Qiongthela wuzhi, Xu, Xin, Liu, Fengxiang, Kuntner, Matjaz & Li, Daiqin, 2017

Xu, Xin, Liu, Fengxiang, Kuntner, Matjaz & Li, Daiqin, 2017, Four new species of the primitive segmented spider genus Qiongthela from Hainan island, China (Mesothelae, Liphistiidae), ZooKeys 714, pp. 1-11 : 6-9

Qiongthela wuzhi sp. n. Fig. 4

Holotype.

Male (XUX-2012-109, matured 4 October 2012 at CBEE, College of Life Sciences, Hubei University), Yongxun Village, Shuiman Town, Wuzhishan City, Hainan Province, China, 18.90°N, 109.63°E, 551 m, collected 25 July 2012 by D. Li, F. Liu and X. Xu, deposited at CBEE, College of Life Sciences, Hubei University, Wuhan, China.

Paratypes.

One female (XUX-2012-108) collected at the same locality, collected 25 July 2012 by D. Li, F. Liu and X. Xu.

Etymology.

The species epithet, a noun in apposition, refers to the type locality.

Diagnosis.

Male of this new species differs from Q. jianfeng sp. n. by the contrategulum with three distal edges (Fig. 4H, J), the basal angle between the two apophyses of tegulum more than 90° (Fig. 4I), and the smooth distal margin of embolus (Fig. 4I). It differs from Q. baishensis , Q. australi,s and Q. nui by three distal margins of contrategulum (Fig. 4H, J). Females of this new species can be distinguished from the other species of Qiongthela by the receptacular clusters with very short genital stalks, and from Q. bawang sp. n. by the irregular shapes of receptacular clusters (Fig. 4D, E). The DNA barcode of the paratype (XUX-2012-108) is available on GenBank (Genbank accession code KP229812) for future identification. The DNA barcodes of the holotype (XUX-2012-109) and paratype (XUX-2012-108) are identical (the K2P distance between the two sequences is zero).

Description.

Male (holotype) (Fig. 4C). Carapace black; opisthosoma light brown; 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 with eight denticles of variable size; legs furnished with strong hairs and spines; opisthosoma with 12 tergites, the first 2-7 close to each other and larger than others; seven spinnerets. Measurements: BL 14.75, CL 6.20, CW 6.45, OL 9.65, OW 7.45; ALE> PLE> PME> AME; leg I 17.71 (5.03 + 2.52 + 3.86 + 4.50 + 1.80), leg II 17.88 (5.00 + 2.35 + 3.67 + 4.48 + 2.38), leg III 18.87 (4.65 + 2.55 + 3.52 + 5.45 + 2.70), leg IV miss.

Palp. Prolateral side of paracymbium unpigmented and unsclerotised, many setae situated at the tip of paracymbium (Fig. 4F. G). Contrategulum with a proximally irregular dentate edge and three distal edges, the inner one dentate, very short, the middle one dentate, running down to the proximally irregular dentate edge of contrategulum, the outer one sharp, fused with the inner one at the middle portion of the middle edge (Fig. 4 H–J). Tegulum with a wide base, pointed, distally directed marginal apophysis with a sharp edge, with a proximally directed terminal apophysis narrowing to a slightly bent apex, and the dorsal side of terminal apophysis with dentate edge (Fig. 4F, G, I, J). Embolus largely sclerotised, with a wide, flat opening, and a sharp distal edge (Fig. 4 F–J).

Female (Fig. 4B). Colouration of carapace and opisthosoma reddish dark; female similar to male except larger than male in size; chelicerae robust with promargin of cheliceral groove with 10 strong denticles of variable size; legs furnished with strong hairs and spines; opisthosoma with 12 tergites, tergites larger than that of male; 7 spinnerets. Measurements: BL 20.35, CL 10.35, CW 8.55, OL 11.25, OW 8.65; ALE> PLE> PME> AME; palp 18.28 (6.35 + 3.18 + 4.00 + 4.75), leg I 21.27 (7.05 + 3.75 + 4.12 + 4.48 + 1.87), leg II 20.06 (6.67 + 3.27 + 3.62 + 4.45 + 2.05), leg III 20.82 (6.18 + 3.75 + 3.35 + 5.07 + 2.47), leg IV 30.54 (8.90 + 4.50 + 5.51 + 8.13 + 3.50).

Female genitalia. The two pairs of receptacular clusters along the anterior margin of bursa copulatrix, irregular receptacular clusters with very short genital stalks (Fig. 4D, E).

Distribution.

Hainan (Wuzhishan), China.