Sinopoda jiangzhou Wang & Li, 2021

Wang, Ziyi, Liang, Wei & Li, Shuqiang, 2021, Five new Sinopoda species (Araneae, Sparassidae) from China and Thailand, ZooKeys 1012, pp. 1-19 : 1

Sinopoda jiangzhou Wang & Li sp. nov. Figs 3A-F , 4A, B , 9C, D , 10

Material examined.

Holotype ♂ (IZCAS-Ar41607), China, Guangxi Zhuang Autonomous Region, Hechi City, Fengshan County, Jiangzhou Village, Underground Gallery; 24.3314°N, 106.9871°E; 449 m; 13 Sept. 2019; Ziyi Wang & Zhigang Chen leg. Paratype 1 ♂ (IZCAS-Ar41608), same data as holotype. 1 ♀ (IZCAS-Ar41609), same data as holotype, but 25 Mar. 2015; Yunchun Li & Zhigang Chen leg.

Diagnosis.

This new species is similar to Sinopoda tumefacta Zhong, Jäger, Chen & Liu, 2019 ( Zhong et al. 2019: 69, figs 53A-E, 54A-F, 55A-D) in the structure of the embolus and RTA but can be recognized by the following characters: in the male, the conductor is straight and fan-shaped, unlike in S. tumefacta ( Zhong et al. 2019: fig. 53B) where the conductor is curved and covered by the embolus; the sub-tegulum is noticeably higher in the new species (Fig. 3A-D ), but not in S. tumefacta ; the embolus arises from the tegulum at the 6- o’clock position but at the 5- o’clock position in S. tumefacta . The female resembles S. tumefacta in the structure of the anterior part of internal ducts and the glandular appendages, which is longer than the posterior part of internal duct system but differs from S. tumefacta by: the lateral lobes of the new species (Fig. 4A, B ) are narrow, but they are wider in S. tumefacta ( Zhong et al. 2019: fig. 53D, E); the lobal septum is slender in the new species but broader in S. tumefacta .

Description.

Male (holotype, IZCAS-Ar41607) Measurements: PL 5.7, PW 4.8; AW 2.43; OL 6.21, OW 3.52. Eyes: AME 0.17, PME 0.23, ALE 0.34, PLE 0.35, AME-AME 0.09, AME-ALE 0.03, PME-PME 0.18, PME-PLE 0.21, AME-PME 0.25, ALE-PLE 0.21, CHAME 0.23, CHALE 0.2. Palp: 9.03 (3.26, 1.41, 1.6, -, 2.76). Legs: I 32.48 (8.78, 2.24, 9.74, 9.03, 2.69); II 35.62 (10.51, 2.05, 10.57, 9.74, 2.75); III 29.15 (8.14, 2.11, 8.33, 7.88, 2.69); IV 30.43 (8.01, 2.11, 8.84, 8.65, 2.82). Leg formula: II-I-IV-III. Spination: Palp: 131, 101, 2101. Legs: Fe 323, IV 123, Pa 101, Ti 2226, Mt I and II 1014, III and IV 2026. Chelicerae: furrow with three anterior teeth, four posterior teeth, and nine denticles.

Palp: as in diagnosis. Cymbium longer than tibia. Embolus arising from tegulum at the 6- o’clock position, tip of embolus bent. Embolic apophysis bent at a right angle, slender. Tegulum covering middle of the embolus. Conductor arising from the tegulum at the 1- o’clock-position, elongated straight. Spermophor slightly bent. RTA arising from anterior part of tibia, vRTA smaller than dRTA (Fig. 3B ).

Coloration in ethanol: yellowish brown. Prosoma: dorsally yellowish brown with fovea and cuticular with a radial pattern. Sternum and ventral coxae pale yellowish brown. Gnathocoxae reddish brown, labium yellowish brown. Chelicerae reddish brown. Legs: light yellowish brown. Opisthosoma: including spinnerets, khaki, sparsely covered with dark hairs (Fig. 3E, F ); dorsally with some brown dots and ventrally with two long, distinct furrows posteriorly.

Female (paratype, IZCAS-Ar41609) Measurements: PL 4.23, PW 4.16; AW 2.49; OL 5.96, OW 3.26. Eyes: AME 0.14, PME 0.26, ALE 0.32, PLE 0.34, AME-AME 0.1, AME-ALE 0.06, PME-PME 0.22, PME-PLE 0.36, AME-PME 0.26, ALE-PLE 0.24, CHAME 0.14, CHALE 0.18. Palp: 6.45 (1.66, 1.02, 1.21, -, 2.56). Legs: I 23.12 (6.41, 2.05, 6.47, 6.21, 1.98); II 24.07 (7.05, 2.17, 7.17, 5.44, 2.24); III 22.47 (6.53, 1.85, 6.02, 6.15, 1.92); IV 23.62 (6.66, 1.92, 6.79, 6.08, 2.17). Leg formula: II-I-IV-III. Spination: palp: 131 101 2130 4140. Legs: Fe 323, IV 123, Pa 101, Ti I and II 1018, III 2026, IV 2126, Mt I and II 1014, III and IV 2026. Chelicerae: furrow with three anterior teeth, four posterior teeth, and nine denticles.

Copulatory organ: as in diagnosis. Epigynal field wider than long, with short anterior bands. Lateral lobes fused, with wide median incision and distinct, bilobed margin. Fertilization ducts arising posterolaterally. Unexpanded membranous sac between fertilization ducts (Fig. 4A, B ).

Coloration in ethanol: as in male (Fig. 9C, D ).

Etymology.

The specific name refers to the type locality, Jiangzhou Village; noun in apposition.

Distribution.

Known only from the type locality (Fig. 10 , China, Guangxi).

Figures

Figure 3. Sinopoda jiangzhou sp. nov., holotype male from Underground Gallery A-C left palp (A prolateral B ventral C retrolateral) D retrolateral view of RTA E, F habitus (E dorsal F ventral). Abbreviations: C conductor, dRTA dorsal branch of retrolateral tibial apophysis, E embolus, EA embolic apophysis, SP spermophor, ST subtegulum, T tegulum, vRTA ventral branch of retrolateral tibial apophysis. Scale bars: 0.5 mm (A-D); 2 mm (E, F).

Figure 4. Sinopoda jiangzhou sp. nov., paratype female from Underground Gallery A epigyne B vulva. Abbreviations: AB anterior bands, FD fertilization ducts, GA glandular appendages, LL lateral lobes, LS lobal septum, MS membranous sac, PP posterior part of internal duct system. Scale bars: 0.5 mm.

Figure 9. A, B S. hongruii sp. nov. female paratype C, D S. jiangzhou sp. nov. female paratype E, F S. saiyok sp. nov. female holotype G, H S. yanjin sp. nov. female holotype I, J S. yanzi sp. nov. female paratype. Scale bars: 2 mm.

Figure 10. Locality records for five new species of Sinopoda: 1 S. hongruii sp. nov. (Anhui, China) 2 S. jiangzhou sp. nov. (Guangxi, China) 3 S. saiyok sp. nov. (Kanchanaburi, Thailand) 4 S. yanjin sp. nov. (Yunnan, China) 5 S. yanzi sp. nov. (Hunan, China).