Sinopoda yichangensis, Zhu & Zhong & Yang, 2020

Zhu, Yang, Zhong, Yang & Yang, Tingbang, 2020, One new species of the genus Sinopoda from Hubei Province, with description of the male of Sinopoda angulata (Araneae, Sparassidae), Biodiversity Data Journal 8, pp. 55377-55377 : 55377

Sinopoda yichangensis sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: Jian Chen; individualCount: 1; sex: 1 male; lifeStage: adult; preparations: in ethyl alcohol; Taxon: order: Araneae; family: Sparassdiae; genus: Sinopoda; Location: country: China; countryCode: CHN; stateProvince: Hubei Province; county: Wufeng; decimalLatitude: 30.37; decimalLongitude: 110.54; Identification: identifiedBy: Jian Chen; Event: samplingProtocol: by hand; year: 2019; month: 8; day: 22

Description

Male (Fig. 6 ). PL 6.5, PW 5.8, AW 2.7, OL 7.6, OW 4.0. Eyes: AME 0.29, ALE 0.45, PME 0.33, PLE 0.42, AME-AME 0.24, AME-ALE 0.10, PME-PME 0.51, PME-PLE 0.60, AME-PME 0.50, ALE-PLE 0.52, CH AME 0.15, CH ALE 0.20. Spination: Palp: 131, 101, 2121; Fe: I-III 323, IV 321; Pa: I-IV 000; Ti: I-III 2026, IV 2326; Mt: I-II 1014, III-IV 3036. Measurements of palp and legs: Palp 13.1 (3.7, 2.4, 2.8, -, 4.2), I 35.2 (8.8, 3.2, 9.5, 10.5, 3.2), II 37.5 (9.6, 2.9, 10.5, 11.3, 3.2), III 28.5 (8.1, 2.8, 7.4, 7.7, 2.5), IV 31.0 (8.5, 2.4, 8.1, 9.1, 2.9). Leg formula: II-I-IV-III. Cheliceral furrow with three anterior and four posterior teeth, with 31 denticles. Dorsal prosoma yellowish-brown, with distinct fovea and radial furrows. Chelicerae deep reddish-brown. Sternum reddish to yellowish-brown, with margin brown. Gnathocoxae and labium yellowish-brown, with distal parts lighter. Legs deep yellowish-brown, covered by short spines. Dorsal opisthosoma yellowish-purple, lateral field of opisthosoma with three pairs of black patches. Ventral opisthosoma deep yellowish-brown with irregular patches.

Palp as in diagnosis (Figs 4 , 5 ). Cymbium about two times longer than tibia in ventral view. Conductor arising from tegulum in 1- o’clock-position. Tegulum median part slightly wider than proximal part. Spermophore slightly curved in ventral view. RTA arising subdistally from tibia, dRTA dorsally digitiform in ventral view and about two times as long as vRTA in retrolateral view.

Female. Unknown.

Diagnosis

Males of this new species can be distinguished from all other Sinopoda species except S. angulata and S. pyramidalis ( Zhong et al. 2019: Figs 50A-C and 51A-D) in having a thin embolus, as long as embolic apophysis, and embolic apohysis distinctly wider than embolus. It can be distinguished from the other two congeners by the following combination of characters: 1) tip of embolus apohysis with blunt ends (pointed ends in S. angulata and S. pyramidalis ); 2) embolus arising from tegulum at 7- to 8- o’clock position in ventral view (6- o’clock position in S. angulata ; 8:30- to 9- o’clock position in S. pyramidalis ); 3) dRTA is straight with blunt ends in ventral view (slightly curved, with pointed ends in S. angulata ; broad, bulging in S. pyramidalis ) (Figs 1 , 4 ).

Etymology

The specific name refers to the type locality; adjective.

Distribution

Known only from the type locality (Fig. 7 ).

Figures

Figure 1. Sinopoda angulata Jaeger, Gao & Fei, 2002, left male palp, prolateral (A), ventral (B) and retrolateral (C) view. Abbreviations: C-conductor, dRTA-dorsal retrolateral tibial apophysis, E-embolus, EA-embolic apophysis, SP-spermophore, ST-subtegulum, T-tegulum, vRTA-ventral retrolateral tibial apophysis. Scale bar: 0.5 mm.

Figure 4. Sinopoda yichangensis sp. n., left male palp in prolateral (A), ventral (B) and retrolateral (C) view. Abbreviations: C-conductor, dRTA-dorsal retrolateral tibial apophysis, E-embolus, EA-embolic apophysis, SP-spermophore, ST-subtegulum, T-tegulum, vRTA-ventral retrolateral tibial apophysis. Scale bar: 0.5 mm.

Figure 5. Sinopoda yichangensis sp. n., left male palp in prolateral (A), ventral (B) and retrolateral (C) view. Scale bar ： 0.5 mm.

Figure 6. Sinopoda yichangensis sp. n., male in dorsal view (A) ventral view (B). Scale bars: 2 mm.

Figure 7. Locality records for two species of Sinopoda: 1, 2. Sinopoda angulata Jaeger, Gao & Fei, 2002; 3. Sinopoda yichangensis sp. n.