中国红螯蛛属二新种(蜘蛛目:管巢蛛科)

TWO NEW SPECIES OF THE GENUS CHIRACANTHIUM FROM CHINA (ARANEAE: CLUBIONIDAE)

本文记述了我国红螯蛛属二新种。即精美红螯蛛,新种Chiracnthium exquistitum sp.nov.和麻花红螯蛛,新种Chiracanthiunt hypocytum sp.nov.。文中对模式标本进行了详细描述,并附有外生殖器结构图。模式标本保存在白求恩医科大学生物学教研室。

This paper deals with two new species of the genus Chiracanthium from China. All the type specimens are kept in the Department of Biology, Bethune Medical University. Chiracanthium exquistitum sp. nov. (Fig. 1, 2) Holotype: ♀ (75—1053), Hainan Province, Dec. 12, 1975, by Zhu. Female: Total length 10. 30mm. Carapace yellow. Leg formula: 1, 4, 2, 3. Abdomen without any special macula. Epigynum with a round cavity, and copulatory opening in it. Spermathecae ball shaped. Copulatory tube with four spirals. Male unknown. The new species resembles Chiracanthium japonicum Boes. et Str., 1906, but differs from the latter in vulva and epigynum. Chiracanthium hypocyrtum sp. nov. (Fig. 3, 4) Holotype: ♀ (83—610), Lancang County、Yunnan Province, July 16, 1983, by Zhu; paratype: 1♀ (H85—7), Jiangkou County, Guizhou Province, May 31, 1987, by Zhang, kept in the Department of Biology, Hunan Normal University. Female: Total length 14.69mm. Carapace yellowish brown. Cheliccrac with three promarginal teeth and two retromarginal teeth. Leg formula: 1, 4, 2, 3. Abdomen yellow. Epigynum with a cavity. Copulatory opening in the cavity. Spermathecae round shaped. Copulatory tube with 3 spirals. Male unknown. The new species similar to Chiracanthium japonicum Boes. et Str., 1906, but differs from the latter in vulva and epigynum.