Sinoderces saraburiensis Li & Li sp. nov. Figs 17, 18, 21, 22

Types.

Holotype: ♂, Tham Bo Pla Cave, Kaeng Koi District, Song Khon Village, Saraburi Province, Thailand, 14°39.625'N, 100°58.115'E, 73 m, 20. X. 2014, Zhao H., Li Y. and Chen Z. leg.

Etymology.

The specific name is derived from the type locality; adjective.

Diagnosis.

Sinoderces saraburiensis sp. nov. can be distinguished from all other known species by the swan-like shape of the palp (Fig. 17). Embolus heavily sclerotized. Palpal tibia with a slight bump. No conductor.

Description.

Male (holotype). Total length 1.82; carapace 0.65 long, 0.72 wide; abdomen 1.18 long, 0.56 wide. Carapace round, light yellow, with dark lateral margins. Anterior margin of cephalic region distinctly elevated. Clypeus yellow. Chelicerae light yellow. Cheliceral promargin with one tooth, connected to a lamina; retromargin toothless (Fig. 21I). Endites dark yellow. Labium yellow. Sternum dark yellow. Legs light yellow. Leg measurements: I 13.61 (3.75, 0.31, 4.05, 4.15, 1.35), II 9.49 (2.50, 0.31, 2.81, 2.78, 1.09,). III 6.75 (1.90, 0.25, 2.20, 1.80, 0.60), IV 9.87 (2.72, 0.25, 3.00, 2.81, 1.09). The color of the abdomen gradually darkens posteriorly.

Male palp (Fig. 17): Bulb pale yellow, ovate. Embolus shaped like a swan; the top of tarsus darker than the rest. Embolus is grossly extended and twisted apically. No conductor. Tibia with a slight bump densely covered by bristles. Femur with sparse hairs.

Distribution.

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

Natural history.

Collected in a cave at an elevation of 73 m.