Eriovixia yunnanensis (Yin, Wang, Xie & Peng, 1990)

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 yunnanensis (Yin, Wang, Xie & Peng, 1990) Figs 13 , 14 , 18C , 19G , 20G

Neoscona yunnanensis Yin et al., 1990: 115, figs 283-287 (♀).

Eriovixia yunnanensis : Yin et al., 1997: 302, figs 209a-g (♀); Song, Zhu and Chen, 1999: 281, figs 167B, C and M (♀).

Type material examined.

Holotype ♀ (HNU), China: Yunnan, 2.VIII.1981, J.F. Wang leg.

Other material examined.

1♀ (IZCAS-Ar41720), China: Yunnan, Xishuangbanna, Mengla County, Menglun Township , Menglun Nature Reserve , secondary tropical seasonal rainforest (21°55.43'N, 101°16.44'E, 598 m alt.), 16-24.VIII.2006, G. Zheng leg. ; 1♀ (IZCAS-Ar41721), primary tropical seasonal rainforest (21°55.04'N, 101°16.50'E, 558 m alt.), 22.VII.2007 p.m., G. Zheng leg.; 1♂ (IZCAS-Ar41722), same locality (21°57.59'N, 101°12.21'E, 822 m alt.), 8.VIII.2007 a.m. G. Zheng leg. ; 1♂ (IZCAS-Ar41723), 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-Ar41724), 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-Ar41725), Lvshilin Forest Park (21°54.71'N, 101°16.90'E, 664 m alt.), 15.XI.2009, G. Tang et al. leg .; 2♀ (IZCAS-Ar41726), G213 roadside (21°54.46'N, 101°16.76'E, 644 m alt.), 20.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41727), G213 roadside (21°54.38'N, 101°16.82'E, 620 m alt.), 21.XI.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41728), same locality (21°54.39'N, 101°16.80'E, 627 m alt.), 22.XI.2009, G. Tang et al. leg .; 2♂ (IZCAS-Ar41729), secondary tropical forest near Lvshilin Forest Park (21°54.38'N, 101°16.82'E, 627 m alt.), 23.XI.2009, G. Tang et al. leg .; 1♀ (IZCAS-Ar41730), same locality (21°54.38'N, 101°16.82'E, 627 m alt.), 23.XI.2009, G. Tang et al. leg .; 1♂ 2♀ (IZCAS-Ar41731-41733), G213 roadside (21°53.67'N, 101°16.98'E, 589 m alt.), 26.XI.2009, G. Tang et al. leg.; 1♂ 1♀ (IZCAS-Ar41734), same locality (21°53.62'N, 101°16.96'E, 581 m alt.), 26.XI.2009, G. Tang et al. leg .; 1♀ (IZCAS-Ar41735), G213 roadside (21°54.09'E, 101°17.02'E, 570 m alt.), 28.XI.2009, G. Tang et al. leg.; 1♂ 1♀ (IZCAS-Ar41736), Lvshilin Forest Park, limestone seasonal rainforest (21°54.56'N, 101°16.86'E, 610 m alt.), 29.XI.2009, G. Tang et al. leg .; 1♂ (IZCAS-Ar41737), tropical evergreen rainforest (21°55.14'N, 101°16.30'E, 523 m alt.), 30.XI.2009, G. Tang et al. leg.; 1♀ (IZCAS-Ar41738), valley tropical seasonal rainforest (21°54.97'N, 101°16.43'E, 551 m alt.), 1.XII.2009, G. Tang et al. leg.; 1♂ (IZCAS-Ar41739), same locality (21°54.85'N, 101°16.55'E, 569 m alt.), 1.XII.2009, G. Tang et al. leg .; 1♂ (IZCAS-Ar41740), G213 roadside (21°53.99'N, 101°16.95'E, 590 m alt.), 2.XII.2009, G. Tang et al. leg.; 3♂ 2♀ (IZCAS-Ar41741), Yulinjiegou Scenic Spot (21°55.05'N, 101°16.24'E, 572.8 m alt.), 19.VII.2018, X. Mi et al. leg .; 4♂ (IZCAS-Ar41742), same locality (21°55.60'N, 101°15.50'E, 572.8 m alt.), 24.VII.2018, X. Mi et al. leg .; 2♂ 5♀ (IZCAS-Ar41743), same locality (21°55.13'N, 101°16.08'E, 552.4 m alt.), 5.VIII.2018, C. Wang et al. leg .; 1♂ (IZCAS-Ar41744), same locality (21°55.40'N, 101°16.36'E, 584 m alt.), 11.VIII.2018, C. Wang et al. leg .; 3♂ 6♀ (IZCAS-Ar41745), G213 roadside (21°52.65'N, 101°16.27'E, 575.0 m alt.), 31.VII.2018, Z. Bai et al. leg.; 2♀ (IZCAS-Ar41746), Masuoxing Village (21°54.02'N, 101°16.90'E, 561 m alt.), 27.IV.2019, Y. Tong et al. leg .; 1♀ (IZCAS-Ar41747), G213 roadside (21°54.34'N, 101°16.79'E, 618 m alt.), 2.V.2019, Y. Tong et al. leg.; 3♂ (IZCAS-Ar41748), #3 site in Mafengzhai Village (21°53.68'N, 101°17.33'E, 539 m alt.), 8.V.2019, Y. Tong et al. leg .

Comparative material.

Eriovixia jianfengensis Han & Zhu, 2010, 1♂, 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♀, same locality (18°44.61'N, 108°51.24'E, 812 m alt.), 12.IV.2019, C. Wang et al. leg .

Diagnosis.

Eriovixia yunnanensis resembles E. jianfengensis in general appearance, but can be distinguished from the latter by: 1) branches of the median apophysis very close to each other vs. more than 90° apart ( Han and Zhu 2010: figs 9D-E; Figs 21A-C ); 2) tip of the embolus with parallel margins in prolateral view vs. tapered to a pointed tip ( Han and Zhu 2010: fig. 9D; Figs 21A, C ); and 3) spermathecae touching each other vs. separated ( Han and Zhu 2010: figs 9A, B).

Description.

Male (IZCAS-Ar41731, Figs 13A-D , 18C , 19G , 20G ). Total length 3.40. Carapace 1.70 long, 1.60 wide. Abdomen 1.80 long, 1.60 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 0.18, PME-PME 0.13, PME-PLE 0.20, MOA length 0.30 with anterior width 0.33 and posterior width 0.30. Leg measurements: I 7.20 (2.35, 2.65, 1.55, 0.65), II 5.20 (1.75, 1.75, 1.20, 0.50), III 3.10 (1.05, 1.05, 0.60, 0.40), IV 4.55 (1.45, 1.55, 1.05, 0.50). Carapace yellowish-brown, cervical groove inconspicuous, cephalic protuberance narrower than AME diameter at base and about 1.5 AME diameter in length. Chelicerae, endites, labium and sternum yellow. Legs yellow, with inconspicuous dark rings. Abdomen about 1.1 times longer than wide, dorsum with a large, pale folium and with oblique dark markings posterolaterally; ventre greyish-brown with a pair of white arcuate patches and 2 pairs of white spots around the spinnerets.

Palp (Figs 13A, B , 18C ): median apophysis bifurcated, 2 branches, close to each other; embolus curved, distal half with parallel margins in prolateral view; conductor curled distally; terminal apophysis as long as embolus, bifurcated distally.

Female (IZCAS-Ar41732, Figs 13E, F , 14 ). Total length 4.10. Carapace 1.50 long, 1.40 wide. Abdomen 3.20 long, 2.70 wide. Clypeus 0.08 high. Eye sizes and interdistances: AME 0.10, ALE 0.08, PME 0.10, PLE 0.08, AME-AME 0.13, AME-ALE 0.15, PME-PME 0.10, PME-PLE 0.23, MOA length 0.28 with anterior width 0.30 and posterior width 0.30. Leg measurements: I 6.55 (2.20, 2.35, 1.40, 0.60), II 5.30 (1.75, 1.85, 1.15, 0.55), III 2.95 (1.00, 1.05, 0.50, 0.40), IV 4.50 (1.50, 1.55, 0.95, 0.50). Habitus similar to that of male, but cephalic region darker.

Epigyne (Fig. 14 ) triangular, about 1.25 times longer than wide; median plate keeled; copulatory openings arcuate; copulatory ducts short, extended anteriorly from their origin, then retraced and connected to the spermathecae at its posterior surface; spermathecae globular, touching each other.

Variation.

Total length: ♂♂ 3.20-3.60; ♀♀ 3.70-5.00.

Distribution.

China (Yunnan).

Comments.

The females collected from Xishuangbanna are almost identical to the holotype of E. yunnanensis .

Figures

Figure 13. Eriovixia yunnanensis A male palp, dorsal view B ibid., prolateral view C male habitus, dorsal view D ibid., lateral view E female habitus, dorsal view F ibid., ventral view. Scale bars: 0.1 mm (A, B); 1 mm (C-F).

Figure 14. Eriovixia yunnanensis, 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.