Review of Chalcovietnamicus Marusik, 1991, with description of four new species (Araneae, Salticidae, Euophryini) Author Yu, Kun 0000-0002-5517-4484 Key Laboratory of Zoological Systematics and Application of Hebei Province, Institute of Life Science and Green Development, College of Life Sciences, Hebei University, Baoding, Hebei 071002, P. R. China & 13468690210 @ 163. com; https: // orcid. org / 0000 - 0002 - 5517 - 4484 Author Hoang, Quang Duy 0000-0003-1672-7960 Faculty of Natural Sciences and Technology, Tay Nguyen University, 567 Le Duan, Buon Ma Thuot, Dak Lak 630000, Vietnam Departments of Zoology and Botany and Beaty Biodiversity Museum, University of British Columbia, 6270 University Boulevard, Vancouver, British Columbia, V 6 T 1 Z 4, Canada & hqduy @ ttn. edu. vn; https: // orcid. org / 0000 - 0003 - 1672 - 7960 hqduy@ttn.edu.vn Author Maddison, Wayne P. 0000-0003-4953-4575 wayne. maddison @ ubc. ca; https: // orcid. org / 0000 - 0003 - 4953 - 4575 wayne.maddison@ubc.ca Author Zhang, Junxia 0000-0003-2179-3954 Key Laboratory of Zoological Systematics and Application of Hebei Province, Institute of Life Science and Green Development, College of Life Sciences, Hebei University, Baoding, Hebei 071002, P. R. China & jxzhang 1976 @ 163. com; https: // orcid. org / 0000 - 0003 - 2179 - 3954 text Zootaxa 2023 2023-08-24 5336 4 451 480 http://dx.doi.org/10.11646/zootaxa.5336.4.1 journal article 10.11646/zootaxa.5336.4.1 1175-5326 8282322 9437A968-62B7-467C-97B6-BD6DD0164EF7 Chalcovietnamicus weihangi Yu & Zhang , sp. nov. (NJüffiḋff) Figs 2–3 , 88–104 , 144 Type material. Holotype : ♁ (MHBU-ARA-00023662), CHINA : Guangxi Prov. , Guilin City , Xing’an County ( ẊṘƌ ), Maoershan National Natural Reserve ( OiẌƜDZḞƦñãffiŻ ), Lijiangyuan canyon ( NJflAEXựê ), 25.0142°N , 110.0083°E , 476 m elev., 3 May 2021 , leg. Y. Mu & W. Wang , HBUARA#2021-37 . Paratype : 1♀ (MHBU-ARA-00023663), same data as holotype . Other material examined. CHINA : 1♁ 11♀ (MHBU-ARA-00023664~00023667), Guangxi Province , Hezhou City , Fuchuan Yao Autonomous County ( âfflẈḦƦàƌ ), Chengbei Town ( Ẅẍā ), Xinzhai Village ( ĔẠn' ), 24.0125°N , 111.0036°E , 312 m elev., 8 May 2021 , leg. Y. Mu & W. Wang , HBUARA#2021-44 ; 1♀ (MHBU-ARA-00023668), Same locality, 7 May 2021 , leg. Y. Mu & W. Wang , HBUARA#2021-42 ; 2♀ (MHBU- ARA-00023669~00023670), Guangxi Province , Hezhou City , Pinggui District ( ṮIJŻ ), Guposhan Scenic Area ( ỄḄƜKṞŻ ), Yilezhai ( ‒Ģ⁂ ), 24.0103°N , 111.0086°E , 830 m elev., 11 May 2021 , leg. Y. Mu & W. Wang , HBUARA#2021-49 . Etymology. The specific epithet is in honor of Mr. Weihang Wang (MHBU), who contributed greatly to this work by collecting specimens and taking photographs of living spiders. Diagnosis. It can be distinguished from all other congeners by the embolus that is bent near 90° in ventral view ( Figs 97 , 101 ), and the relatively low atria along with an obviously raised median septum ( Fig. 99 ). Description. Male. Habitus as shown in Figs 92–93 . Measurements of holotype (MHBU-ARA-00023662): carapace length 1.82; abdomen length 1.55; measurements of eyes: AME 0.37, ALE 0.22, PME 0.06, PLE 0.19; measurements of legs: I 3.35 (0.99, 0.69, 0.72, 0.57, 0.38), II 2.74 (0.92, 0.48, 0.62, 0.38, 0.34), III 2.87 (0.97, 0.44, 0.54, 0.56, 0.36), IV 2.92 (0.89, 0.45, 0.62, 0.62, 0.34); leg formula 1423. Endite with anterior lateral subtriangular extension. Color ( Figs 88–89 ): Body dark, covered with dark-khaki setae except for face, palp and tibia I, these parts slightly darker than other body parts; abdominal pattern indistinct. Palp as in Figs 97–98 , 101–102 : Cymbium slightly longer than palpal bulb in length, cymbial process (CyP) present, slightly visible in ventral view of palp; tegular lobe stout, sticking out of tegulum, not curved; embolus curved near 90° in ventral view, sticking out of large and oval embolic disc, embolic disc hidden behind bulb; retrolateral tibial apophysis (RTA) wide in retrolateral view, platelike, domed in distal part. Female. Habitus as shown in Fig. 94 . Measurements of paratype (MHBU-ARA-00023665): carapace length 2.22; abdomen length 2.37; measurements of eyes: AME 0.41, ALE 0.25, PME 0.07, PLE 0.24; measurements of legs: I 3.44 (1.09, 0.65, 0.76, 0.53, 0.41), II 3.11 (1.03, 0.58, 0.61, 0.52, 0.37), III 3.26 (1.15, 0.59, 0.55, 0.59, 0.38), IV 3.63 (1.24, 0.58, 0.74, 0.72, 0.35); leg formula 4132. Body form like male, but without anterior lateral subtriangular extension and present central setal tuft on sternum ( Fig. 96 ); dorsal abdominal pattern clearer than male, with discontinuous and hollow longitudinal light mark on axis, and three pairs of transverse light setal bands on each side of posterior part ( Fig. 30 ). FIGURES 88–91. Living Chalcovietnamicus weihangi Yu & Zhang sp. nov. , male (88 – 89) and female (90 – 91). Figures are copyright © Weihang Wang. Vulva as in Figs 99–100 , 103–104 : Copulatory ducts curved outward; spermathecae subspherical, with accessory glands (AG) attached at their base. Variation. In the male from Hezhou , Guangxi (MHBU-ARA-00023664), the tegular lobe (TL) is relatively short, palpal patella is obviously elongated, and the retrolateral patellar crack (PC) is present, whereas in the holotype male, the tegular lobe (TL) is long, palpal patella is short, and the patellar crack is fused ( Fig. 98 ) . Natural history. All specimens were collected in cracks of handrails. One female was observed preying on ant (possibly Crematogaster sp. ; Fig. 3 ). Distribution. China ( Guangxi ).