中国大疣蛛属一新种(蜘蛛目,六疣蛛科)

A New Species of the Genus Macrothele from China (Araneae:Hexathelidae)

记述了我国六疣蛛属一新种 ,命名为版纳大疣蛛 (Macrothelebannaensissp .nov .) .文中量度单位为mm .模式标本保存在湖南省生物研究所 .版纳大疣蛛 ,新种Macrothelebannaensissp .nov .(图Ⅰ ,1～ 6)正模♀ ,云南省景洪市西双版纳自然保护区勐仑 ,1997年 11月 2 6日 ,颜亨梅采 ;副模 4♀♀ ,采集地点、时间及采集人同上 ;1♀ ,采集地点同上 ,1999年 6月 2 6日 ,徐湘采。正模♀ ,体长 16.0 0mm ,头脑部长 5 .3 3mm ,宽 4 .13mm ;腹部长 8.67mm ,宽 6.2 5mm .本新种及触形大疣蛛MacrothelepalpatorPocock ,190 1相似 ,但有以下不同 :1)阴门明显不同 (图Ⅰ ,6) ;2 )前者下唇宽约为长的 2倍 ,而后者的下唇宽至多为长的 1.5倍 ,长宽差别不如前者的显著 ;3 )疣突数量不同 ,前者在下唇及颚叶上的疣突远远少于后者的 (图Ⅰ ,3 ) .本新种以其模式产地而命名 .

A new species of the Genus Macrothele was collected from Xishuangbanna nature preservation zone, Yunnan Province, named Macrothele bannaensis sp. nov.. The measurements are in mm. The typespecimens are deposited in Hunan Biology Research Institue. Macrothele bannaensis sp. nov. (Fig. I, 1∼6). Holotype , Menglun, Xishuangbanna nature preservation zone, Jinghong City (22°N, 100° 48′ E), Yunnan Province, Nov.26,1997,leg. YAN Heng-mei;Paratypes 4 ,idem; 1 , the same collection locality, June 26, 1999,leg. Xu Xiang. Holotype , total length 16.00, cephalothorax 5.33x4.13, abdomen 8.67x6.25. The new species resembles Macrothele palpator Pocock, 1901, but can be distinguished from the latter by: 1) obviously different vulva(Fig. I,6); 2) width of labium twice as length(Fig. I ,3), that of the latter at most one point five times as length; 3) the number of cuspules on the labium and maxillary much less than that of the latter(Fig. I,3). The specific name is derived from its type locality.