中国云南省怒江峡谷短翼蚱科二新种(直翅目)

记述釆自云南省怒江峡谷地区短翼蚱科2新种,即突眼狭顶蚱Systolederus oculatus sp.nov.及高黎贡山波蚱Bolivaritettix gaoligongshanensis sp.nov.。突眼狭顶蚱近似于广西狭顶蚱Systolederus guangxiensis Zheng etJiang,1998及峨眉狭顶蚱Systolederus emeiensis Zheng,1998。突眼狭顶蚱与两种的区别为:1)侧面观前胸背板上缘平直;2)前胸背板后突到达后足胫节顶末端;3)雌性下生埴板后缘具3齿;4)后足胫节黑色,具淡色环。区别于广西狭顶蚱为:1)前胸背板前缘中央微凹;2)肩部之间不具1对短纵隆线。其又区别于峨眉狭顶蚱为:1)前胸背板中隆线全长明显;2)后翅到达后突的顶末端。高黎贡山波蚱近似于九万山波蚱Bolivaritettix juwanshanensis Zheng,2005及宽顶波蚱Bolivaritettix lativertex Brunner von Wattenwyl,1893。主要区别于二者为:1)颜面隆起纵沟宽狭于触角基节宽;2)肩角圆形;3)后突到达后足胫节2/3处;4)中足股节宽狭于前翅宽;5)后足股节上侧中隆线后段具3个突起。其又区别于九万山波蚱为:1)头顶宽为1眼宽的1.5倍;2)侧面观前胸背板上缘平直;3)后翅到达后突顶末端。

TWO NEW SPECIES OF METRODORIDAE (ORTHOPTERA) FROM THE NUJIANG GORGE, YUNNAN, CHINA

In the present paper,two new species of M etrodoridae,i.e.,Systolederus oculatus sp.nov.and Bolivaritettix gaoligongshanensis sp.nov.,are described.T he type specimens are deposited in the M useum of Southwest Forestry University and Institute of Zoology,Shaanxi Normal University.Systolederus oculatus sp.nov.(Figs 1-3) T his new species is allied to S.guangxiensis Zheng et Jiang,1998 and S.emeiensis Zheng,1998,but differs from both in:1) upper margin of pronotoum straight in profile;2) hind process of poronotum reaching the top of hind tibia;3) hind margin of subgenital plate of female with three teeth;4) hind tibia black,with light ring.It differs from S.guangxiensis in:1) the middle of anterior margin of pronotum slightly concave;2) without a pair short longitudinal keels between shoulders.It differs from S.emeiensis in:1) midkeel of pronotum distinctly the whole length;2) hind wing reaching the top of hind process.Length of body:♂ 11.0-12.5 mm;♀15.0 15.5 mm.Length of pronotuom:♂ 10.5-12.5 mm;♀ 13.5-14.0 mm.Width of shoulders:♂ 2.0 2.5 mm;♀ 3.0-3.1 mm.Length of hind femur:♂ 4-5 mm;♀ 4-5 mm.Holotype ♂,Yunnan,Liuku(25° 50’ N,98°51’E;alt.770 m),17 M ay 2011,collected by LI Hui-Jun et al.Paratypes:4♂♂,4♀♀,same data as holootype;7♂♂,2♀♀,Yunnan,Liuku,alt.730-750 m,16 M ay 2011,collected by LI Hui-Jun et al.Etymology.T he specific name is derived from the Latin "ocula".Bolivaritettix gaoligongshanensis sp.nov.(Figs 4-8) T his new species is allied to B.juwanshanensis Zheng,2005 and B.lativertex Brunner von W attenwyl,1893,but differs from both in:1) width of frontal ridge narrower than the width of basal segment of antenna ;2) hind process reaching the two third of hind tibia;3) upper midkeel of hind femur with three projections;4) width of midfemur narrower than the width of tegmina.5) humeral angle of pronotum rounded.It differs from B.juwanshanensis in:1) width of vertex 1.5 times that the width of an eye;2) upper margin of pronotum nearly straight in profile;3) hind wing reaching the top of hind process.Length of body:♂ 10-11 mm;♀ 13.5 14.0 mm.Length of pronotuom:♂ 13.0-15.5 mm;♀15-20.mm.Length of hind femur:♂ 6.0 6.3 mm;♀6.5-10.0 mm.Holotype ♀,Yunnan,Lushui(26°5’N,98°5’E;alt.940 m),27 M ar.2011,collected by LI Hui-Jun.Paratypes:6 ♂♂,12 ♀♀,same data as holotype;1♂,2♀♀,Yunnan,Lushui(25°39’ N,98°24’ E;alt.780 m),collected by W U Yu-Xi and LI Jian-Yu.Etymology.T he specific name is derived from the type locality "Gaoligongshan".