Four New Species of Tetrigidae From Guangxi

In the present paper,four new species of Tetrigidae from Guangxi are described.Type specimens are deposited in the Institute of Zoology,Shaanxi Normal University. Tetrix longzhouensis sp.nov.(Figs.1-2) This new species is allied to Tetrex grossifemura Zheng et Jiang 1998,but differs in:1) in profile,upper margin slightly protruding before the shoulder,then nearly straight backward;2) hind process of pronotum not reaching the top of hind femur;3) hind wing only reaching two-thirds of hind femur;4) hind tibia black,with two white rings in middle part. Length of body:♂10 mm,♀11-12 mm. Length of pronotum:♂8 mm,♀9-10 mm. Width of shoulders:♂3 mm,♀4 mm. Length of hind femur:♂ 6 mm,♀6-7 mm. Holotype:♀,Guangxi:Longzhou (Longgang),106°8′E,22°3′N,11-Ⅹ-1998,collected by Jiang Guo-fan;paratypes 1♂,2♀♀,Longzhou (Longhu),106°7′E,22°5′N,9-Ⅹ-1998,collected by Jiang Guo-fan. Formosatettixoides guangxiensis sp.nov.(Figs.3-4) This new species is related to Formosatettixoides hunanensis Zheng et Fu 1992,but differs in;1) width of vertex as wide as an eye;2) hind process of pronotum reaching two-thirds of hind femur;3) elytra absent,hind wing distinct;4) hind femur short and stout,its length two times its width;with fine teeth on the upper and lower keels of hind femur;5) ovipositor stout and short;6) hind tibia brown,with two black bands in the middle and top. Length of body:♀14-15 mm;length of pronotum;♀5.5-6 mm;length of hind femur:♀6-6.5 mm. Holotype ♀,paratype♀,Guangxi:Longzhou (Longhu),300-400 m,106°7′E,22°5′N,9-Ⅹ-1998,collected by Jiang Guo-fan. Euparatettix nigritibis sp.nov.(Figs.5-6) This new species is allied to Euparatettix variabilis (Bolivar 1887),but differs by the hind tibia black,hind wing black,with a series white spots near the anterior margin. Length of body:♂6-6.5 mm;length of pronotum;♂8-9 mm;length of hind femur:♂4-5 mm. Holotype♂,paratypes 3♂♂,Guangxi:Longzhou (Longhu),300-400 m,106°7′E,22°5′N,9-Ⅹ-1998,collected by Jiang Guo-fan. Euparatettixoides longipennis sp.nov.(Figs.7-8) This new species is related to Euparatettixoides guangxiensis Zheng 1994,but differs in;1) width of vertex slightly narrower than an eye;2) pronotum tectiform,median keel high,lobe like;3) without a pair of short longitudinal keels;4) hind wing reaching beyond the hind process of pronotum;5) anterior half of pronotum dark brown,posterior half light brown,with a black broad band behind the shoulder. Length of body:♂6-7 mm;length of pronotum:♂5-6 mm;length of hind femur:♂4-4.3 mm. Holotype ♂,paratype ♂,Guangxi:Jinxiu,1 200-1 300 m,110°2′E,24°75′N,28-Ⅷ-1998,collected by Jiang Guo-fan.