Poeciloneta jidingensis Xu, Irfan & Zhang, 2026, sp. nov.

Poeciloneta jidingensis sp. nov. Figs 3, 4, 5 B, 6 E – H, 7 Name in Chinese. 吉定杂色皿蛛. Type material. Holotype • ♂; China, Xizang Autonomous Region, Sajia County, Jiding Town (grassland along farmland), 29°12.571'N, 88°22.267'E, 3910 m a. s. l., 13 Jul. 2018, Luyu Wang, Zhisun Wu, and Yannan Mu leg. (SWUC -T-LIN-39-01). Paratypes: • 1 ♂ 19 ♀, same distribution data as holotype (SWUC -T-LIN-39-02 ~ 21). Etymology. This epithet derives from the type locality. Diagnosis. The male of Poeciloneta jidingensis sp. nov. resembles P. ancora, P. duinanensis sp. nov., and P. xizangensis in having the distal arm of paracymbium (PC) similar and the lamella characteristica (LC) with several branches (Figs 1 A – D, 3 A – D; Zhai and Zhu 2008: figs 5–7, 12–14), but it can be distinguished by the LC 2 tip having seven teeth (vs with three teeth in P. duinanensis sp. nov. or bifurcated in both P. ancora and P. xizangensis; compare Fig. 3 D, Fig. 1 C, with Fig. 5 A, B, Zhai and Zhu 2008: figs 6, 13); LC 2 lateral projection tooth present (vs absent in P. jidingensis sp. nov. (Figs 3 A – D, 1 A – D, 5 A, 5 B)); embolus proper (EP) tip not bifurcated (vs bifurcated; compare Fig. 3 C, Fig. 1 C and Fig. 5 A, B, figs 6, 13). The female of P. jidingensis sp. nov. resembles P. duinanensis sp. nov. and P. xizangensis in having a similar proscape (PS) (Figs 4 A – D, 2 A – D; Zhai and Zhu 2008, figs 2–4), but it can be distinguished by the trapezoidal posterior median plate (PMP) (vs strongly depressed at center and lateral margin round in P. duinanensis sp. nov. or slightly depressed at center and lateral margin angular in P. xizangensis; compare Fig. 4 D with Fig. 2 D, Zhai and Zhu 2008: fig. 3). Description. Male (holotype, Fig. 6 E, F): total length 2.43; carapace 1.28 long, 0.98 wide, yellowish brown; cephalic region slightly elevated; fovea, cervical, and radial grooves distinct. Clypeus 0.13 high. Chelicerae with two promarginal and three retromarginal teeth. Sternum dark brown, as long as wide, with microsetae. Eyes: AER recurved, PER straight, slightly wider than AER. Eye sizes and interdistances: AME 0.06, ALE 0.10, PME 0.09, PLE 0.09, AME – AME 0.02, PME – PME 0.05, AME – ALE 0.05, PME – PLE 0.05, AME – PME 0.09, ALE – ALE 0.39, PLE – PLE 0.41, ALE – PLE contiguous. Length of legs: I 5.09 (1.36, 0.34, 1.35, 1.21, 0.83), II 4.40 (1.27, 0.31, 1.11, 0.99, 0.72), III 3.65 (1.02, 0.27, 0.86, 0.91, 0.59), IV 4.74 (1.30, 0.29, 1.16, 1.26, 0.73). TmI 0.24. Tibial spine formula: 2-2 - 2 - 2. Opisthosoma 1.40 long, 0.84 wide, oval; dorsal side with greenish pattern extending laterally; lateral side with white patches; ventral side blackish brown. Pedipalp (Fig. 3 A – D, 5 B). Patella two-thirds of length of tibia, dorsally with a long, thick spine. Tibia conical, with two retrolateral and one dorsal trichobothria. Proximal cymbial apophysis (PCA) triangular, with blunt end. Paracymbium (PC) sclerotized, U-shaped; distal arm tip broadened, with blunt end. Pit-hook (PH) relatively strong, sclerotized; distal end grooved. Lamella characteristica (LC) with two branches: LC 1 extending forward, distal branch with two long branches and two median teeth apically; LC 2 tip sclerotized, apically with seven teeth and lateral branch short, with a tooth and pointed end. Terminal apophysis (TA) distal end wavy, slightly curved. Embolus (E) long; embolus proper (EP) slightly curved, with pointed tip. Thumb (TH) inconspicuous. Female (paratype, SWUC -T-LIN-39-02, Fig. 6 G, H): total length 2.72; carapace 1.25 long, 0.89 wide, cephalic region slightly elevated, yellowish brown, fovea, cervical and radial grooves distinct. Clypeus 0.22 high. Chelicerae with three promarginal and three retromarginal teeth. Sternum longer than wide, blackish brown, with microsetae. Eyes: AER recurved, PER straight, slightly wider than AER. Eye sizes and interdistances: AME 0.07, ALE 0.10, PME 0.08, PLE 0.09, AME – AME 0.02, PME – PME 0.05, AME – ALE, 0.04, PME – PLE 0.05, AME – PME 0.08, ALE – ALE 0.37, PLE – PLE 0.41, ALE – PLE contiguous. Length of legs: I 4.91 (1.32, 0.36, 1.22, 1.18, 0.83), II 4.52 (1.23, 0.35, 1.12, 1.10, 0.72), III 3.50 (0.94, 0.27, 0.83, 0.90, 0.56), IV 4.58 (1.33, 0.29, 1.11, 1.15, 0.70). TmI 0.21. Tibial spine formula: 2-2 - 2 - 2. Opisthosoma 2.17 long, 1.33 wide, oval; all other characteristics same as in male. Epigyne (Fig. 4 A – D). Proscapus (PS) 1.5 wider than long; stretcher (St) longer than wide in dorsal view, with rounded end; lateral lobe (LL) globular. Posterior median plate (PMP) trapezoidal. Copulatory opening (CO) present in lateral lobes at the middle of proscapus (PS) anteriorly. Spermathecae (S) tubular, strongly curved. Distribution. Known only from the type locality (Fig. 7).