FOUR NEW SPECIES OF TETRIGOIDEA FROM ZUOJIANG,GUANGXI(ORTHOPTERA)

This paper deals with four new species of Tetrigoidea from Zuojiang area,Guangxi,South China. The type specimens are kept in the Institute of Zoology,Shaanxi Normal University. 1 Macromotettix nigrituberculus sp. nov.(Figs.1-2) This new species is similar to Macromotettix longtanensis Zheng et Jiang,but differs in: 1) head not raised above pronotum;2) width of vertex 1.3 times the width of an eye;3) lateral keels parallel in prozona;4) humeral angle rounded;5) without a pair short longitudinal keels between shoulders;6) hind process of pronotum reaching the top of hind femur;7)width of midfemur equal to the width of tegmina;8) hind tibia black.Length of body: ♂ 8mm,♀10mm; length of pronotum: ♂7mm,♀9mm; length of hind femur: ♂5mm,♀5mm.Holotype ♀,Guangxi,Fusui(11.7°N,107.9°E;100-120m),17 Aug. 2004,collected by JIANG Guo-Fang. Paratype 1♂,same data as holotype.Etymology. The specific name is derived from the Latin nigri and tubercul,referring to the pronotum with black tubercles.2 Tetrix albomaculatus sp. nov.(Figs.3-4)This new species is allied to Tetrix yunnanensis Zheng and Tetrix cliva Zheng et Deng,it differs from both in: 1) in profile,upper margin of pronotum arc;2) lower margin of midfemur undulated;3) with a pair short longitudinal keels between shoulders. It differs from the former in: 1) in profile,frontal ridge not concave before eyes;2) hind wing not reaching the top of hind process;3) width of midfemur equal to the width of tegmina;4) midkeel of upper side of hind femur without fine teeth.♂. Length of body 9mm;length of pronotum 8.5mm;length of hind femur 5.5mm.Holotype ♂,Guangxi,Fusui (22.7°N,107.9°E;100-120m),17 Aug. 2004,collected by JIANG Guo-Fang.Etymology. The specific name is derived from the Latin albo and maculat,referring to the pronotum with white spots.3 Euparatettix candidistris sp. nov.(Figs.5-6)This new species is similar to Euparatettix prominemargiinis Zheng and Euparatettix tridentatus Zheng. It differs from both in: 1) in profile,vertex and frontal ridge forming an obtuse angle,frontal ridge not concave before lateral ocelli;2) width of midfemur equal to the width of tegmina;3) lower margin of hind femur wave like.♂. Length of body 10mm;length of pronotum 10mm;length of hind femur 5mm.Holotype ♂,Guangxi, Fusui(22.7°N, 107.9°E,100-120m),17 Aug. 2004,collected by JIANG Guo-Fang.Etymology. The specific name is derived from the Latin candid and stria,referring to the pronotum with white strips. 4 Euparatettix avellanitibis sp. nov.(Figs.7-8)This new species is allied to Euparatettix nigritibis Zheng et Jiang,but differs in: 1) width of frontal ridge sulcus narrower than the width of basal segment of antenna;2) hind process of pronotum reaching the middle of hind tibia;3) lower outside of hind femur not black;4) hind tibia brown.♂. Length of body 5.5-6.5mm;length of pronotum 9-10mm;length of hind femur 5.0- 5.5mm.Holotype ♂,Guangxi, Chongzuo,(22.3°N,107.4°E;130m),21 Aug. 2004,collected by JIANG Guo-Fang. Paratype 1♂,same data as holotype.Etymology. The specific name is derived from the Latin avellan and tibis,referring to the hind tibia brown.