Synagelides yunchangi sp. nov.

Figs 37, 38, 47

Type material.

Holotype ♂ (TRU - JS 0795), China: • Guangxi Zhuang Autonomous Region, Laibing City, Jinxiu Yao Autonomous County, Shengtangshan Scenic Area (23°58.05'N, 110°6.53'E, ca 1520 m), 11. X. 2021, A. L. He et al. leg . Paratypes • 4 ♂ 2 ♀ (TRU - JS 0796–0801), same data as for holotype .

Etymology.

The specific name is after Mr. Guan Yunchang, who is one of the famous Shu Generals in the Three Kingdoms of ancient China; noun (name) in the genitive case.

Diagnosis.

Synagelides yunchangi sp. nov. resembles that of S. gambosus Xie & Yin, 1991, in having very similar copulatory organs, but can be distinguished by the following: 1) ratio of the constricted portion of median apophysis (MA) to the broadest portion ~ 1 / 2 in retrolateral view (Fig. 37 B) vs ~ 1 / 3 (Peng 2020: fig. 326 d); 2) presence of an U-shaped incision (UI) on the anterior margin of embolic disc (Fig. 37 C) vs very shallow, near C-shaped incision (Peng 2020: fig. 326 b); 3) septum (Se) almost Y-shaped, and ~ 3 / 5 of atrial width (Fig. 38 A – C) vs approximately T-shaped, and> 4 / 5 of atrial width (Peng 2020: fig. 326 f); 4) atrial ridge (AR) approximately auricle-shaped (Fig. 38 A – C) vs approximately L-shaped (Peng 2020: fig. 326 f); 5) presence of a pair of anterolateral, pale stripes on dorsum of abdomen (Fig. 36 E, G) vs pair of round spots (Peng 2020: fig. 326 a).

Description.

Male (Figs 37, 38E, F, H, I). Total length 3.87. Carapace 1.85 long 1.34 wide. Abdomen 1.96 long, 1.05 wide. Eye sizes and interdistances: AME 0.45, ALE 0.25, PLE 0.21, AERW 1.36, PERW 1.40, EFL 1.11. Legs: I 4.41 (1.38, 1.15, 1.10, 0.50, 0.28), II 2.94 (0.88, 0.45, 0.68, 0.63, 0.30), III 3.19 (0.93, 0.45, 0.73, 0.78, 0.30), IV 4.19 (1.15, 0.50, 1.13, 1.08, 0.33). Carapace red-brown, with longitudinal, anteromedian, paired, dark patches on cephalon. Legs slender, with four and two pairs of ventral spines on tibiae and patellae I. Dorsum of abdomen brown at anterior half and dark posteriorly, with pair of anterolateral pale stripes followed by paired yellow spots and transverse, pale patches; venter pale, without patterns.

Palp (Fig. 37 A – D): femur length / width ratio ca 1.79; patella ~ 1.8 × longer than wide; tibia ~ 1 / 3 patellar length, with slender, S-shaped retrolateral apophysis (RTA) and sub-triangular dorsal apophysis (DTA); cymbium ~ 1.6 × longer than wide, with tapered, spine-shaped baso-dorsal apophysis (DCA); tegulum swollen; median apophysis (MA) irregular, broadened and swollen distally; embolus (E) flat and forming round disc at base, and then acutely narrowed to whip-shaped portion.

Female (Fig. 38 A – D, G). Total length 4.77. Carapace 2.03 long, 1.47 wide. Abdomen 2.67 long, 1.41 wide. Eye sizes and inter-distances: AME 0.50, ALE 0.27, PLE 0.24, AERW 1.50, PERW 1.48, EFL 1.20. Legs: I 4.38 (1.33, 1.05, 1.20, 0.50, 0.30), II 3.14 (0.98, 0.48, 0.75, 0.63, 0.30), III 3.44 (1.00, 0.48, 0.78, 0.85, 0.33), IV 4.43 (1.25, 0.50, 1.20, 1.13, 0.35). Habitus (Fig. 38 G) similar to that of male except slightly darker.

Epigyne (Fig. 38 A – D) almost as long as wide, with transverse, lamellar, posterior fold (F); atrium (At) large, occupies anterior 3 / 5, separated by Y-shaped septum (Se), with pair of auricle-shaped lateral ridges (AR); copulatory openings (CO) beneath baso-lateral portions of atrial ridges; copulatory ducts (CD) thin, anterior half curved into C-shape, posterior half posteriorly descending with short, transversely extending accessory glands (AG); spermathecae touched, with spherical inner portions.

Distribution.

Known only from the type locality in Guangxi, China (Fig. 47).