内蒙古蜘蛛1新种及2种单性新发现(蛛形纲:蜘蛛目)

ONE NEW SPECIES AND TWO NEW DISCOVERIES ON THE MALE OR FEMALE SPIDERS (ARACHNIDA:ARANEAE) FROM INNER MONGOLIA OF CHINA

报道了采自内蒙古地区的3种蜘蛛.狼蛛科(Lycosidae)1新种:雪林舞蛛(Alopecosaxuelinsp.nov.)以及园蛛科(Araneidae)梭园蛛(AraneuscircidiusYinetal.,1990)的雄蛛和逍遥蛛科(Philodromidae)内蒙狼逍遥蛛(ThanatusneimongolUrita＆Song,1987)的雌蛛.

The present paper deals with three species of the spiders from Inner Mongolia.Among them,a new species of the genus Alopecosa belonging to the family Lycosidae; a new discovery of the male of Araneus circidius Yin et al.,1990 (Araneidae) and a new discovery of the female of Thanatus neimongol Urita & Song,1987 (Philodromidae).Type specimens are deposited in the College of Life Sciences and Technology,Inner Mongolia Normal (University.)All measurements given are in millimeters. ① Alopecosa xuelin sp. nov. Holotype: Male, Xuelinzi, Helan Mt.,Alxa League, (38.7°N, (105.8°E)),(Inner) Mongolia,26 May,1992,coll.Zhao Yong-wen; paratype 3 males,the same data as in holotype. Male total length 10.03～10.71.Holotype: total length 10.03,cephalothorax 5.17 long,cephalothorax 3.24 wide,abdomen 5.08 long,abdomen 3.15 wide.This new species resembles Alopecosa auripilosa (Schenkel, 1953),but can be separated from the latter by the median apophysis fluted-shaped in new species, while that lamellar in the latter. Etymology: The specific name refer to the type locality. ② Araneus circidius Yin et al.,1990 (Male, new discovery).Araneus cercidius Yin et al., 1990: 20, f. 47-50; Yin et al., 1997: 135, f. 50a-d; Song, Zhu & Chen, 1999: 237, f. 136I-K. 147H. Females total length 5.40～6.03. Male total length 3.69～4.32. Examing specimen: 36♀30♂, Ar Horqin Banner, Chifeng City, Inner Mongolia, China, 27,July. 1998, coll. Tang Gui-Ming. ③ Thanatus neimongol Urita & Song, 1987 (Female, new discovery). Thanatus neimongol Urita & Song, 1987: 35, fig. 17; Song, Zhu & Chen, 1999: 478, fig. 273K. Males total length 4.10～5.71. Female total length 7.75. cephalothorax 2.70 long,cephalothorax (2.40) wide,abdomen 5.05 long,abdomen 3.60 wide. Examing specimen: 1♀2♂, Helan mountain, Alxa League, Inner Mongolia, 14 Augue. 1996, coll. Tang Gui-ming; 2♂1♀,12 May, 1992, cool. Zhao Yong-wen; 1♂,Daqing mountain, Huhhot, Inner Mongolia, 19, May 1984. coll. Urita.