Sundalema khaorakkiat Zhao & Li sp. nov. Figures 26, 27, 33

Type material.

Holotype: ♀ (IZCAS), Thailand, Songkhla Province, Rattaphum District, Khao Rak Kiat Cave, 7.0724N, 100.2502E, elevation ca. 52 m, XI.2015, Z. Chen, G. Zhou and Q. Zhao leg. Paratypes: 2♂ and 2♀ (IZCAS), same data as holotype.

Other material examined.

1♀ (molecular voucher, IZCAS), same data as holotype.

Etymology.

The species name refers to the type locality; noun in apposition.

Diagnosis.

This species resembles S. acicularis comb. nov. but can be distinguished by the following characters: the eyes are vestigial (Figs 26B, 27A) (vs. ringed with black); the receptacle is coiled into 1.25 loops (Fig. 26A) (vs. 2.5 loops); the embolus is longer than the cymbium (Fig. 27C, D) (vs. shorter), and the palpal tibia/cymbium ratio is 0.4 (Fig. 27C, D) (vs. 0.45).

Description.

Female (holotype). Total length 1.25. Carapace 0.58 long, 0.50 wide. Abdomen 0.63 long, 0.55 wide. Carapace pale white (Fig. 26B). Six vestigial eyes (Fig. 26B). Chelicerae, legs, labium milky white, endites brown (Fig. 26B). Sternum milky white with sparse setae (Fig. 26B). Leg measurements: I 3.93 (1.21, 0.19, 1.21, 0.80, 0.52); II 3.52 (1.10, 0.19, 1.06, 0.72, 0.45); III 2.45 (0.73, 0.18, 0.69, 0.49, 0.36); IV 3.28 (1.03, 0.18, 0.92, 0.70, 0.45). Abdomen pale brown with a few long setae (Fig. 26B, C). Receptacle coiled into 1.25 loops, and neck much thinner than mesial part (Fig. 26A).

Male. Total length 1.17. Carapace 0.54 long, 0.48 wide. Abdomen 0.63 long, 0.50 wide. Eyes and coloration as in female (Fig. 27A). Leg measurements: I 4.08 (1.24, 0.19, 1.27, 0.86, 0.53); II 3.70 (1.13, 0.19, 1.15, 0.75, 0.48); III 2.67 (0.81, 0.16, 0.76, 0.56, 0.39); IV 3.48 (1.06, 0.17, 1.00, 0.76, 0.49). Palp: Tibia 1.65 times longer than patella, cymbium 2.06 times longer than tibia, 1.50 times longer than femur; cymbial apophysis dark brown and cone shaped (Fig. 27C); bulb ellipsoidal; embolus longer than cymbium (Fig. 27C, D).

Distribution.

Thailand (Songkhla, site 12 in Fig. 33), known only from the type locality.