First record of the spider family Trechaleidae Simon, 1890 (Araneae) from China Author Wang, Lu-Yu 0000-0002-5250-3473 Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China Author Mu, Yan-Nan 0000-0002-2504-673X The Key Laboratory of Zoological Systematics and Application, Institute of Life Science and Green Development, College of Life Sciences, Hebei University, Baoding, Hebei 071002, China Author Zhang, Feng 0000-0002-3347-1031 The Key Laboratory of Zoological Systematics and Application, Institute of Life Science and Green Development, College of Life Sciences, Hebei University, Baoding, Hebei 071002, China Author Marusik, Yuri M. 0000-0002-4499-5148 Institute for Biological Problems of the North RAS, Portovaya Str. 18, Magadan 685000, Russia & Department of Zoology & Entomology, University of the Free State, Bloemfontein 9300, South Africa & Altai State University, Lenina Pr., 61, Barnaul, RF- 656049, Russia Author Zhang, Zhi-Sheng 0000-0002-9304-1789 Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China text ZooKeys 2024 2024-05-30 1203 189 195 journal article 10.3897/zookeys.1203.124808 7BA83309-9861-4A43-A1BD-EB37A6563EF9 Shinobius cona sp. nov. Figs 1 , 2 , 3 , 5 错那侵蛛 Type material. Holotype ♂ ( SWUC - T-TR- 01-01 ): China , Xizang , Cona Co. , Mama Township , Lebugou ; 27 ° 50 ′ 59 ″ N , 91 ° 46 ′ 39 ″ E , elev. 2280 m ; 4. viii. 2020 ; L. Y. Wang , T. Yuan and Y. M. Hou leg. ; Paratype : 1 ♀ ( SWUC - T-TR- 01-02 ), same data as holotype . Etymology. The epithet refers to the type locality. Diagnosis. The new species is similar to S. orientalis (Yaginuma, 1967) ( Sierwald 1993 : figs 20–22), but differs by having no strong spines on the male palpal tibia and cymbium (vs. present), a median apophysis with one branch (vs. two); a roundly bent and not meandering spermophor (vs. meandering) as well by having the septum of the epigyne wider posteriorly (vs. anteriorly), and slit-like copulatory openings (CO) (vs. round, cf. Fig. 2 C and Fig. 4 B ). Description. Male holotype (Fig. 1 A ) total length 5.75. Carapace 2.85 long, 2.37 wide, cephalic part 1.8 times thinner than thoracic; opisthosoma 2.83 long, 2.59 wide. Carapace yellow brown, with distinct pattern: cephalic part behind posterior eye row light brown, anterior part of thoracic part with 2 pairs of light, and submarinal spots, larger anterior and smaller posterior; medially with thin light stripe and 2 thin, and light marginal stripes against coxa III and IV. Cervical groove indistinct, radial furrows distinct. Eye sizes and interdistances: AME 0.12, ALE 0.12, PME 0.18, PLE 0.21; AME – AME 0.13, AME – ALE 0.08, PME – PME 0.14, PME – PLE 0.23, Clypeus height 0.25. Legs yellow brown, with black pigmentation. Tibia I with four pairs of ventral spines; metatarsus I with 3 pairs of ventral spines. Tibia II with 3 pairs of ventral spines; metatarsus II with 3 pairs of ventral spines. Leg measurements: I 10.31 (2.90, 3.52, 2.50, 1.39); II 10.71 (3.03, 3.68, 2.67, 1.33); III 9.14 (2.41, 3.39, 2.21, 1.13); IV 10.84 (2.87, 3.64, 2.93, 1.40). Opisthosoma oval. Dorsum yellow brown, with black brown markings. Venter yellowish-brown. Figure 1. Shinobius cona sp. nov. male holotype ( A ), female paratype ( B – I ) A male habitus, dorsal view B female habitus, dorsal view C tibia I, ventral view D eyes, dorsal view E eyes and chelicerae, front view F chelicerae, ventral view G chelicerae, endites and labium, ventral view H sternum, ventral view I spinneret, ventral view. Palp (Figs 2 A, B , 3 A – E ). Retrolateral tibial edge hood-shaped. Subtegulum large, located on baso-prolateral side of bulb. Tegulum with slanting and meandering thin spermophor. Median apophysis short, medially wide, ventrally with coracoid tip, dorsally with a groove. Conductor digitiform (longer than wide), curving and membranous. Embolus arc-shaped, bent at about right angle, with oval-shaped base (Eb), tip ends in median apophysis groove dorsally. Figure 2. Shinobius cona sp. nov. A, B holotype male C, D paratype female A left male palp, ventral view B same, retrolateral view C epigyne, ventral view D vulva, dorsal view. Abbreviations: Ar = anterior receptacle; CO = copulatory opening; Co = conductor; Em = embolus; FD = fertilization duct; MA = median apophysis; Pr = posterior receptacle; H = hood; Se = septum; St = subtegulum; Te = tegulum. Figure 3. Shinobius cona sp. nov. male holotype ( A – E ), female paratype ( F, G ) A left male palp, ventral view B same, retrolateral view C right male palp, bulb, ventral view (overturn) D same, retrolateral view (overturn) E right male palp, median apophysis and embolus, dorsal view (overturn) F epigyne, ventral view G vulva, dorsal view. Figure 4. Shinobius orientalis (Yaginuma, 1967) A female habitus, dorsal view B epigyne, ventral view C vulva, dorsal view. (courtesy of Francesco Ballarin). Female paratype (Fig. 1 B – I ) total length 5.78. Carapace 2.98 long, 2.55 wide, cephalic part 1.6 times thinner than maximal width of carapace; opisthosoma 3.03 long, 2.41 wide. Eye sizes and interdistances: AME 0.16, ALE 0.15, PME 0.24, PLE 0.23; AME – AME 0.12, AME – ALE 0.09, PME – PME 0.14, PME – PLE 0.27. Carapace pattern as in male. Clypeus height 0.15. Leg measurements: I 9.55 (2.71, 3.37, 2.29, 1.18); II 9.70 (2.80, 3.34, 2.39, 1.17); III 8.59 (2.50, 2.88, 2.19, 1.02); IV 10.54 (2.92, 3.48, 2.84, 1.30). Sternum yellowish with 3 pairs of dark round submarginal spots (Fig. 3 H ) Epigyne (Figs 2 C, D , 3 F, G ). Epigynal plate 1.2 times wider than long; fovea (atrium) almost totally covered with septum, 1.2 times longer than wide, anterior part of plate 2 times thinner than posterior; copulatory openings (CO) slit-like; Endogyne with 2 pairs of receptacles, posterior receptacles (Pr) crooked; anterior receptacles (Ar) cylindrical, with the oval head covered with sparse glandular pores; Fertilization ducts arc-shaped. Natural history. Forms a funnel-shaped web on the moss. Female was found with egg-cocoons attached to spinnerets. Distribution. Known only from the type locality, Xizang , China (Fig. 5 ). Figure 5. Distribution records of Shinobius species : S. cona sp. nov. (circle) and S. orientalis (square, type locality pointed, only prefecture records are shown).