Sinopoda subcampanacea, Zhang & Zhang & Zhang, 2023

Zhang, Rui, Zhang, Baoshi & Zhang, Feng, 2023, Two new huntsman spiders from Xiaolong Mountains in Gansu Province, China (Araneae, Sparassidae), Zootaxa 5244 (2), pp. 182-190 : 186

Sinopoda subcampanacea sp. n.

Figs 10–19

Type material. Holotype male (MHBU-ARA-2021-382-1): CHINA: Gansu Province: Hui County, Jialing Town, Xiaolongshan National Nature Reserve , 34°8′8″N, 106°31′56″E, 1347 m, 15 August 2021, Zhaoyi Li & Rui Zhang leg. Paratype: 1♀ (MHBU-ARA-2021-382-2), with same data as holotype .

Etymology. The specific name is an adjective, referring to the similarity to S. campanacea Wang, 1990 ; adjective.

Diagnosis. Males of S. subcampanacea sp. n. differ from other Sinopoda species in having a short, slender embolus, except for S. campanacea ( Wang, 1990: figs 1–5) and S. serrata ( Wang, 1990: figs 17–19). From these species it can be distinguished by the following characters: (1) vRTA with slender distal tip (flat distal tip in S. campancea and absent in S. serrata ); (2) dRTA slender, dorsally bending (thick and ventrally bending in S. campancea and S. serrata ). The female of S. subcampanacea sp. n. is similar to S. campanacea ( Wang, 1990: figs 1–5) in having the narrow lateral lobes and anteriorly situated lobal septum, but can be distinguished by the following combination of characters: (1) the U-shaped anterior margins of the lateral lobes (vs. C-shape in S. campanacea ); (2) short glandular appendages (vs. long in S. campanacea ).

Description. Male (holotype): total length 7.20; prosoma 3.38 long, 3.54 wide; opisthosoma 3.82 long, 2.69 wide. Eye diameters and interdistances: AME 0.18, ALE 0.24, PME 0.18, PLE 0.28; AME–AME 0.14, AME–ALE 0.05, PME–PME 0.33, PME–PLE 0.23. MOA 0.52 long, anterior width 0.50, posterior width 0.69. Endite 0.88 long, 0.60 wide. Leg measurements (mm): I 11.17 (3.12, 1.20, 2.19, 3.36, 1.30), II 13.59 (3.21, 1.52, 3.99, 3.31, 1.56), III 10.00 (3.13, 0.81, 2.24, 2.90, 0.92), IV 10.97 (2.69, 1.22, 2.51, 3.34, 1.21). Leg formula: 2143. Spination: Palp: 131, 101, 2021; Fe: I–IV 323; Pa: I–IV 101; Ti: I–II 1318, III–IV 2328; Mt: I–II 1014, III–IV 2026. Chelicerae with three promarginal and four retromarginal teeth, and with ca. 20 denticles between them.

Coloration in ethanol ( Figs 10, 11 ): carapace dorsally pale yellowish with two distinct dark lateral bands, posterior part distinctly serrated. Radial furrows and dorsal carapace margins with black hairs. Fovea and radial furrows distinctly marked. Labium pale yellowish, distal parts of labium brighter. Endite longer than wide. Sternum pale yellowish, with black hairs. Legs pale yellowish with dark spots. Dorsal opisthosoma brown, covered by black hairs laterally. Ventral opisthosoma yellowish brown with dark brown spots.

Palp ( Figs 16–19 ) as in diagnosis. Embolus arising from tegulum at 8 to 9-o’clock-position (left palp in ventral view), broad at base. Spermophor bent in the middle of the tegulum. dRTA digitiform, dorso-distad in retrolateral view, vRTA broad in retrolateral, acute in ventral view.

Female (paratype): total length 8.54; prosoma 4.15 long, 3.60 wide; opisthosoma 4.39 long, 3.03 wide. Darker in body color than male. Shape, color and markings of body as in male ( Figs 10–13 ). Endite 1.05 long, 0.60 wide. Eye diameters and interdistances: AME 0.14, ALE 0.27, PME 0.21, PLE 0.24; AME–AME 0.22, AME–ALE 0.11, PME–PME 0.31, PME–PLE 0.38. MOA 0.45 long, anterior width 0.51, posterior width 0.79. Leg measurements: I 10.48 (3.32, 1.63, 1.90, 2.65, 0.98), II 11.26 (3.31, 1.44, 2.90, 2.66, 0.95), III 9.18 (3.13, 1.35, 1.79, 2.01, 0.90), IV 9.39 (3.46, 1.32, 2.04, 1.86, 0.71). Leg formula: 2143. Spination: Palp: 131, 101, 2021; Fe: I–IV 323; Pa: I–IV 101; Ti: I–II 1318, III–IV 2328; Mt: I–II 1014, III–IV 2026. Chelicerae with three promarginal and four retromarginal teeth, and with ca. 18 denticles between them.

Epigyne with anterior margins of lateral lobes almost parallel to posterior margins; glandular appendages short, bent, posterior-laterad. Posterior part of the internal duct system as wide as the anterior part. Longitudinal fusion bubbles situated between the fertilization ducts ( Figs 14, 15 ).

Distribution. Known only from the type locality ( Fig. 20 ).

Figures

FIGURE 20. Records of the new Pseudopoda and Sinopoda species in Gansu Province, China.

FIGURES 10–13. Sinopoda subcampanacea sp. n. 10–11 Male habitus (10 dorsal, 11 ventral); 12–13 Female habitus (C dorsal, D ventral). Scale bars: 3 mm.

FIGURES 14–19. Sinopoda subcampanacea sp. n. 14–15 Epigyne/vulva (14 ventral, 15 dorsal); 16 Bulb, ventral; 17–19 Left male palp (17 prolateral, 18 ventral, 19 retrolateral). Scale bars: 0.5 mm. C=conductor; E=embolus; EA=embolic apophysis; FD=fertilization duct; GA=glandular appendages; LL=lateral lobes; LS=lobal septum; MS=membranous sac; PP=posterior part of spermathecae; RTA=retrolateral tibial apophysis; dRTA=dorsal part of RTA; vRTA=ventral part of RTA; SP=spermophor; ST=subtegulum; T=tegulum.