Sinopoda yichangensis Zhu, Zhong & Yang, 2020

Gong, Li-Jun & Zhong, Yang, 2021, First description of the female of Sinopoda yichangensis Zhu, Zhong & Yang, 2020 (Araneae, Sparassidae), ZooKeys 1067, pp. 93-100 : 93

Sinopoda yichangensis Zhu, Zhong & Yang, 2020

Figures 1 , 2 , 3

Sinopoda yichangensis Zhu, Zhong & Yang, 2020: 9, figs 4A-C, 5A-C, 6A, B (holotype male from Qiaoliao Village of Hubei Province, deposited in College of Life Science, Hubei University LJ-202001-ZY).

Material examined.

2♂, 3♀ (HUST 0002), Hubei Province , Yichang City , Wufeng County, Qiaoliao Village; 30.37°N, 110.54°E; alt. 986 m; 27.V. 2021, Yang Zhong leg.

Diagnosis.

This species resembles Sinopoda angulata Jäger, Gao & Fei, 2002 ( Zhu et al. 2020: fig. 2A-E) by palp with an embolus distally filiform, as long as the embolic apophysis, and epigyne with lateral lobes fused without visible seam, and anterior part of the internal duct system not visible in dorsal view (Fig. 2E , see dotted line). They can be distinguished from the latter by the following characters: 1, embolus arising from tegulum at 7- to 8- o’clock position in ventral view (6- o’clock position in S. angulata ); 2, tip of embolic apophysis with blunt end (pointed in S. angulata ); 3, female epigyne with lobal septum ~ 1/3 of epigynal width (~ 1/4 in S. angulata ); 4, female vulva with internal duct system not touching (touching along median line in S. angulata ) (Fig. 2E ).

Description.

Male. See Zhu et al. (2020).

Female.

PL 6.2, PW 5.4, AW 3.5, OL 5.0, OW 3.3. Eyes and interdistances: AME 0.20, ALE 0.34, PME 0.19, PLE 0.33, AME-AME 0.25, AME-ALE 0.15, PME-PME 0.51, PME-PLE 0.62, AME-PME 0.53, ALE-PLE 0.64, CHAME 0.25, CHALE 0.33. Spination: Palp: 131, 000, 2121, 1014; Fe: I-III 323, IV 321; Pa: I-IV 101; Ti: I 2026, III-IV 2226; Mt: I-II 1014, III-IV 3036. Measurements of palp and legs: Palp 7.1 (2.4, 1.4, 1.5, -, 1.8), I 16.9 (5.0, 2.6, 4.4, 3.4, 1.5), II 19.1 (5.6, 2.7, 4.9, 4.4, 1.5), III 16.2 (4.9, 2.4, 4.0, 3.5, 1.4), IV 17.4 (5.1, 2.0, 4.6, 4.2, 1.5). Leg formula: 2-4-1-3. Cheliceral furrow with three anterior and four posterior teeth, each furrow with 23 denticles (Fig. 3B ). Copulatory organ as in diagnosis. Epigynal field wider than long, with short anterior muscle attachment bands, with one slit sensillum on each side close to the epigynal field. Glandular appendages short, extending only in anterior half of internal duct system. Internal duct system converging and strongly U-shaped. Fertilization ducts arising postero-laterally, curved. Membranous sac between fertilization ducts almost triangular (Fig. 2D, E ). Coloration in ethanol: as in male, but slightly brighter (Fig. 3E, F ).

Distribution.

Known only from the type locality.

Variation.

Male (n = 2): Total length 13.5-16.5; prosoma 6.0-7.5 long, 5.0-6.2 wide, anterior width of prosoma 2.3-3.2; opisthosoma 7.5-9.0 long, 3.5-4.5 wide. Measurements leg I: total length 34.5-36.0, Fe 8.6-9.0, Pa 3.0-3.3, Ti 9.4-9.7, Mt 10.3-10.6, Ta 3.1-3.4. Spination: legs: Mt I-II 2024. Female (n = 2): Total length 10.8-11.5; prosoma 5.5-6.5 long, 4.8-5.6 wide, anterior width of prosoma 3.0-3.8; opisthosoma 5.0-5.3 long, 2.8-4.0 wide. Measurements leg I: total length 15.6-18.0, Fe 4.8-5.3, Pa 2.4-2.8, Ti 4.3-4.7, Mt 3.0-3.6, Ta 1.3-1.6. Spination: legs: Ti I 2126, Mt I-II 2226.

Figures

Figure 1. Photos of live Sinopoda yichangensis Zhu, Zhong & Yang, 2020 A female B male.

Figure 2. Sinopoda yichangensis Zhu, Zhong & Yang, 2020 A-C left male palp (A prolateral view B ventral view C retrolateral view) D epigyne E vulva (D ventral view E dorsal view). Abbreviations: C - conductor, dRTA - dorsal retrolateral tibial apophysis, E - embolus, EA - embolic apophysis, FD - fertilization duct, GA - glandular appendage, LL - lateral lobes, LS - lobal septum, MS - membranous sac, PP - posterior part of spermathecae, SP - spermophor, ST - subtegulum, T - tegulum, vRTA - ventral retrolateral tibial apophysis. Scale bars: 0.5 mm.

Figure 3. Sinopoda yichangensis Zhu, Zhong & Yang, 2020 A, B cheliceral dentition, ventral view (A male B female) C, D male habitus (C dorsal view D ventral view) E, F female habitus (E dorsal view F ventral view). Scale bars: 0.5 mm (A, B); 2 mm (C-F).