Yaginumaella xiaoqingi C. Wang, Mi & Li sp. nov.

Figs 15, 16

Type material.

Holotype • ♂ (IZCAS -Ar 45889), China: Guizhou: Weining Yi, Hui and Miao Autonomous County, Guanfenghai Township, Shazipo Village (26°55.68'N, 103°58.29'E, ca 2,250 m), 1. vi. 2024, X. Q. Zhang, Y. Wang, and Q. Z. Meng leg. Paratypes • 2 ♀ (IZCAS -Ar 45890 –45891), same data as for holotype; • 1 ♂ 1 ♀ (IZCAS -Ar 45892 –45893), Shuijinbaobao Village (26°53.52'N, 104°5.72'E, ca 2,530 m), same data and collectors as holotype .

Diagnosis.

Yaginumaella xiaoqingi sp. nov. closely resembles Y. erlang Wang, Mi & Li, 2024 in having very similar copulatory organs, but can be distinguished by the following: 1) the retrolateral tibial apophysis has blunt tip in retrolateral view (Fig. 15 B) vs pointed in Y. erlang (Wang et al. 2024 a: fig. 20 C); 2) the posterior tegular lobe extends postero-retrolaterally (Fig. 15 C) vs posteriorly in Y. erlang (Wang et al. 2024 a: fig. 20 B); 3) the atrium is inverted trapeziform (Fig. 16 A) vs trapeziform in Y. erlang (Wang et al. 2024 a: fig. 21 A).

Description.

Male (Figs 15 A – D, 16 C, D, F, G). Total length 4.15. Cephalothorax 2.05 long, 1.49 wide. Abdomen 2.23 long, 1.51 wide. Eye sizes and inter distances: AME 0.38, ALE 0.23, PLE 0.21, AERW 1.24, PERW 1.21, EFL 0.77. Legs: I 3.96 (1.18, 0.70, 0.93, 0.70, 0.45), II 3.49 (1.05, 0.65, 0.78, 0.58, 0.43), III 3.80 (1.20, 0.60, 0.75, 0.80, 0.45), IV 4.18 (1.25, 0.58, 0.90, 0.95, 0.50). Carapace yellow-brown to brown, covered with dense pale yellow and sparse dark setae, with longitudinal, central pale yellow stripe extending from posterior portion of eye field to posterior end; fovea linear. Chelicerae yellow, bearing long dark setae on anterior surface, with type dentition. Endites pale yellow, with pale disto-inner portions and dense disto-inner marginal setae. Labium almost as color as endites. Sternum pale yellow, almost shield-shaped. Legs pale to yellow-brown, spiny. Dorsum of abdomen covered with lateral dark and pale setae, with central, irregular pale yellow patch and two pairs of muscle depressions; venter mainly pale, with dark dots.

Palp (Fig. 15 A – D): tibia slightly wider than long in retrolateral view; retrolateral tibial apophysis strongly sclerotized, tapered, ca 1.5 × longer than tibia, slightly curved medially and with blunt tip; cymbium somewhat longer than wide; tegulum almost oval, swollen medio-posteriorly, with posterior lobe extending retrolatero-posteriorly; embolus originates from ca 8 o′clock position, tapered, curved ~ 1 / 4 circle and with rather pointed tip.

Female (Fig. 16 A, B, E). Total length 4.36. Cephalothorax 2.11 long, 1.67 wide. Abdomen 2.36 long, 1.61 wide. Eye sizes and inter distances: AME 0.40, ALE 0.26, PLE 0.23, AERW 1.36, PERW 1.33, EFL 0.89. Legs: I 3.75 (1.15, 0.70, 0.85, 0.60, 0.45), II 3.46 (1.10, 0.65, 0.78, 0.50, 0.43), III 3.94 (1.20, 0.63, 0.80, 0.83, 0.48), IV 4.57 (1.38, 0.63, 1.00, 1.05, 0.51). Habitus (Fig. 16 E) similar to that of male except darker.

Epigyne (Fig. 16 A, B): almost as long as wide, with pair of sub-triangular anterolateral hoods lateral to anterior portion of atrium; atrium anteriorly located, inverted trapeziform; copulatory openings slit-shaped; copulatory ducts curved into C-shapes at origin and followed by complicated coils; spermathecae without distinct border; fertilization ducts transversely extending.

Distribution.

Known only from the type locality in Guizhou, China (Fig. 2).

Etymology.

The specific name refers to Dr Xiaoqing Zhang, one of the collectors; noun (name) in genitive case.