Coreodrassus forficalus, Zhang, Feng & Zhu, Ming-Sheng, 2008

Zhang, Feng & Zhu, Ming-Sheng, 2008, Review of the genus Coreodrassus (Araneae: Gnaphosidae) from China, Zootaxa 1761, pp. 30-36 : 34-35

Coreodrassus forficalus sp. nov.

Figs 7–13

Type material: Holotype male from Burqin County, N 47°42’ E 86°54’, Xinjiang Uygur Autonomous Region, China, August 24, 2006, F. Zhang & H. Q. Ma leg. ( MHBU).

Etymology: The specific name comes from the Latin ‘forfex’, meaning scissors referring to the forkshaped tip of patellar apophysis.

Diagnosis: This new species resembles C. lancearius ( Simon, 1893) , but can be distinguished by the forkshaped tip of the patellar apophysis, by the relatively large median apophysis, and by the bifid retrolateral tibial apophyses with tips not crossing each other in ventral view.

Description: MALE (holotype) ( Fig. 7 ). Total length 6.50: cephalothorax 3.20 long, 2.25 wide; abdomen 3.38 long, 1.89 wide. Eye sizes and interdistances: AME 0.16, ALE 0.13, PME 0.16, PLE 0.09; AME–AME 0.12, AME–ALE 0.03, PME–PME 0.04, PME–PLE 0.13, ALE–PLE 0.10. MOA 0.38 long, front width 0.38, back width 0.36. Clypeus height 0.14. Leg formula: 4123.

Leg measurements:

Male palp ( Figs 11–13 ) with retrolateral patellar apophysis long, forked at distal end, with bifid retrolateral tibial apophysis, upper branch long, beak-shaped in retrolateral view, lower branch short. Embolus long, originating prolaterally, tip hidden behind conductor ( Fig. 12 ). Conductor small, membranous. Median apophysis large, apex pointing retrolaterally, sclerotized ( Figs 12–13 ).

Female unknown.

Distribution: Known from the type locality only.

Figures

FIGURES 7 – 13. Coreodrassus forficalus sp. nov., male. 7. Body, dorsal view. 8. Endites, labium and sternum, ventral view. 9. Left chelicera, posterior view. 10. Eye region, dorsal view. 11. Left palp, dorsal view, showing tibial and patellar apophyses. 12. Left palp, ventral view. 13. Left palp, retrolateral view. C = conductor; E = embolus; MA = median apophysis; RPA = retrolateral patellar apophysis; RTA = retrolateral tibial apophysis; SD = sperm duct; ST = subtegulum; T = tegulum. Scale bars: 7 – 8, 1 mm; 9, 0.5 mm; 10 – 13, 0.4 mm.