Ectatosticta shennongjiaensis, Wang & Zhao & Irfan & Zhang, 2021

Wang, Lu-Yu, Zhao, Jing-Xia, Irfan, Muhammad & Zhang, Zhi-Sheng, 2021, Review of the spider genus Ectatosticta Simon, 1892 (Araneae: Hypochilidae) with description of four new species from China, Zootaxa 5016 (4), pp. 523-542 : 534-535

Ectatosticta shennongjiaensis sp. nov.

Figures 3B–C , 11A–C , 15H , 16H , 18B , 19

Type material. Holotype male (SWUC-T-HY-03-01), China, Hubei Province, Shennongjia , 31°28′31″ N, 110°23′00″ E, elev. 1305 m, 24 October 2020, L.Y. Wang, Y. Zhang, J.X. Zhao and J.S. Luo leg. Paratypes: 3 males and 6 females (SWUC-T-HY-03-02~10), with same data as holotype .

Etymology. The specific name is derived from the type locality; noun in apposition.

Diagnosis. The male of this new species resembles E. pingwuensis sp. nov. ( Figs 9A–C , 15E , 16E ), in having four strong setae on cymbial lobe retrolaterally, but differs from the latter by the narrow conductor, the arc-shapededge of the embolic base ( Figs 11A–C , 15H , 16H ). The female of this new species resembles E. nyingchiensis sp. nov. ( Fig. 17E ) in having the ventral spermathecae as long as dorsal spermathecae, but differs from the latter by the ball-shaped end of the dorsal spermathecae ( Fig. 18B ).

Description. Male holotype ( Fig. 3B ). Total length 13.45. Prosoma 6.22 long, 4.04 wide; Opisthosoma 7.23 long, 4.24 wide. Eye sizes and interdistances: AME 0.23, ALE 0.35, PME 0.42, PLE 0.36; AME–AME 0.19, AME– ALE 0.32, PME–PME 0.40, PME–PLE 0.15, ALE–PLE 0.12. MOA 0.66 long, front 0.65 wide, back width 1.03. Clypeus 0.33 high. Chelicerae with eight promarginal and ten retromarginal teeth. Leg measurements: I 72.03 (19.39, 23.04, 18.74, 10.86); II 59.20 (16.34, 19.16, 15.38, 8.32); III 44.18 (13.17, 14.22, 11.25, 5.54); IV 58.12 (16.79, 18.17, 15.46, 7.70). Leg formula: 1243.

Male palp ( Figs 11A–C , 15H , 16H ). cymbium long, retrolaterally with a small semicircular lobe and a large one. Four strong setae originated from the large lobe. Embolus thin, length ratio of embolus to embolic base 1:1.5, basely grooved. Conductor long, sickle-shaped.

Female (One of paratypes, Fig. 3C ) total length 17.97. Prosoma 7.79 long, 4.95 wide; opisthosoma 10.26 long, 6.36 wide. Eye sizes and interdistances: AME 0.24, ALE 0.38, PME 0.46, PLE 0.41; AME–AME 0.26, AME– ALE 0.46, PME–PME 0.50, PME–PLE 0.27, ALE–PLE 0.15. MOA 0.75 long, front 0.71 wide, back width 1.23. Clypeus 0.52 high. Leg measurements: I 59.26 (16.55, 20.66, 14.52, 7.53); II 51.22 (14.53, 17.35, 12.76, 6.58); III 37.58 (11.36, 12.85, 9.24, 4.13); IV 47.38 (14.12, 15.49, 12.04, 5.73). Leg formula: 1243.

Female genitalia ( Fig. 18B ) with two pairs of strong and long spermathecae. Ventral spermathecae as long as dorsal spermathecae, apical end of dorsal spermathecae ball-shaped.

Distribution. Known only from the type locality, Hubei, China ( Fig. 19 ).

Figures

FIGURE 3. Photos of living specimens of Ectatosticta. A. E. pingwuensis, male holotype; B–C. E. shennongjiaensis (B, male holotype; C, female paratype); D–F. E. songpanensis (D, male holotype; E–F, female paratype; D–E from Shanba Township; F from Chuanzhusi Town).

FIGURE 9. Ectatosticta pingwuensis sp. nov. male holotype. A. Left male palp, apex of tarsus with bulb, prolateral view; B. Same, ventral view; C. Same, retrolateral view.

FIGURE 11. Ectatosticta shennongjiaensis sp. nov. male holotype.A. Left male palp, apex of tarsus with bulb, prolateral view; B. Same, ventral view; C. Same, retrolateral view.

FIGURE 15. Embolus and conductor of Ectatosticta left male palp, retrolateral view. A. E. bajie Lin & Li, 2021; B. E. davidi (Simon, 1889); C. E. deltshevi Platnick & Jäger, 2009; D. E. nyingchiensis sp. nov.; E. E. pingwuensis sp. nov.; F–G. E. rulai Lin & Li, 2021 (F from Jiuzhaigou, G from Wanglang); H. E. shennongjiaensis sp. nov.; I. E. songpanensis sp. nov.; J. E. wukong Lin & Li, 2020; K. E. yukuni Lin & Li, 2021. Abbreviations: Co, conductor; Em, embolus.

FIGURE 16. Cymbium apophysis of Ectatosticta left male palp, prolateral view. A. E. bajie Lin & Li, 2021; B. E. davidi (Simon, 1889); C. E. deltshevi Platnick & Jäger, 2009; D. E. nyingchiensis sp. nov.; E. E. pingwuensis sp. nov.; F–G. E. rulai Lin & Li, 2021 (F from Jiuzhaigou, G from Wanglang); H. E. shennongjiaensis sp. nov.; I. E. songpanensis sp. nov.; J. E. wukong Lin & Li, 2020; K. E. yukuni Lin & Li, 2021. Abbreviations: CL, cymbial lobe; TS, thickened setae.

FIGURE 17. Female genitalia of Ectatosticta, dorsal view. A. E. bajie Lin & Li, 2021; B–C. E. davidi (Simon, 1889); D. E. deltshevi Platnick & Jäger, 2009; E. E. nyingchiensis sp. nov.; F. E. pingwuensis sp. nov.. Abbreviations: DS, dorsal spermathecae; VS, ventral spermathecae.

FIGURE 18. Female genitalia of Ectatosticta, dorsal view. A. E. rulai Lin & Li, 2021; B. E. shennongjiaensis sp. nov.; C. E. songpanensis sp. nov.; D. E. wukong Lin & Li, 2020; E. E. xuanzang Lin & Li, 2020; F. E. yukuni Lin & Li, 2021. Abbreviations: DS, dorsal spermathecae; VS, ventral spermathecae.

FIGURE 19. Distribution records of Ectatosticta spp. in this study.