广西蚱科二新种记述(直翅目:蚱总科)

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

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

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.