Siamlema suea Zhao & Li sp. nov. Figures 22, 23, 33

Type material.

Holotype: ♂ (IZCAS), Thailand, Yala Province, Mueang District, Suea Cave, 6.5226N, 101.2311E, elevation ca. 43 m, XI.2015, Z. Chen, G. Zhou, and Q. Zhao leg. Paratypes: 1♂ and 4♀ (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. changhai sp. nov. but can be distinguished by the following: six eyes ringed with black or eyes vestigial (Figs 22A, 23B) (vs. absent); the lack of a bulbal apophysis (Fig. 22B-D) (vs. present), having a spine on the palpal tibia retrolaterally (Fig. 22D) (vs. absent), the absence of a femoral dorsal spine (Fig. 22C, D) (vs. present); and a globular receptacle (Fig. 23A) (vs. tube-shaped).

Description.

Male (holotype). Total length 1.11. Carapace 0.46 long, 0.41 wide. Abdomen 0.60 long, 0.50 wide. Carapace light brown (Fig. 22A). Six vestigial eyes (Fig. 22A). Chelicerae, legs, labium, and endites brown. Sternum bright brown with sparse setae. Leg measurements: I 3.46 (1.03, 0.16, 1.05, 0.74, 0.48); II 2.92 (0.90, 0.16, 0.83, 0.60, 0.43); III 2.07 (0.63, 0.13, 0.59, 0.40, 0.32); IV 2.77 (0.85, 0.16, 0.77, 0.59, 0.40). Abdomen brown with a few long setae (Fig. 22A).

Palp. Tibia 1.38 times longer than patella, cymbium 0.94 times shorter than tibia, femur 1.17 times longer than cymbium (Fig. 22C, D); cymbial apophysis stout and cone shaped (Fig. 22C); tibia with 2 spines, one dorsal spine distally, the other bifurcate, located retrolaterally medially (Fig. 22D); patella with retrolateral semi-round extension mesially (Fig. 22D); bulb droplet shaped as in Fig. 22C, D; embolus strongly sclerotized, and tiny in comparison to bulb.

Female. Total length 1.20. Carapace 0.45 long, 0.41 wide. Abdomen 0.70 long, 0.66 wide. Coloration as in male (Fig. 23B, C). Six eyes ringed with black (Fig. 23B). Leg measurements: I 3.15 (0.94, 0.16, 0.97, 0.61, 0.47); II 2.79 (0.84, 0.16, 0.81, 0.55, 0.43); III 2.02 (0.62, 0.13, 0.56, 0.38, 0.33); IV 2.73 (0.85, 0.14, 0.76, 0.56, 0.42). Abdomen brown (Fig. 23B). Neck of receptacle umbrella-shaped, and distal part of receptacle globular (Fig. 23A).

Distribution.

Thailand (Yala, site 8 in Fig. 33), known only from the type locality.