Talaus zhangjiangkou Yao & Liu sp. nov.

Fig. 10

Type material.

Holotype ♂, China: Fujian Province: Zhangzhou City, Yunxiao County, Dongxia Town, Fujian Zhangjiangkou National Mangrove Nature Reserve, 23°55'38.08"N, 117°24'52.91"E, 4 March 2023, H.T. Song, Z.H. Qi, R.X. Su, and B. Ding leg. (Tho-347, ASM-JGSU).

Etymology.

The specific name is taken from the type locality; noun in apposition.

Diagnosis.

This new species is similar to that of Talaus triangulifer (Benjamin 2020: 414, figs 2I, J, 7A, B) in having the longer, broad-based embolus and the configuration of the tibial apophyses, but can be easily distinguished from it by the retrolateral tibial apophysis with a distinctly curved tip directed mostly dorsally as seen in retrolateral view (vs directed mostly ventrally) and the embolus with a furcate tip (vs pointed) in ventral view (Fig. 10E-G).

Description.

Habitus (Fig. 10A, B). Total length 2.24. Carapace (Fig. 10A) red brown, length 1.07, width 1.14, with densely short setae. Eyes (Fig. 10C) diameters and interdistances: AME 0.07, ALE 0.12, PME 0.05, PLE 0.08; AME-AME 0.12, ALE-AME 0.31, PME-PME 0.32, PLE-PME 0.3, AME-PME 0.17, AME-PLE 0.5, ALE-ALE 0.88, PLE-PLE 0.88, ALE-PLE 0.21. MOA 0.29 long, front width 0.25, back width 0.41. Chelicerae red brown, straight, robust, without retromarginal or promarginal teeth. Endites yellow brown, longer than wide. Labium yellow brown, longer than wide. Sternum red brown, longer than wide, with long dense setae. Legs red brown except yellow metatarsi and tarsi (Fig. 10A, B); measurements: I 3.24 (1, 0.42, 0.77, 0.61, 0.44); II 3.49 (1.04, 0.48, 0.81, 0.7, 0.46); III 2.23 (0.68, 0.32, 0.54, 0.38, 0.31); IV 2.08 (0.67, 0.3, 0.48, 0.37, 0.26); spination: I Pa: d1, p1; Ti: d3, p2, r3, v2; Mt: d3, p1, r1, v4; II Ti: d3, p3, r3, v2; Mt: d3, p2, r1, v3; III Pa: d1; Ti: d1, r1, v1; Mt: d2, p1, r1, v1; IV: Ti: d1, r1; Mt: d1, p1, r1, v1. Abdomen (Fig. 10A, B) 1.17 long, 1.37 wide, ovoid, with a round and a fan-shaped black-brown spots dorsally; venter yellow, with black sloping stripes.

Palp (Fig. 10D-G). Ventral tibial apophysis digitiform, shorter than tibia, apex slightly curved retrolaterally. Retrolateral tibial apophysis nearly as long as tibia, horn-like, slightly curved in retrolateral view, directed mostly dorsally. Tegular ridge arising from ~ 12 o’clock . Embolus stout, with broad base, apically furcate, arising from 9 o’clock and ending at ~ 1 o’clock .

Female. Unknown.

Distribution.

Known only from the Fujian Province of China (Fig. 12).