Qiongthela baishensis Xu

Xu, Xin, Liu, Fengxiang, Chen, Jian, Ono, Hirotsugu, Li, Daiqin & Kuntner, Matjaz, 2015, A genus-level taxonomic review of primitively segmented spiders (Mesothelae, Liphistiidae), ZooKeys 488, pp. 121-151 : 131-132

Taxon classification Animalia Araneae Liphistiidae

Qiongthela baishensis Xu sp. n. Figures 22-27

Types.

Male holotype (XUX-2012-087, matured 10 October 2012 at CBEE, College of Life Sciences, Hubei University) and two male and two female paratypes from Nangaoling Forest Plantation, Baisha County, Hainan Province, China; 19.24°N, 109.38°E, 463 m, collected 18 July 2012 by D. Li, F. Liu and X. Xu, deposited at NZMC, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.

Etymology.

The species epithet refers to Baisha, the species type locality.

Diagnosis.

Unlike other Qiongthela species, males of Qiongthela baishensis possess three parallel serrated distal edges of the contrategulum (Figures 25, 26), and females have two pairs of receptacular clusters, the median pair larger than the lateral one, with very short or no stalks (Figure 27).

Description.

Male (holotype). Carapace and opisthosoma light brown; tergites darker; with a clear fovea; sternum narrow, nearly twice as long as wide; a few long pointed hairs running over ocular mound in a longitudinal row; chelicerae robust with promargin of cheliceral groove containing 10 denticles of variable size; legs with strong hairs and spines; opisthosoma with 12 tergites, the first 2-7 distinctly larger and the fifth largest; 7 spinnerets. Measurements: BL 16.75, CL 6.70, CW 6.65, OL 9.90, OW 7.45; ALE> PLE> PME> AME; leg I 19.76 (6.15 + 2.55 + 4.35 + 4.35 + 2.36), leg II 20.70 (5.59 + 2.67 + 4.24 + 5.45 + 2.75), leg III 21.16 (5.25 + 2.13 + 4.12 + 6.45 + 3.21), leg IV 26.03 (7.38 + 2.75 + 5.78 + 7.05 + 3.07).

Palp: Cymbium with a projection; prolateral side of paracymbium unpigmented and unsclerotised, numerous setae and spines at the tip of paracymbium (Figures 22, 24). Contrategulum with three parallel distal edges, row of denticles on inner edge running down to ventro-proximal margin of contrategulum and the outer row forming a sharp edge without denticles (Figures 22, 25-26). Tegulum with a very long, wide base, pointed, distally directed marginal apophysis with a sharp edge, and retrolaterally with a proximally directed terminal apophysis with a slightly short dentate row and continuously narrowing to a rounded, hooked apex (Figures 22-26). Conductor situated ventro-proximally on embolus, with a bent apex (Figures 22, 25-26). Embolus largely sclerotised, prolaterally with numerous longitudinal ribs (Figures 22-26).

Female (paratype). Colouration as in male; promargin of robust chelicerae with 9 strong denticles variable in size; legs and opisthosoma as in the male; 7 spinnerets. Measurements: BL 13.30-14.15, CL 4.51-6.23, CW 4.63-5.82, OL 7.20-7.45, OW 4.33-5.08; ALE> PLE> PME> AME; palp 10.25 (3.65 + 1.55 + 2.30 + 2.75), leg I 12.48 (4.25 + 1.95 + 2.53 + 2.55 + 1.20), leg II 12.15 (3.75 + 2.07 + 2.25 + 2.65 + 1.43), leg III 12.42 (3.55 + 2.12 + 2.03 + 3.07 + 1.65), leg IV 19.20 (5.45 + 2.65 + 3.45 + 5.10 + 2.55).

Female genitalia: Two pairs of receptacular clusters along the anterior margin of bursa copulatrix, the median pair larger than the lateral one, with very short or no stalks (Figure 27).