广西龙州蝗属一新种记述(直翅目:斑腿蝗科)

Description of a new species of the genus Longzhouacris (Orthoptera :Catantopidae) from Guangxi

记述龙州蝗属一新种,即斑角龙州蝗Longzhouacrisannulicornis,sp.nov.。模式标本保存在广西大学农学院昆虫标本室。编制了龙州蝗属已知种分类检索表。

A new species of the genus Longzhouacris You et Bi from Napo County of Guangxi, China is described in the paper. All the type specimens are deposited in the Agricultural College, Guangxi University. Longzhouacris annulicornis sp nov (Fig 1). The new species is similar to L jinxiuensis Li et Jin, but differs in: 1) tegmina longer, reaching( ♂ ) or nearly reaching( ♀ ) the hind margin of the 3rd abdominal tergite; 2) antennae blackbrown, the apex from the 3rd segment to the middle with a yellowish narrow ringlike stripe respectively, the last three segments yellowish brown; 3) last tergite of abdominal segment of male with triangle furcula. The new species is also allied to L hainanensis Zheng et Liang, but differs in : 1) colour of antennae different; 2) apex of subgenital plate of male obtusely rounded; 3) last tergite of abdominal segment of male with trangle furcula; 4) middle of posterior margin of supraanal plate of male protrudingly obtuse-angular. Length of body:♂ 20 2 mm,♀ 24 8～26 7mm;length of pronotum: ♂4 3 mm,♀5 1～5 5mm; length of elytra: ♂ 5 6 mm, ♀ 6 2～7 0mm; length of hind femur:♂ 12 4 mm, ♀13 5～14 4mm. Holotype ♂ , paratype 4♀♀ , Napo County, Guangxi Province, 700 m, March,18,1998, Collected by Li Tianshan.