Clubiona yanzhii Zhang & Yu, 2020 彦之ú巢ss Figs 3–4 Clubiona yanzhii Zhang & Yu, 2020: 353, fig. 5a–g (♀). Diagnosis The male C. yanzhii resembles that of C. subapplanata Wang, Chen & Zhang, 2018 in the shape of the palp (compare Fig. 3C–E with Wang et al. 2018: figs 14a–b, 15c–d) but can be distinguished by the absence of the LTA, the membranous VTA, the transparent, membranous conductor, the small EB, and the TA with a straight and pointed distal end (Fig. 3C–E) (vs presence of the LTA, a distinctly sclerotized VTA, absence of the conductor, a distinctly swollen EB, and a twisted distal end of the TA in C. subapplanata, as in Wang et al. 2018: figs 14a–b, 15c–d). For the diagnosis of the female, see Zhang & Yu (2020). Material examined CHINA • 1 ♂; Guangxi Zhuang Autonomous Region, Fangchenggang City, Shiwandashan National Nature Reserve, Pinglong Station; 21°50′ N, 107°53′ E; 749 m a.s.l.; 28 Apr. 2021; A. He, J. Liu, Y. Liang, R. Liao, Q. Li, H. Zhang, S. Zhu, Z. Zhao and Y. Liu leg; HNU1372 • 2 ♀♀; same data as for preceding; 21°50′ N, 107°53′ E; 619 m a.s.l.; 28 Apr. 2021; A. He, J. Liu, Y. Liang, R. Liao, Q. Li, H. Zhang, S. Zhu, Z. Zhao and Y. Liu leg; HNU1391 to HNU1392 • 1 ♀; same data as for preceding, Banba Village, Dongkou Station; 21°43′ N, 107°32′ E; 820 m a.s.l.; 27 Apr. 2021; A. He, J. Liu, Y. Liang, R. Liao, Q. Li, H. Zhang, S. Zhu, Z. Zhao and Y. Liu leg.; HNU1393. Description Male (HNU1372) Total length 5.08; carapace 2.28 long, 1.60 wide; abdomen 2.66 long, 1.51 wide. Carapace elongate-oval, brown, fovea red; cephalic region distinctly narrowed; cervical groove indistinct, radial grooves distinct; anterior part densely covered with fine white hairs (Fig. 3A). Eyes: AER distinctly recurved, PER wider than AER and nearly straight in dorsal view. Eye sizes and interdistances: AME 0.10, ALE 0.12, PME 0.12, PLE 0.12, AME–AME 0.09, AME–ALE 0.05, PME–PME 0.21, PME–PLE 0.13, MOQL 0.36, MOQA 0.30, MOQP 0.44. Chelicerae brown, darker than carapace, with five promarginal and four retromarginal teeth. Sternum yellow, oval, with long black hairs along the margins, 1.28 long, 0.77 wide. Labium and endites light brown, longer than wide. Legs colored as sternum, without markings (Fig. 3B). Leg measurements: I 5.58 (1.56, 0.77, 1.47, 1.15, 0.63), II 6.23 (1.82, 0.75, 1.65, 1.36, 0.65), III 5.30 (1.54, 0.75, 1.13, 1.44, 0.44), IV 7.14 (2.03, 0.83, 1.79, 2.14, 0.62). Leg formula 4213. Abdomen elongate-oval, dark brown, with blackish-brown markings; anterior part flat, with thick tuft of setae (Fig. 3A). Ventral side colored as dorsal side, with blackish-brown markings; book lung area pale yellow. Spinnerets short, pale yellow (Fig. 3B). PALP (Fig. 3C–E). Femur and patella unmodified. Tibia short, ca 2 / 5 as long as cymbium, with two apophyses: RTA bluntly triangular, about 120°, moderately sclerotized; VTA bluntly rounded, partly membranous, longer than wide. Bulb distinctly bulging and prolapsed, sperm duct indistinct in ventral view. EB represented by enlarged tubercle, ca 2 / 7 as long as embolus at 12 o’clock position on tegulum; free part of embolus filiform, ca 5 / 7 of its length, with tip curved ventrally. Conductor nearly as long as embolus, extending alongside embolus, membranous, lamellar. TA beak-shaped, originating from retrolateral side of tegulum, with broad base and sharp apex pointing prolaterally. Female For diagnosis and description, see Zhang & Yu (2020). Habitus as in Fig. 4A–B, epigyne as in Fig. 4C–D. Distribution China (Guangxi Zhuang Autonomous Region, Hunan). Remarks The structure labeled as TA in Fig. 3D has been identified as the conductor in the similar species C. subapplanata (Wang et al. 2018). However, we consider this structure to be the tegular apophysis (TA) instead, since it is a sclerotized projection arising from the distal margin of the tegulum. In our specimen, a membranous conductor accompanying the embolus is clearly visible, further supporting our interpretation.

Published as part of Wu, Yecheng, Wen, Yingli, Yin, Haiqiang & Xu, Xiang, 2026, A survey of clubionid spiders (Araneae: Clubionidae) from Shiwandashan National Nature Reserve, Guangxi, China, pp. 133-161 in European Journal of Taxonomy 1034 on pages 141-144, DOI: 10.5852/ejt.2026.1034.3151, http://zenodo.org/record/18327857