Sinoderces dewaroopensis Li & Li sp. nov. Figs 7, 8, 21, 22

Types.

Holotype: ♂, Dewaroop Cave 1, Pak Chong Distict, Musee Village, Nakhon Ratchasima Province, Thailand, 14°33.708'N, 101°24.064'E, 397 m, 23.X.2014, Zhao H., Li Y. and Chen Z. leg. Paratype: 1♀, same data as holotype.

Etymology.

The specific name refers to the name of the cave; adjective.

Diagnosis.

Sinoderces dewaroopensis sp. nov. can be distinguished from all other known species of the genus by the large apical protrusion on the cymbium (Fig. 7) and a characteristically lamellar embolus. Females can be distinguished by one pair of spherical spermathecae (Fig. 8A)

Description.

Male (holotype). Total length 1.44; carapace 0.76 long, 1.69 wide; abdomen 1.06 long, 0.54 wide. Carapace round, pale yellow. The overall color is light yellow (Fig. 8E). Cheliceral promargin with one tooth, connected to a lamina; retromargin with one small tooth (Fig. 21D). Clypeus light brown (Fig. 8E). Labium and sternum almost transparent. Legs light yellow, with dark yellow joints. Legs measurements: I 11.03 (3.20, 0.31, 3.28, 3.16, 1.08), II 11.03 (3.08, 0.31, 3.36, 3.20, 1.08), III 11.63 (3.32, 0.31, 3.72, 3.20, 1.08), IV8.07 (2.28, 0.31, 2.44, 2.20, 0.84). Abdomen elongated, with pale yellow (Fig. 8E). Spinnerets pale yellow.

Male palp (Fig. 7 A–D): Bulb pale yellow, conical. Embolus arising distally from the bulb, slightly curved; no conductor; tibia with a stout apical protrusion, tipped with many bristles (Fig. 7A). Femur and trochanter light yellow with few hairs.

Female (one of the paratypes). Size and color similar to male, but slightly larger and darker (Fig. 8C, D). Total length 1.55; carapace 0.55 long, 0.65 wide; abdomen 1.00 long, 0.55 wide. Carapace round, yellow. Clypeus brown (Fig. 8C). Labium and sternum yellow. Legs light yellow, the joint is dark. Leg measurements: I 9.14 (2.48, 0.25, 2.72, 2.53, 1.16) II 7.06 (1.88, 0.25, 2.05, 1.98, 0.90) III 5.71 (1.53, 0.25, 1.65, 1.50, 0.78), IV 7.81 (2.18, 0.25, 2.33, 2.00, 1.05,). Abdomen elongated, dorsum with black spots and wrinkles, ventrum darkens posteriorly (Fig. 8C). Spinnerets yellow.

Epigyne (Fig. 8A, B): Some bristles on the epigynum (Fig. 8B). It has one pair of global spermathecae (Fig. 8A).

Distribution.

Known only from the type locality (Fig. 22).

Natural history.

Collected at a cave entrance at an elevation of 397 m.