Ectatosticta pingwuensis, 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 : 532-533

Ectatosticta pingwuensis sp. nov.

Figures 3A , 9A–C , 15E , 16E , 17F , 19

Type material. Holotype male (SWUC-T-HY-02-01), China, Sichuan Province, Pingwu County, 32°42′46″ N, 104°22′37″ E, elev. 1801 m, 15 October 2020, L.Y. Wang, Y. Zhang, J.X. Zhao and J.S. Luo leg. Paratypes: 7 females (SWUC-T-HY-02-02~08), with same data as holotype ; 1 female (SWUC-T-HY-02-09), Pingwu County, 32°42′46″ N, 104°22′37″ E, elev. 1801 m, 14 October 2018, Z.S. Zhang, L.Y. Wang, F. Zheng, P. Liu and T. Yuan leg. ; 2 females (SWUC-T-HY-02-10~11), Pingwu County, 24 September 2018, L.Y. Wang, F. Zheng, P. Liu, T. Yuan, Y. Zhang and M. Zhang leg.

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

Diagnosis. The male of this new species resembles E. shennongjiaensis sp. nov. ( Figs 11A–C , 15H , 16H ) in having four strong setae on cymbial lobe, but differs from the latter by the wide conductor, the right-angled lower edge of the embolic base ( Figs 9A–C , 15E , 16E ). The female of this new species resembles E. yukuni Lin & Li, 2021 ( Fig. 18F ) in having two pairs of spermathecae, but differs from the latter by the dorsal spermathecae longer than a half of ventral spermathecae ( Fig. 17F ).

Description. Male holotype ( Fig. 3A ). total length 11.50. Prosoma 5.26 long, 3.36 wide; Opisthosoma 6.10 long, 3.40 wide. Eye sizes and interdistances: AME 0.15, ALE 0.24, PME 0.21, PLE 0.23; AME–AME 0.13, AME– ALE 0.33, PME–PME 0.41, PME–PLE 0.22, ALE–PLE 0.04. MOA 0.41 long, front 0.43 wide, back width 0.78. Clypeus 0.40 high. Chelicerae with six promarginal and nine retromarginal teeth. Leg measurements: I 67.19 (18.21, 21.55, 17.13, 10.30); II 55.82 (15.19, 17.86, 14.69, 8.08); III 43.99 (13.34, 14.51, 10.99, 5.15); IV 56.19 (16.83, 17.87, 14.76, 6.73). Leg formula: 1423.

Male palp ( Figs 9A–C , 15E , 16E ). Cymbium long, retrolaterally with a small semicircular lobe and a large lobe bearing four strong setae. Embolus thin, length ratio of embolus to embolic base 1:2, basaly grooved. Conductor long, sickle-shaped.

Female (One of paratypes). Total length 17.02. Prosoma 8.39 long, 5.27 wide; Opisthosoma 9.24 long, 2.96 wide. Eye sizes and interdistances: AME 0.34, ALE 0.44, PME 0.47, PLE 0.46; AME–AME 0.27, AME–ALE 0.49, PME–PME 0.63, PME–PLE 0.36, ALE–PLE 0.05. MOA 0.78 long, front 0.89 wide, back width 1.31. Clypeus 0.62 high. Chelicerae with eight promarginal and six retromarginal teeth. Leg measurements: I 65.05 (18.79, 22.67, 15.54, 8.05); II 56.16 (16.11, 19.20, 13.82, 7.03); III 41.68 (12.46, 14.05, 10.21, 4.96); IV 51.12 (15.21, 16.21, 13.44, 6.26). Leg formula: 1243.

Female genitalia ( Fig. 17F ). Dorsal spermathecae longer than a half length of ventral spermathecae, ventral spermathecae arc-shaped, 1.5 times longer than the length of dorsal spermathecae.

Distribution. Known only from the type locality, Sichuan, 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.