广西蚱科二新种记述(直翅目:蚱总科)

Two New Species of Tetrigidae from Guangxi(Orthoptera:Tetrigoidea)

关键词:  直翅目  蚱科  突眼蚱属  蚱属  新种

Key words:  Orthoptera  Tetrigidae  Ergatettix  Tetrix  new species

摘要:

记述蚱科(Tetrigidae)2个新种,即白背突眼蚱(Ergatettix leuconotus sp.nov.),桂北蚱(Tetrix guibeiensis sp.nov.)。

Abstract:

Two new species of Tetrigidae are described. The type specimens are deposited in Agricultural College, Guangxi University.(1) Ergatettix leuconotus sp. nov.(Fig. 1) is allied to Ergtettix dorsiferus (Walker), but differs from:1) size smaller; 2) with 3~4 small tubercles on the median carina of pronotum, and with two black bands and two concavities on each side of the median carina; 3) with a white or milky yellowish ellipse stripe on pronotum between transverse sulci; 4) tip of pronotum not reaching the apex of hind tibia.Holotype ♂, paratype-2♂♂2 ♀♀, Guilin,Guangxi, Mar.28,2000, Aug.28,1988, May,5 to 9,1999,Nov.6,1999,collected by Li Tianshan.(2) Tetrix guibeiensis sp. nov.(Fig. 2) is allied to Tetrix tenuicornis (Sahlberg), but differs from:1) hind margins of the lateral lobes of pronotum with two concavities which are distinctly right angle; 2) anterior margin of pronotum arcuate or nearly truncate; 3) with a pair of abbreviated carinae between shoulders; 4) wings shorter, distinctly not reaching the apex of posterior pronotal process; 5) top of the first and second pulvilli of first segment of hind tarsi spined, the length of second pulvillus equals the length of the third's.Hollotype ♂, paratype 1♂6♀♀, 200 m,Guilin,Guangxi,Sep.13,1999, collected by Li Tianshan.