方胫莫蛛新种记述及其与毛笔莫蛛的比较(蜘蛛目,皿蛛科)

记述中国皿蛛科1新纪录属和1新种：莫蛛属Moebelia Dahl,1886,方胫莫蛛 Moebelia rectangula sp.nov.模式标本保存于中国科学院动物研究所,北京. 方胫莫蛛,新种Moebelia rectangula sp.nov.（图1～11） 正模♂,河北嶂石岩, 2005-09-12 ,李枢强采;副模8♀♀,12 ♂♂,河北嶂石岩,李枢强等采; 4♀♀,7♂♂,北京门头沟,王倩等采。 新种与产自芬兰的毛笔莫蛛Moebelia penicillata（图12～22）相近,两者主要区别：前者触肢胫节无毛笔状毛簇;前者触肢前侧胫节突方形,后者锥形;前者超盾片突无三角形片状突起;前者外雌器后缘比后者宽;前者纳精囊之间的距离窄于后者。     

中国微蛛亚科三新纪录属三新种记述(蜘蛛目,皿蛛科)(英文)

记述中国微蛛亚科3新纪录属3新种:巨突蛛属Diplocephaloides Oi,1960,钩状巨突蛛D.uncatus sp.nov.;圆膝蛛属GongylidiumMenge,1868,皱褶圆膝蛛G. rugulosasp.nov.和良次蛛属OiaWunderlich,1973,端突良次蛛O.breviprocessiasp. nov.。模式标本均保存于中国科学院动物研究所,北京。     

苍白拟幽灵蛛记述(蜘蛛目:幽灵蛛科)

描述苍白拟幽灵蛛Smeringopus pullidus (Blackwall,1858)雄蛛。     

Female genital mutilation and monandry in an orb-web spider

Monandry, in which a female has only one mating partner during the reproductive period, is established when a female spontaneously refrains from re-mating, or when a partner male interferes with the attempts of a female to mate again. In the latter case, however, females often have countermeasures against males, which may explain why polyandry is ubiquitous. Here, I demonstrate that the genital appendage, or scape, of the female orb-web spider (Cyclosa argenteoalba) is injured after her first mating, possibly by her first male partner. This female genital mutilation (FGM) permanently precludes copulation, and females appear to have no countermeasures. FGM is considered to confer a strong advantage to males in sexual conflicts over the number of female matings, and it may widely occur in spiders.