我国丝蛛属一新种(蜘蛛目:平腹蛛科)

A NEW SPECIES OF THE GENUS SERGIOLUS (ARANEAE,GNAPHOSIDAE) FROM CHINA

本文记述安徽皖南林区丝蛛属(Sergiolus)一新种:宋氏丝蛛,并附有鉴别特征图。

This paper deals with a new species of the genus Sergiolus,which are the first record from China.The holotype deposited in the Department of Biology, Huizhou Junior Teacher′s College.The allotype and paratype are deposited in the Institute of Zoology,Academia Sinica. Sergiolus songi sp.nov.(Figs.1-4) Holotype♂,allotype♀,paratype♂ were collected from Mt.Huangshan (29°52′ N,118°26′E),Anhui Province,June 1984. Holotype:Total length 6.29,body length 6.20,Carapace 3.00 long,1.95 wide, CPWI 60.Abdomen 3.20 long,1.35 wide.Eye size and interdistance:AME 0.09,ALE 0.11,AME-AME0.08,AME-ALE0.04;PME0.10,PLE0.11,PME-PME 0.12,PME- PLE 0.08;MOQ length 0.30,front width 0.26,back width 0.32.Carapace chestnut brown.Sternum truncated in front.Abdomen relatively Slender,dark,with one trasverse white band and a pair white patch.Enbolus as in figure 1-2. Allotype:The shape,colour,and leg-formula of the female as the male.Epigynum as in figure 3-4. This new species closely resembles S.stella Chamberlin 1922 but is distinctly different from the latter in the following points:1.The tip of the membranous cond- uctor pointed;2.The front of spermatheca oblique;and 3.The abdomen of the speci- mens relatively slender than that of the latter.