Eriovixia yaoi, 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 yaoi sp. nov. Figs 9 , 10 , 18A , 19E , 20E

Type material.

Holotype ♂ (IZCAS-Ar41684), China: Yunnan, Xishuangbanna, Mengla County, Menglun Township, Menglun Nature Reserve, Lvshilin Forest Park, limestone seasonal rainforest (21°54.61'N, 101°16.89'E, 640 m alt.), 14.XI.2009, G. Tang et al. leg. Paratypes: 1♂2♀ (IZCAS-Ar41685-41687), same data as holotype; 1♀(IZCAS-Ar41688), secondary seasonal moist forest (21°54.54'N, 101°17.20'E, 713 m alt.), 1-9.X.2006, G. Zheng leg.; 1♀ (IZCAS-Ar41689), same locality (21°54.54'N, 101°17.20'E, 713 m alt.), 19-25.X.2006, G. Zheng leg.; 1♂ (IZCAS-Ar41690), same locality (21°54.72'N, 101°16.94'E, 645 m alt.), 27.VII.2007 G. Zheng leg.; 1♂ (IZCAS-Ar41691), same locality (21°54.61'N, 101°17.01'E, 633 m alt.), 28.VII.2007 a.m. G. Zheng leg. Other material examined: 4♂2♀ (IZCAS-Ar41692), same locality (21°54.39'N, 101°16.81'E, 612 m alt.), 10.VIII.2007 a.m. G. Zheng leg.; 2♀ (IZCAS-Ar41693), secondary tropical montane evergreen broad-leaved forest (21°57.53'N, 101°12.38'E, 899 m alt.), 6.VIII.2007, G. Zheng leg.; 1♂ (IZCAS-Ar41694), primary tropical seasonal rainforest (21°57.67'N, 101°11.89'E, 790 m alt.), 7.VIII.2007 a.m. G. Zheng leg.; 1♂1♀ (IZCAS-Ar41695), Anogeissus acuminata plantation (about 20 yr) (21°53.99'N, 101°16.81'E, 611 m alt.), 19.VIII.2007 a.m. G. Zheng leg.; 1♀ (IZCAS-Ar41696), Lvshilin Forest Park (21°54.71'N, 101°16.90'E, 656 m alt.), 13.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41697), same locality (21°54.71'N, 101°16.90'E, 664 m alt.), 15.XI.2009, G. Tang et al. leg.; 2♂1♀ (IZCAS-Ar41698), same locality (21°54.71'N, 101°16.94'E, 652 m alt.), 16.XI.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41699), same locality (21°54.71'N, 101°16.94'E, 660 m alt.), 16.XI.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41700), same locality (21°54.56'N, 101°16.86'E, 615 m alt.), 29.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41701), same locality (21°54.68'N, 101°16.95'E, 637 m alt.), 10.VIII.2018 night, C. Wang et al. leg; 2♀ (IZCAS-Ar41702), same locality (21°54.38'N, 101°16.82'E, 627 m alt.), 23.XI.2009, G. Tang et al. leg.;1♂ (IZCAS-Ar41703), same locality (21°54.58'N, 101°16.50'E, 566.2 m alt.), 28.IV.2019 night, C. Wang et al. leg; 1♀ (IZCAS-Ar41704), same locality (21°54.38'N, 101°16.82'E, 627 m alt.), 23.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41705), G213 roadside (21°54.12'N, 101°16.93'E, 590 m alt.), 24.XI.2009, G. Tang et al. leg.; 2♀ (IZCAS-Ar41706), same locality (21°54.09'E, 101°17.02'E, 570 m alt.), 28.XI.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41707), G213 roadside (21°53.83'N, 101°17.00'E, 618 m alt.), 25.XI.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41708), same locality (21°53.65'N, 101°16.98'E, 589 m alt.), 26.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41709), banyan plantation (21°54.09'E, 101°17.02'E, 579 m alt.), 28.XI.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41710), G213 roadside (21°53.99'N, 101°16.95'E, 590 m alt.), 2.XII.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41711), same locality (21°53.80'N, 101°17.08'E, 604.0 m alt.), 30.VII.2018, Z. Bai et al. leg; 2♀ (IZCAS-Ar41712), G213 roadside near Lvshilin (21°53.28'N, 101°16.75'E, 629.0 m alt.), 25.IV.2019, C. Wang et al. leg; 2♂ (IZCAS-Ar41713), G213 roadside (21°54.34'N, 101°16.79'E, 618 m alt.), 2.V.2019, Y. Tong et al.; 2♀ (IZCAS-Ar41714), #3 site in Mafengzhai Village (21°53.68'N, 101°17.33'E, 539 m alt.), 8.V.2019, Y. Tong et al.

Comparative material.

Eriovixia jianfengensis Han & Zhu, 2010, 1♂ (TRU), CHINA: Hainan, Ledong County, Jianfeng Township, Jianfengling National Natural Reserve (18°44.45'N, 108°51.49'E, 856 m alt.), 11.IV.2019, C. Wang et al. leg .; 2♀ (TRU), same locality (18°44.61'N, 108°51.24'E, 812 m alt.), 12.IV.2019, C. Wang et al. leg .

Etymology.

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

Diagnosis.

Eriovixia yaoi sp. nov. resembles E. jianfengensis Han & Zhu, 2010 in habitus and copulatory organs, but differs in: 1) male lacking cephalic protuberance vs. present (Fig. 21D ); 2) inner branch of the terminal apophysis longer than outer branch vs. inner branch shorter than outer branch (Fig. 21A ); 3) narrower conductor vs. wider (Fig. 21A ); 4) epigyne triangular and slightly lobed (enlarged medially) vs. triangular, without lobes ( Han and Zhu 2010: figs 9A, B); and 5) carapace unicolour vs. darker in ocular region with dark, thin medial line on cephalic region ( Han and Zhu 2010: figs 2B-D).

Description.

Male (holotype, Figs 9A-D , 18A , 19E , 20E ). Total length 3.30. Carapace 1.70 long, 1.40 wide. Abdomen 1.60 long, 1.40 wide. Clypeus 0.18 high. Eye sizes and interdistances: AME 0.10, ALE 0.08, PME 0.10, PLE 0.08, AME-AME 0.10, AME-ALE 0.15, PME-PME 0.15, PME-PLE 0.18, MOA length 0.30 with anterior width 0.33 and posterior width 0.30. Leg measurements: I 6.50 (2.10, 2.35, 1.50, 0.55), II 4.60 (1.50, 1.55, 1.05, 0.50), III 3.20 (1.05, 1.05, 0.65, 0.45), IV 4.50 (1.40, 1.55, 1.10, 0.45). Carapace yellowish-white, cervical groove obvious, cephalic protuberance lacking. Chelicerae, endites, labium and sternum yellow. Legs yellowish-brown, with dark rings on tibia of legs III-IV. Abdomen about 1.2 times longer than wide, dorsum with a large, pale folium, black-brown posterolaterally; ventre greyish-yellow with brown markings laterally.

Palp (Figs 9A, B , 18A ): median apophysis with 2 pointed branches; embolus conical, longer than terminal apophysis in prolateral view, slightly curved near tip of terminal apophysis; terminal apophysis elliptical in apical view, bifurcated distally.

Female (paratype IZCAS-Ar41685, Figs 9E, F , 10 ). Total length 4.40. Carapace 1.90 long, 1.50 wide. Abdomen 3.10 long, 2.90 wide. Clypeus 0.08 high. Eye sizes and interdistances: AME 0.13, ALE 0.08, PME 0.10, PLE 0.08, AME-AME 0.10, AME-ALE 0.18, PME-PME 0.15, PME-PLE 0.23, MOA length 0.30 with anterior width 0.33 and posterior width 0.33. Leg measurements: I 6.85 (2.25, 2.45, 1.50, 0.65), II 6.05 (1.95, 2.05, 1.45, 0.60), III 3.50 (1.15, 1.20, 0.70, 0.45), IV 5.15 (1.75, 1.80, 1.10, 0.50). Habitus similar to that of male, but cervical groove more conspicuous.

Epigyne (Fig. 10 ) about 1.2 times longer than wide, with a triangular, laterally constricted scape; median plate keeled; copulatory openings arcuate in posterior view; copulatory ducts directed ventrally and extended anteriorly, then ventrally again, connected to the spermathecae at its posterior surface; spermathecae globular, separated from each other.

Variation.

Total length: ♂♂ 3.30-3.40; ♀♀ 3.90-4.40.

Distribution.

China (Yunnan).

Figures

Figure 9. Eriovixia yaoi 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 10. Eriovixia yaoi 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.

Figure 21. Eriovixia jianfengensis Han & Zhu, 2010 A male palp, dorsal view B ibid., prolateral view C ibid., apical view D eye region of male, lateral view. Scale bars: 0.1 mm.