Etymology. The species is named after Yan Qing, a character in the classic Chinese novel Outlaws of the Marsh; noun in apposition.

Diagnosis. The new species is similar to F. valentine by males having the retrolateral tibial apophysis with an internal branch. However, the males of the new species can be distinguished from F. valentine by the retro-proximal cymbial process in ventral view protrudes from the cymbium. (vs. indistinct), terminal part of dorsal tibial apophysis with a hook (vs. almost straight) and tegular apophysis 2 times longer than wide (vs. as long as wide). Females of the new species can be distinguished from F. valentine by the copulatory openings separated by a septum (vs. touching each other).

Description. Male (holotype). Total length 2.46, carapace1.21 long, 0.91 wide, opisthosoma 1.25 long, 0.86 wide. Eye sizes and interdistances: AME 0.02, ALE 0.08, PME 0.07, PLE 0.07, AME–AME 0.02, AME–ALE 0.02, PME–PME 0.05, PME–PLE 0.02, AME–PME 0.01, ALE–PLE 0.01. Chelicerae with 3 promarginal and 5 retromarginal teeth. Leg measurements: I 3.20 (0.95, 1.16, 0.62, 0.47), II 2.84 (0.84, 0.99, 0.56, 0.45), III 2.51 (0.75, 0.80, 0.55, 0.41), IV 3.53 (0.99, 1.21, 0.80, 0.53).

Coloration (Fig. 16A). Carapace yellow-brown, cephalic region brown to dark brown, thoracic region pale yellow. Cervical and radial furrows indistinct. Chelicerae dark brown. Endites and labium brown. Sternum yellowish brown. Legs brown with black setae. Opisthosoma oval, gray, without black pattern, covered with long gray setae. Spinnerets gray.

Palp (Fig. 12). Femur almost 4 times longer than patella. Patella as long as tibia. Retrolateral tibial apophysis divided: wide ventro-retrolateral tibial apophysis and narrow dorsal retrolateral tibial apophysis with a seta. Dorsal tibial apophysis thin basally, dilated centrally, knife shaped, tip recurved. Fold present. Retro-proximal cymbial outgrowth obvious. Tegulum with keel. Tegular apophysis contracted medially, darker at tip. Conductor partially wrapped around embolus, tip pointed. Embolus originating at approximately 9-o’clock -position, with broad, lamellar process medially.

Female (Ar44802). Total length 1.92, carapace 1.03 long, 0.75 wide, opisthosoma 1.26 long, 0.91 wide. Eye sizes and interdistances: AME 0.02, ALE 0.08, PME 0.06, PLE 0.08, AME–AME 0.01, AME–ALE 0.01, PME–PME 0.07, PME– PLE 0.02, AME–PME 0.03, ALE–PLE 0.01. Chelicerae with 3 promarginal and 5 retromarginal teeth. Leg measurements: I 2.39 (0.74, 0.89, 0.44, 0.32), II 2.17 (0.70, 0.75, 0.42, 0.30), III 1.90 (0.60, 0.62, 0.41, 0.27), IV 2.62 (0.76, 0.95, 0.58, 0.33).

Coloration (Fig. 16B). Same as male.

Epigyne (Fig. 13). Epigyne about 2 times wider than long, copulatory ducts inconspicuous. Spermathecae almost 2 times longer than wide, kidney shaped. Fertilization ducts transverse.

Material examined. Holotype ♂ (IZCAS-Ar44801), China: Xizang, Nyingchi City, Nyingchi Co., Bayi Town, nr. St. Biri Moutain (29.8556°N, 94.7990°E, elev. 2900 m), 11.VII.2013, Qi Cao and Linghui Lin leg. Paratypes. 8♀ (IZCASAr44802–Ar44809), same data as holotype.

Biology. Living amongst the moss (Fig. 17).