Sinopoda guangyuanensis, Zhong & Jäger & Chen & Liu, 2018

Zhong, Yang, Jäger, Peter, Chen, Jian & Liu, Jie, 2018, Taxonomic review of the Sinopoda okinawana - group (Araneae: Sparassidae) in China, Zootaxa 4388 (3), pp. 328-346 : 333-342

Sinopoda guangyuanensis sp. nov.

Figs 4A–E , 5A–E , 11A–D , 14

Type material. Holotype male: CHINA: Sichuan Province: Guangyuan City, Qingchuan County, Qingxi Town , 32°28'N, 104°50'E, 1028 m, 3 May 2013, Li Zhao, Xiangwei Meng & Hongsheng Zhao leg. ( SWUC) . Paratypes: 1 male, 6 females, with same data as holotype .

Etymology. The specific name is a Latin adjective, referring to the type locality, the Guangyuan City.

Diagnosis. This new species is very similar to S. hamata , but can be distinguished from the latter by the following characters: 1. spermophor slightly curved in S. guangyuanensis sp. nov., but significantly curved in S. hamata ; 2. dorsal RTA moderately long, extending only to half of cymbial furrow, with smooth margin in S. guangyuanensis sp. nov., but significantly longer, extending beyond cymbial furrow, with complicatedly curved margin in S. hamata ; 3. glandular appendages long, slender, slightly extending laterally beyond the posterior part of spermathecae, without swollen end in S. guangyuanensis sp. nov., but generally stouter, with swollen end in S. hamata ; 4. epigynal bulges distinct in S. guangyuanensis sp. nov., but indistinct in S. hamata ( Figs 4A–E , 5A–E , 6 A–E , 7A–E ).

Description. Male (holotype): Measurements: PL 6.7, PW 6.2; AW 2.9; OL 8.8, OW 4.3. Eyes: AME 0.28, ALE 0.44, PME 0.31, PLE 0.47, AME–AME 0.23, AME–ALE 0.09, PME–PME 0.28, PME–PLE 0.62, AME– PME 0.43, ALE–PLE 0.45, CH AME 0.19, CH ALE 0.23. Spination: Palp: 131, 101, 1021; Fe: I–III 323, IV 331; Pa: I–IV 101; Ti: I–IV 2326; Mt: I–III 2024, IV 3036. Measurements of palp and legs: Palp 10.3 (3.8, 1.7, 2.1, –, 2.7); I 42.4 (10.5, 3.5, 11.6, 12.7, 4.1); II 47.2 (11.9, 3.5, 12.7, 14.9, 4.2); III 36.0 (9.8, 3.5, 9.2, 10.3, 3.2); IV 39.7 (10.2, 3.3, 10.3, 12.1, 3.8). Leg formula: II-I-IV-III. Cheliceral furrow with 3 anterior and 4 posterior teeth and with ca. 27 denticles.

Palp as in diagnosis. Cymbium distinctly longer than tibia. Embolus distinctly S-shaped, arising from tegulum in 7 to 8-o’clock-position in ventral view, with embolic tip as long as embolic apophysis. Tegulum covering proximal part of embolus. RTA arising medially from tibia. Ventral RTA small, trapezoid in retrolateral view ( Figs 4A–C , 5A–C ).

Dorsal prosoma yellowish-brown, lateral margins dark, with yellow submarginal transversal light band posteriorly. Fovea and radial furrows distinctly marked. Labium and gnathocoxae yellowish-brown, both with distal parts brighter. Sternum yellowish-brown, with margin brown. Chelicerae deep reddish-brown. Legs yellowish-brown with dark spots. Dorsal opisthosoma dark brown, covered by brown hairs, with three pairs of dark patches laterally and one dark transversal band above spinnerets. Ventral opisthosoma yellowish-brown with irregular pattern ( Figs 11A–B ).

Female: Measurements: PL 7.4, PW 6.4; AW 3.4; OL 11.2, OW 7.0. Eyes: AME 0.26, ALE 0.43, PME 0.28, PLE 0.45, AME–AME 0.25, AME–ALE 0.13, PME–PME 0.38, PME–PLE 0.56, AME–PME 0.50, ALE–PLE 0.50, CH AME 0.21, CH ALE 0.25. Spination: Palp: 131, 101, 2121, 1014; Fe: I–III 323, IV 331; Pa: I–IV 101; Ti: I–II 2026, III–IV 2126; Mt: I–II 2024, III 2026, IV 3036. Measurements of palp and legs: Palp 10.1 (3.3, 1.6, 2.0, –, 3.2); I 29.5 (8.4, 3.3, 8.0, 7.5, 2.3); II 33.2 (9.5, 3.7, 9.2, 8.2, 2.6); III 27.6 (8.2, 3.3, 7.0, 6.8, 2.3); IV 28.6 (8.8, 2.5, 7.2, 7.8, 2.3). Leg formula: II-I-IV-III. Cheliceral furrow with 3 anterior and 4 posterior teeth and with ca. 35 denticles.

Copulatory organ as in diagnosis. Epigynal field wider than long, with long anterior bands, with one slit sensillum on each side of the epigynal field. Lateral lobes fused, with median incision. Internal ducts running two thirds parallel along the median line. Fertilization ducts arising posterio-laterally ( Figs 4D–E , 5D–E ).

Colouration in ethanol: As in males, but dorsal prosoma and opisthosoma reddish-brown. Ventral prosoma and opisthosoma slightly darker than in males ( Figs 11C–D ).

Distribution. China (Sichuan) ( Fig. 14 ).

Figures

FIGURES 4A–E. Sinopoda guangyuanensis sp. nov., holotype male and paratype female from Qingxi ToWn. A–C Left male palp (A prolateral, B ventral, C retrolateral); D Epigyne, ventral; E Vulva, dorSal. AB—anterior bandS, C—conductor, CF—cymbial furroW, dRTA—dorSal retrolateral tibial apophySiS, E—emboluS, EA—embolic apophySiS, EB—epigynal bulgeS, FB—fuSion bubble, FD—fertilization duct, GA—glandular appendage, LL—lateral lobeS, LS—lobal Septum, MS—membranouS Sac, PP—poSterior part of Spermathecae, SP—Spermophor, SS—Slit SenSillum, ST—Subtegulum, T—tegulum, vRTA—ventral retrolateral tibial apophySiS. Scale barS: 0.5 mm.

FIGURES 5A–E. Sinopoda guangyuanensis sp. nov., holotype male and paratype female from Qingxi ToWn. A–C Left male palp (A prolateral, B ventral, C retrolateral); D Epigyne, ventral; E Vulva, dorSal. Scale barS: 0.5 mm.

FIGURES 6A–E. Sinopoda hamata (Fox, 1937) from Yunfeng Temple. A–C Left male palp (A prolateral, B ventral, C retrolateral); D Epigyne, ventral; E Vulva, dorSal. AB—anterior bandS, C—conductor, dRTA–dorSal retrolateral tibial apophySiS, E—emboluS, EA—embolic apophySiS, FD—fertilization duct, GA—glandular appendage, LL—lateral lobeS, LSlobal Septum, MS—membranouS Sac, PP—poSterior part of Spermathecae, SP—Spermophor, SS—Slit SenSillum, ST— Subtegulum, T—tegulum, vRTA—ventral retrolateral tibial apophySiS. Scale barS: 0.5 mm.

FIGURES 7A–E. Sinopoda hamata (Fox, 1937) from Yunfeng Temple. A–C Left male palp (A prolateral, B ventral, C retrolateral); D Epigyne, ventral; E Vulva, dorSal. Scale barS: 0.5 mm.

FIGURES 11A–D. HabituS of Sinopoda guangyuanensis sp. nov. from Qingxi ToWn. A–B Male (A dorSal, B ventral); C–D Female (C dorSal, D ventral). Scale barS: 2 mm.

FIGURE 14. Collection localitieS of five Sinopoda SpecieS in the okinawana-group from China.