新疆蝗虫一新属新种(直翅目,蝗总科)

ONE NEW GENUS AND ONE NEW SPECIES OF GRASSHOPPER FROM XINJIANG(ORTHOPTERA,ACRIDOIDEA)

记述采自新疆地区斑翅蝗科1新属,黑色蝗属Melaniacrisgen.nov.及1新种黑缘黑色蝗M.nigrimargicsis sp.nov.。黑色蝗属近似于平顶蝗属,但前胸背板前缘平直;前胸背板具侧隆线;颊部前下角不具1短斜隆脊;头及前胸背板背面平滑,缺瘤突。模式标本保存于陕西师范大学动物研究所昆虫标本室。

In the present paper,a new genus,Melaniacris gen.nov.,and a new species,M.nigrimargicsis sp.nov.of Oedipodidae are described from Xinjiang.Melaniacris gen.nov.Size medium to small.Head protruding above pronotum slightly;vertex wide and flat,apical margin truncate;foveola triangular;vertex and frontal ridge forming a rounded shape in profile;lower part of frontal ridge with longitudinal furrow.Antenna filiform.Anterior margin of pronotum truncate,hind margin obtuse angular protruding;prozona roof like,metazoa wide and flat;lateral keels in prozona short and curve,in metazoa with three lateral keels in each side,midkeel only cut by posterior sulcus;length of prozona shorter than metazona.Tegmina and hind wings developed,reaching the top of hind femur;precostal area long and slender,reaching two thirds of anterior margin of tegmina;medium area with intercalary vein,longitudinal vein of hind wing normal,not thick.Upper margin of hind femur smooth,without teeth.Hind tibia without outer apical spine.Type species：Melaniacris nigrimarginis sp.nov.