Sinopoda helii Wang & Li, 2021

Lin, Yejie, Marusik, Yuri M., Gao, Caixia, Xu, Hao, Zhang, Xiaoqing, Wang, Ziyi, Zhu, Wenhui & Li, Shuqiang, 2021, Twenty-three new spider species (Arachnida: Araneae) from Asia, Zoological Systematics 46 (2), pp. 91-152 : 126-128

Sinopoda helii Wang & Li , sp. nov. ( Figs 32A–F , 33A–B )

Diagnosis. The males of this new species are similar to S. globosa Zhang, Zhang & Zhang, 2015 ( Zhang et al., 2015: 65, figs 17–32; Zhong et al., 2019: 32, figs 24A–F, 25A–D) and S. longiducta Zhang, Zhang & Zhang, 2015 ( Zhang et al., 2015: 69, figs 33–37, 42–45; Zhong et al., 2019: 45, figs 34A–B, 35A–F, 36A–D) in having a nearly straight Sp and similar C, but the new species can be recognized by the following: the C is longer than the E or EA (vs. the C, E, and EA are all of equal length in S. globosa ), S. helii Wang & Li , sp. nov. has a smooth, long, straight vRTA (vs. short and curved in S. globosa and S. longiducta ); the dRTA is slender and long, with the tip enlarged and blunt in the new species (vs. the dRTA is shorter in S. longiducta , and the tip of the dRTA in S. globosa is angular); the tip of EA is triangular and wider in the new species, (vs. EA are flagelliform and equal width in S. globosa and S. longiducta ). The females of this new species are similar to S. globosa in having a short GA, and the anterior part of internal duct system is fused with the median line, but they differ from S. globosa by: the triangular LS (vs. more rounded in S. globosa ), the LL extend horizontally in this species (vs. not the case in S. globosa ( Fig. 32A ); the anterior part of the internal ducts are folded ventrally (vs. in S. globosa , the internal ducts are slightly bent), the posterior part of the S extend diagonally and are as wide as the anterior part of the internal ducts system (vs. horizontal and swollen in S. globosa ) ( Fig. 33B ).

Description. Male (holotype, IZCAS-Ar42441, Figs 32A–F ) Measurements: PL 6.85, PW 6.6; AW 3.46; OL 7.69, OW 4.8. Eyes: AME 0.25, PME 0.27, ALE 0.41, PLE 0.57, AME–AME 0.15, AME–ALE 0.07, PME–PME 0.23, PME–PLE 0.42, AME–PME, 0.42, ALE–PLE 0.33, CH –AME 0.17, CH –ALE 0.26. Palp 10.69 (3.26, 2.05, 2.37, –, 3.01). Leg measurements: Leg I 50.35 (12.17 + 2.75 + 14.74 + 16.34 + 4.35); leg II 57.73 (15.38 + 3.07 + 16.79 + 17.75 + 4.74); leg III 40.17 (11.53 + 2.69 + 11.73 + 11.28 + 2.94); leg IV 43.12 (10.70 + 2.69 + 12.56 + 13.39 + 3.78). Leg formula 2143. Spination: Palp 131 101 303 1310. Legs: Femur I and II 323, III and IV 333, Patella 101, Tibia I 2128, II 1218, III and IV 2326 Metatarsus I and II 1014, III 2024, IV 2026. Chelicerae: Furrow with 3 anterior teeth, 4 posterior teeth, and 18 denticles.

Cymbium longer than tibia. E arising from T at 7-o’clock-position in ventral view, with embolic tip as long as EA. T not covering E. RTA arising basally from tibia, base of RTA with a brush of setae ( Figs 32A–D ).

Female (paratype, IZCAS-Ar42444, Figs 33A–B ). Measurements : PL 6.6 , PW 6.08 ; AW 3.65; OL 7.56, OW 3.84. Eyes : AME 0.2, PME 0.28, ALE 0.41, PLE 0.44, AME–AME 0.18, AME–ALE 0.16, PME–PME 0.3, PME–PLE 0.46, AME– PME 0.4, ALE–PLE 0.34, CH –AME 0.4, CH –ALE 0.44. Palp : 9.53 (2.94, 1.15, 2.24, –, 3.2). Leg measurements: Leg I 31.45 (7.75 + 2.88 + 9.29 + 8.65+ 2.88); leg II 32.99 (9.23 + 2.56 + 9.61 + 8.65 + 2.94); leg III 29.73 (7.69 + 2.24 + 9.10 + 7.69+ 3.01); leg IV 31.13 (7.62 + 2.37+ 8.97+ 8.97+ 3.20). Leg formula 2143. Spination : Palp 141 101 303 3030. Legs : Femur 323, Patella 101, Tibia I and II 1018 , III 2126, IV 2226, Metatarsus I and II 1014 , III 2026, IV 3036 . Chelicerae: Furrow with 3 anterior teeth, 4 posterior teeth, and 21 denticles .

Epigynal field wider than long, with two short AB and one slit sensillum on each side, close to the field. LL fused. Internal ducts system as wide as half the epigynal field. FDs arising posteriorly. Unexpanded MS between FDs ( Figs 33A, B ).

Material examined. Holotype ♂, China: Sichuan Province, Meishan City, Renshou District , Lujia Town , Huanggu Cave (29.8186°N, 104.3944°E; elev. ca. 470 m), 8 March 2020, leg. Li He, Yuan Li, and Chao Zhou (IZCAS-Ar42441). Paratypes. 2♂ (IZCAS-Ar42442–Ar42443), 2♀ (IZCAS-Ar42444–Ar42445); same data as holotype .

Distribution. Known only from the type locality.

Etymology. The specific name is dedicated to Mr. Li He, one of the collectors of this species; name in genitive case.

Figures

Figure 32. Sinopoda helii Wang & Li, sp. nov., holotype male. A. Left palp, prolateral view; B. Left palp, ventral view; C. Left palp, retrolateral view; D. RTA, retrolateral view; E. Habitus, dorsal view; F. Habitus, ventral view. Scale bars: A–D = 0.5 mm; E–F = 2.0mm.

Figure 33. Sinopoda helii Wang & Li, sp. nov., paratype female.A. Epigyne, ventral view; B. Vulva, dorsal view. Scale bars=0.5mm.