Eriovixia zhengi, Mi & Li, 2021

Mi, Xiaoqi & Li, Shuqiang, 2021, On nine species of the spider genus Eriovixia (Araneae, Araneidae) from Xishuangbanna, China, ZooKeys 1034, pp. 199-236 : 199

Eriovixia zhengi sp. nov. Figs 15 , 16 , 18D , 19H , 20H

Type material.

Holotype ♂ (IZCAS-Ar41749), China: Yunnan, Xishuangbanna, Mengla County, Menglun Township, Menglun Nature Reserve, G213 roadside (21°54.12'N, 101°16.93'E, 590 m alt.), 24.XI.2009, G. Tang et al. leg. Paratypes: 2♀ (IZCAS-Ar41750-41751), same data as holotype; 1♀ (IZCAS-Ar41752), valley tropical seasonal rainforest (21°54.85'N, 101°16.55'E, 569 m alt.), 1.XII.2009, G. Tang et al. leg.; 1♂1♀ (IZCAS-Ar41753-41754), secondary tropical seasonal moist forest (21°54.72'N, 101°16.94'E, 645 m alt.), 27.VII.2007, G. Zheng leg.; 2♂ (IZCAS-Ar41755-41756), same locality (21°54.61'N, 101°17.01'E, 633 m alt.), 28.VII.2007 a.m. G. Zheng leg.; 1♀ (IZCAS-Ar41757), Magnolia baillonii plantation (about 20 yr) (21°54.20'N, 101°16.92'E, 608 m alt.), 18.VIII.2007 a.m. G. Zheng leg.; 1♂ (IZCAS-Ar41758), rubber plantation (21°54.70'N, 101°16.39'E, 593 m alt.), 12.XI.2009, G. Tang et al.; Other material examined: 1♂ (IZCAS-Ar41759), Lvshilin Forest Park, limestone seasonal rainforest (21°54.71'N, 101°16.94'E, 652 m alt.), 15.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41760), same locality (21°54.71'N, 101°16.94'E, 660 m alt.), 16.XI.2009, G. Tang et al. 2♂ (IZCAS-Ar41761), same locality (21°54.60'N, 101°17.08'E, 640 m alt.), 17.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41762), same locality (21°54.61'N, 101°17.09'E, 643 m alt.), 17.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41763), same locality (21°54.56'N, 101°16.86'E, 610 m alt.), 29.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41764), same locality (21°54.67'N, 101°16.98'E, 630 m alt.), 22.VII.2018 night, X. Mi et al. leg; 1♂ (IZCAS-Ar41765), same locality (21°54.67'N, 101°16.98'E, 630.1 m alt.), 30.VII.2018, X. Mi et al. leg; 1♀ (IZCAS-Ar41766), same locality (21°54.58'N, 101°16.50'E, 566.2 m alt.), 6.VIII.2018, C. Wang et al. leg; 2♂2♀ (IZCAS-Ar41767), same locality (21°54.65'N, 101°17.02'E, 686.3 m alt.), 9.VIII.2018, C. Wang et al. leg; 1♂ (IZCAS-Ar41768), same locality (21°54.68'N, 101°16.95'E, 637.1 m alt.), 10.VIII.2018 night, C. Wang et al. leg; 1♀ (IZCAS-Ar41769), G213 roadside (21°54.09'N, 101°17.02'E, 570 m alt.), 28.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41770), G213 roadside (21°54.09'N, 101°17.02'E, 579 m alt.), 28.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41771), G213 roadside (21°55.18'N, 101°16.37'E, 581 m alt.), 30.XI.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41772), same locality (21°53.99'N, 101°16.95'E, 596 m alt.), 2.XII.2009, G. Tang et al. leg.; 2♂1♀ (IZCAS-Ar41773), same locality (21°54.02'N, 101°16.93'E, 606 m alt.), 2.VIII.2018, Z. Bai et al. leg; 3♀ (IZCAS-Ar41774), same locality (21°53.80'N, 101°17.08'E, 604 m alt.), 30.VII.2018, Z. Bai et al. leg; 1♀ (IZCAS-Ar41775), Xishuangbanna Tropical Botanical Garden, eastern part (21°54.07'N, 101°16.36'E, 544 m alt.), 22.VII.2018, X. Mi et al. leg; 2♂ (IZCAS-Ar41776), same locality (21°54.02'N, 101°16.90'E, 561 m alt.), 27.IV.2019, Y. Tong et al.; 1♂ (IZCAS-Ar41777), same locality, (21°55.065'N, 101°16.362'E, 579 m alt.), 10.VIII.2018, C. Wang et al. leg. 2♂1♀ (IZCAS-Ar41778), Mafengzhai Village (21°53.59'N, 101°17.33'E, 559 m alt.), 5.VIII.2018, Z. Bai et al. leg; 1♂ (IZCAS-Ar41779), same locality (21°53.45'N, 101°17.40'E, 543 m alt.), 29.IV.2019, Y. Tong et al. leg.; 1♂ (IZCAS-Ar41780), tropical rainforest (21°55.18'N, 101°16.06'E, 550 m alt.), 8.VIII.2018, C. Wang et al. leg.

Etymology.

The specific name is a patronym of Dr. Guo Zheng (College of Life Sciences, Shenyang Normal University), one of the collectors of the type specimens; noun (name) in genitive case.

Diagnosis.

Eriovixia zhengi sp. nov. resembles E. pseudocentrodes , E. huwena and E. sticta in appearance. It differs from E. pseudocentrodes by: 1) embolus fused with terminal apophysis at base in prolateral view vs. not fused ( Mi et al. 2010: fig. 14); 2) conductor not curled to a pointed tip vs. curled to a pointed tip ( Mi et al. 2010: Figs 14 - 15 ); 3) epigyne widest at base vs. widest medially ( Mi et al. 2010: figs 11 and 13); 4) median plate keeled vs. not keeled ( Mi et al. 2010: fig. 12); and 5) posteriorly, abdomen square vs. pointed ( Mi et al. 2010: figs 9-10). It differs from E. huwena in: 1) the conductor not curled to a pointed tip vs. curled to a pointed tip ( Han and Zhu 2010: figs 8A and B); 2) having a spur at the base of the conductor vs. absent ( Han and Zhu 2010: figs 8A and B); and 3) the spermathecae ovoid and touching each other vs. kidney-shaped and separated (Mi and Wang 2016: figs 5 and 6). It differs from E. sticta in: 1) the median apophysis having a lamella on the prolateral end vs. absent ( Mi et al. 2010: figs 22-24); 2) having a spur at the base of the conductor vs. absent ( Mi et al. 2010: figs 22 and 23); 3) the epigyne widest at base vs. widest medially ( Mi et al. 2010: figs 19 and 21); and 4) the median plate keeled vs. not keeled ( Mi et al. 2010: fig. 20).

Description.

Male (holotype, Figs 15A-D , 18D , 19H , 20H ). Total length 3.90. Carapace 1.80 long, 1.50 wide. Abdomen 1.90 long, 1.50 wide. Clypeus 0.10 high. Eye sizes and interdistances: AME 0.10, ALE 0.08, PME 0.10, PLE 0.05, AME-AME 0.10, AME-ALE 0.28, PME-PME 0.13, PME-PLE 0.35, MOA length 0.33 with anterior width 0.30 and posterior width 0.30. Leg measurements: I 6.05 (1.95, 2.25, 1.35, 0.50), II 4.90 (1.55, 1.80, 1.10, 0.45), III 2.85 (1.00, 0.95, 0.55, 0.35), IV 4.25 (1.40, 1.45, 1.00, 0.40). Carapace yellow-brown with yellow radial patches, cervical groove conspicuous, cephalic protuberance wider than AME diameter at base and less than an AME diameter in length. Chelicerae, endites, labium and sternum pale yellow. Legs yellow with inconspicuous dark rings. Abdomen about 1.5 times longer than wide, approximately straight posteriorly, dorsum with a wide, greyish-brown folium; ventre greyish-yellow.

Palp (Figs 15A, B , 18D ): median apophysis with a lamella and 2 spurs; embolus straight, as long as terminal apophysis in apical view; conductor bent at middle part and with pointed spur at base; terminal apophysis about 2 times longer than wide, with a spur close to embolus in apical view.

Female (paratype IZCAS-Ar41752, Figs 15 E, F , 16 ). Total length 5.00. Carapace 1.60 long, 1.40 wide. Abdomen 3.70 long, 2.40 wide. Clypeus 0.08 high. Eye sizes and interdistances: AME 0.10, ALE 0.08, PME 0.10, PLE 0.05, AME-AME 0.13, AME-ALE 0.25, PME-PME 0.18, PME-PLE 0.30, MOA length 0.30 with anterior width 0.28 and posterior width 0.30. Leg measurements: I 6.20 (2.10, 2.35, 1.25, 0.50), II 5.10 (1.60, 1.95, 1.10, 0.45), III 2.90 (1.00, 1.00, 0.55, 0.35), IV 4.50 (1.55, 1.55, 0.95, 0.45). Habitus similar to those of male, but paler and with white markings in ventre. All the specimens possess a straight posterior end of abdomen.

Epigyne (Fig. 16 ) about 1.1 times longer than wide; median plate keeled; copulatory openings narrow, curved; copulatory ducts long, directed medially, then turning laterally forming a semicircle and connected to the spermathecae ventrally; spermathecae ovoid, touching each other.

Variation.

Total length: ♂♂ 3.40-3.90; ♀♀ 3.50-5.80.

Distribution.

China (Yunnan).

Figures

Figure 14. Eriovixia yunnanensis, epigyne A ventral view B dorsal view C lateral view D dorsal view. Scale bars: 0.1 mm.

Figure 15. Eriovixia zhengi sp. nov., male holotype and female paratype A male palp, dorsal view B ibid., prolateral view C holotype habitus, dorsal view D ibid., lateral view E paratype habitus, dorsal view F ibid., ventral view. Scale bars: 0.1 mm (A, B); 1 mm (C-F).

Figure 16. Eriovixia zhengi sp. nov., female paratype, epigyne A ventral view B dorsal view C lateral view D dorsal view. Scale bars: 0.1 mm.

Figure 18. Male palps of Eriovixia spp, apical view A E. yaoi sp. nov. B E. yinae sp. nov. C E. yunnanensis D E. zhengi sp. nov. Scale bars: 0.1 mm.

Figure 19. Eye regions of Eriovixia spp, lateral view A E. ganae sp. nov. B E. liuhongi sp. nov. C E. tangi sp. nov. D E. wangchengi sp. nov. E E. yaoi sp. nov. F E. yinae sp. nov. G E. yunnanensis H E. zhengi sp. nov. Scale bars: 0.1 mm.

Figure 20. Leg II of Eriovixia spp, prolateral view A E. ganae sp. nov. B E. liuhongi sp. nov. C E. tangi sp. nov. D E. wangchengi sp. nov. E E. yaoi sp. nov. F E. yinae sp. nov. G E. yunnanensis H E. zhengi sp. nov. A, C-H male B female. Scale bars: 0.5 mm.