Sinoderces luohanensis Li & Li sp. nov. Figs 3, 4, 21, 22

Types.

Holotype: ♂, outside of Luohan Cave, Suwei Town, Mu Village, Nanning City, Guangxi Zhuang Autonomous Region, China, 22°32.600'N, 108°03.390'E, 270 m, 9.V. 2015, Chen Z. and Li F. leg. Paratypes: 3♀, same data as holotype.

Etymology.

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

Diagnosis.

Sinoderces luohanensis sp. nov. resembles S. nawanensis in shape and size (Fig. 4 C–E). Males can be distinguished from the latter by the pointed tip of the conductor (vs. blunt tip in S. nawanensis) (Fig. 3). Females can be distinguished by the hairless upper part of abdomen (vs. a row of hairs on the same position in S. nawanensis) (Fig. 4B). The two pairs of spermathecae have a similar shape, but the terminus of the long pair of spermathecae bends upward in S. luohanensis sp. nov. (vs. bending downward in S. nawanensis) (Fig. 4A).

Description.

Male (holotype). Total length 1.66; carapace 0.66 long, 0.71 wide; abdomen 1.00 long, 0.64 wide. Carapace round, brown, with darker brown lateral margins. Carapace with large, brown, fork-shaped pattern in the middle (Fig. 4E). Clypeus brown. Cheliceral promargin with two teeth, followed by a lamina; retromargin with no tooth (Fig. 21B). Labium brown. Sternum brown. Legs brownish yellow, with dark brown joints. Leg measurements: I 8.32 (2.28, 0.25, 2.50, 2.16, 1.13) II 6.43 (1.84, 0.25, 1.88, 1.58, 0.88), III 5.05 (1.44, 0.25, 1.50, 1.25, 0.61), IV 7.26 (2.00, 0.25, 2.21, 1.90, 0.90). Abdomen elongated, wrinkled posteriorly. Spinnerets brown (Fig. 4E).

Male palp (Fig. 3 A–D): The overall structure is sickle-shaped. Conductor tip pointed. Embolus curved. Bulb yellow, oval. Conductor and embolus clearly separated, with bases at the distal end of the bulb. Terminal tibia hump with long hairs. Femur and trochanter light yellow with isolated hairs.

Female. Color similar to male, and body size slightly larger than males (Fig. 4 C–E). Abdomen darker than that in males. Clypeus brown. Carapace round, darker than that of males. Labium and sternum dark brown. Measurements: total length 2.20; carapace 0.64 long, 0.70 wide; abdomen 1.25 long, 0.55 wide. Legs brownish yellow, the joint is dark brown. Leg measurements: I 6.53 (1.75, 0.25, 2.00, 1.63, 0.90), II 5.20 (1.37, 0.25, 1.58, 1.25, 0.75), III 4.31 (1.13, 0.25, 1.25, 1.03, 0.65) IV 6.16 (1.72, 0.25, 1.91, 1.50, 0.78). Abdomen elongated, dorsum with white spots and wrinkles, ventrum with white rings. Epigyne pale yellow. Spinnerets brown.

Epigyne (Fig. 4A, B): Epigynal area lighter in color than other parts of the abdomen. Two pairs of elongated, curved spermathecae. Terminus of the lateral pair of spermathecae bends upward (Fig. 4A).

Distribution.

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

Natural history.

Collected at a cave entrance at an elevation of 196 m.