Clubiona pollicaris, Wu, Pan-Long, Zheng, Guo & Zhang, Feng, 2015

Wu, Pan-Long, Zheng, Guo & Zhang, Feng, 2015, Two new species of the Clubionacorticalis-group from Yunnan Province, China (Araneae, Clubionidae), ZooKeys 496, pp. 15-25 : 17-20

Taxon classification Animalia Araneae Clubionidae

Clubiona pollicaris sp. n. Figs 13-16, 17-19, 23-27

Type material.

Holotype ♂, CHINA, Yunnan Province, Xishuangbanna Prefecture, Mengla County, Menglun Nature Reserve (710 m; 21°57.70'N, 101°11.89'E), 7 August 2007, Guo Zheng leg. Paratypes: 6 ♂, 6 ♀, same data as holotype.

Diagnosis.

The new species differs from all other Clubiona species by a very long retrolateral femoral apophysis (almost as long as femur) and resembles Clubiona qiyunensis (Figs 20-22; also see Wu and Zhang (2014): 211, f. 13-23), but differs by: a smaller and inconspicuous embolus; the much longer femoral apophysis (in Clubiona qiyunensis , femoral apophysis is short, less than diameter of femur); a thumb-shaped prolateral patellar apophysis; anteriorly situated spermathecae; and rectangular bursae (Figs 15-19, 23-27).

Etymology.

The species name is derived from the Latin word " pollicaris ", and refers to the prolateral patellar apophysis, which in ventral view is thumb-shaped.

Description.

Male. Total length 3.20-3.49. Holotype (Fig. 13) body 3.27 long; carapace 1.51 long, 1.45 wide; abdomen 1.61 long, 0.90 wide. Carapace brown. Median furrow longitudinal. Both anterior and posterior eye row recurved in dorsal view. Eye sizes and interdistances: AME 0.06, ALE 0.10, PME 0.09, PLE 0.08; AME–AME 0.06, AME–ALE 0.03, PME–PME 0.19, PME–PLE 0.08. MOA 0.21 long, front 0.19 wide, back 0.37 wide. Chelicerae brown, promargin with five teeth, retromargin with four teeth. Both endites and labium brown, longer than wide. Sternum 0.83 long, 0.56 wide. Abdomen oval, brown, with conspicuous anterior tufts of hairs, dorsum with fine yellow hairs. Legs brown, both tibia I and II with two pairs of ventral spines, both metatarsi I and II with one pair of ventral spines. Measurements of legs: I 3.09 (0.84, 0.47, 0.83, 0.62, 0.33), II 3.46 (0.90, 0.50, 1.02, 0.69, 0.35), III 2.92 (0.84, 0.43, 0.63, 0.76, 0.26), IV 4.11 (1.18, 0.50, 0.96, 1.15, 0.32).

Palp (Figs 15-16, 19, 25-27). Femur modified, with long and thin retrolateral apophysis originating from median part, apophysis longer than tibia and subequal in length to femur; patella twice longer and 1.5 wider than tibia, with a round apophysis and thumb-shaped prolateral apophysis; tibia without apophyses; cymbium shorter than tegulum; tegulum inflated; sperm duct obvious, almost straight in retrolateral view; embolus short, originating from the apical tegulum prolaterally, directed almost horizontally.

Female. Total length 3.12-3.92. One paratype (Fig. 14) measured: body 3.90 long, carapace 1.52 long, 1.13 wide; abdomen 2.09 long, 1.18 wide. Eye sizes and interdistances: AME 0.07, ALE 0.09, PME 0.08, PLE 0.07; AME–AME 0.08, AME–ALE 0.05, PME–PME 0.20, PME–PLE 0.12. MOA 0.21 long, front 0.20 wide, back 0.35 wide. Sternum 0.85 long, 0.57 wide. Measurements of legs: I 2.69 (0.84, 0.38, 0.64, 0.51, 0.32), II 3.09 (0.90, 0.46, 0.79, 0.60, 0.34), III 2.63 (0.80, 0.35, 0.55, 0.67, 0.26), IV 3.92 (1.02, 0.50, 0.93, 1.10, 0.37). Coloration slightly lighter than in male; other characters as in male.

Epigyne (Figs 17-18, 23-24). Copulatory openings small, located almost in the centre of the epigynal plate; in ventral view copulatory ducts inconspicuous; spermathecae long, tubular and sinuous; bursae large, membranous, almost rectangular.

Distribution.

China (Yunnan).

Comments.

Retrolateral femoral apophysis is known only in three species of Clubionidae : Clubiona pollicaris , Clubiona qiyunensis and Clubiona brachyptera .