) width of frontal ridge which between antennae wider than that of coax of antennae; 2) lateral keels of prozona contracted backward; 3) hind process not reaching knee of hind femur. It differs from the latter in: 1) head protruding above pronotum; 2) width of vertex as wide as an eye; 3) lower margin of midfemur wave like; 4) hind tibia ochreous, with two dark bands in the middle.Length of body: ♂ 6 mm; ♀ 8 mm.Length of pronotum: ♂5.5 mm; ♀ 6 mm.Length of hind femur: ♂ 4 mm; ♀ 5 mm.Holotype ♀, Yunnan: Yuanjiang, 2160 m, 102°E, 23°2′N, 21-July-2006, collected by Liu Biao; paratype 1♂, Yunnan: Yuanjiang, 1860 m, 102°E, 23°2′N, 20-July-2006, collected by Liu Biao.5. Coptotettix latifemurus sp. nov. ( Fig.5)This new species is allied to Coptotettix longipennis Zheng et Wei,2000 and Coptotettix beihaiensis Deng et Zheng,2006. It differs from both in: 1) anterior margin of vertex straight; 2) width of frontal ridge which between antennae wider than that of coax of antennae; 3) in profile, upper margin of pronotum nearly straight; 4) width of midfemur 1.8 times fore femur; 5)width of midfemur equal that of elytra in male and narrower than that of elytra in female. It differs from the latter in: 1) without a pair of short longitudinal keels between shoulders; 2) hind margin of subgenital plate of female with a large triangular protuberance in the middle.Length of body: ♂9 mm; ♀ 10.5~11 mm.Length of pronotum: ♂8 mm; ♀ 9~10 mm.Length of hind femur: ♂ 4 mm; ♀ 8 mm.Holotype ♀, Yunnan: Yuanjiang, 770 m, 102°E, 23°2′N, 25-July-2006, collected by Liu Biao; paratypes 3♀, same data as holotype.6. Tetrix longipennioides sp. nov. ( Fig.6)This new species is allied to Tetrix longipennis Zheng,2006 and Tetrix baoshanensis Zheng、Wei and Liu,1999. It differs from both in: 1) anterior margin of vertex not protruding ahead of eyes; 2) in profile, vertex and frontal ridge forming obtuse rounded; 3) in profile, upper margin of pronotum arc ahead of shoulders and flat behind; 4) disc of pronotum smooth; 6) lower margin of midfemur straight. It differs from the former in: 1) width of vertex as wide as an eye; 2) with a pair very short longitudinal keels between shoulders. It differs from the latter in: 1) midkeel of pronotum distinct whole length; 2) lateral keels of prozona parallel. Length of body: ♂ 7.5~8 mm.Length of pronotum: ♂ 9.5~10.5 mm.Length of hind femur: ♂ 5.5~6 mm.Holotype♂, Yunnan: Yuanjiang, 1860 m, 102°E, 23°2′N, 19-July-2006, collected by Liu Biao; paratypes 3♂, same data as holotype.7. Tetrix mandanensis sp. nov. ( Fig.7)This new species is closed to Tetrix latifemuroides Zheng,2005, but differs in: 1) anterior margin of vertex straight; 2) in profile, vertex and frontal ridge forming a right angle; 3) antennae inserted between the lower margin of eyes; 4) without a pair short longitudinal keels between shoulders; 5) hind process which surpassing the top of hind femur about 1.5 mm; 6) hind wing which surpassing the hind process about 0.5 mm; 7) subgenital plate of male short conical.Length of body: ♂ 8 mm.Length of pronotum: ♂ 8 mm.Length of hind femur: ♂ 4 mm.Holotype♂, Yunnan: Yuanjiang, 757 m, 102°E, 23°2′N, 04-May-2006, collected by Guo Chang-cio.8. Euparatettix nigrifasciatus sp. nov. (Fig.8)This new species is allied to Euparatettix prominemarginis Zheng,2005, but differs in: 1) anterior margin of vertex arc; 2) hind process of pronotum reaching knee of hind femur; 3) lower margin of midfemur straight; 4) hind margin of subgenital plate of female straight, with a triangular protuberance in the middle; 5) ventral surface of subgenital plate of female without a longitudinal keel in the middle; 6) hind tibia ochreous, with two black stripes in the middle.Length of body: ♂ 8 mm.Length of pronotum: ♂ 5 mm.Length of hind femur: ♂ 45 mm.Holotype♂, Yunnan: Yuanjiang, 2 160 m, 102°E, 23°2′N, 21-July-2006, collected by Liu Biao.
