Shaanxinus zhongzhai Irfan, Rehman, Wang & Zhang, 2026, sp. nov.

Shaanxinus zhongzhai sp. nov. Figs 9 A – D, 10 N, 10 O, 11 Chinese name. 中寨陕蛛. Type material. Holotype: • 1 ♂, China: Guizhou Province, Bijie City, Nayong County, Yongxi Town, Zhongzhai Village, 26°41.196'N, 105°22.802'E, alt. 1691 m, 2012-7-2, Wang Dong, Jiang Xuankong leg. (SWUC -T-LIN-44-01). Etymology. The specific epithet is derived from the type locality. Diagnosis. Male of Shaanxinus zhongzhai sp. nov. can be distinguished from all other congeners by the distal arm of the paracymbium tip with several small teeth; protegulum reduced; tip of lateral arm of radix forming a perpendicular angle (Fig. 9 B). Description. Male (holotype, Fig. 10 N, O): total length: 2.26. Carapace 1.04 long, 0.83 wide, yellow, cephalic lobe 0.48 high with many microsetae; sulci present below anterior eye row; fovea, cervical and radial grooves distinct. Clypeus 0.24 high. Chelicerae with 4 promarginal and 4 retromarginal teeth. AER recurved, PER straight, wider than AER. Eye sizes and interdistances: AME 0.05, ALE 0.07, PME 0.06, PLE 0.07, AME – AME 0.06, PME – PME 0.08, AME – PME 0.11, AME – ALE 0.05, PME – PLE 0.05, ALE – ALE 0.31, PLE – PLE 0.34, ALE – PLE 0.01. Length of legs: I 3.75 (1.05, 1.25, 0.91, 0.54), II 3.94 (1.12, 1.28, 0.97, 0.58), III 2.76 (0.84, 0.83, 0.69, 0.40), IV 3.19 (0.91, 0.97, 0.84, 0.47). Leg II longer than I. TmI 0.21. Tibial spine formula: 2-2 - 2 - 2. Abdomen 1.34 long, 0.83 wide, oval, grey, with black pattern followed by 5 transverse chevrons, ventral side grey. Pedipalp (Fig. 9 A – D). Patella slightly shorter than tibia, ventrally grooved. Tibia with 2 retrolateral and 1 dorsal trichobothria, posterior margin with long, thick spines. Paracymbium C-shaped, distal arm tip with depression, margin with several small teeth in retrolateral view. Tegulum retrolaterally extending, with small reduced membranous protegulum. Distal suprategular apophysis disc-shaped, with bifurcated end. Radix with rod-like anterior radical process, with pointed end; lateral extension of radix slightly curved, apical end with large projection in retrolateral view; tailpiece small, triangular, with pointed end; median membrane present; embolus arc-shaped, terminal part ends in apex of lateral extension of radix. Female. Unknown. Distribution. Known only from the type locality (Fig. 11).