Sinopoda yanjin 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 yanjin Wang & Li sp. nov. Figs 6A, B , 9G, H , 10

Material examined.

Holotype ♀ (IZCAS-Ar41610), China, Yunnan Province, Zhaotong City, Yanjin County, Doushaguan Town, near Xiangshui Cave, unnamed cave; 28.0381°N, 104.07986°E; 774 m; 15 March 2015; Yunchun Li & Jinchen Liu leg. Paratypes 4 ♀ (IZCAS-Ar41611 to IZCAS-Ar41614); China, Yunnan Province, Zhaotong City, Yanjin County, Doushaguan Town, Wuchidao Scenic Area; 28.0398°N, 104.1150°E; 548 m; 19 Sept. 2020; Ziyi Wang leg.

Diagnosis.

This new species can be separated from other Sinopoda species by the unique arrow-shaped lobal septum; the internal duct system is conspicuously swollen and broad; the width of the glandular appendages is equal to the width of medial part of the internal ducts (Fig. 6A, B ).

Description.

Female (holotype, IZCAS-Ar41610) Measurements: PL 8.71, PW 8.52; AW 4.87; OL 10.83, OW 7.24. Eyes: AME 0.34, PME 0.4, ALE 0.5, PLE 0.48, AME-AME 0.3, AME-ALE 0.36, PME-PME 0.48, PME-PLE 0.72, AME-PME 0.58, ALE-PLE 0.64, CHAME 0.2, CHALE 0.4. Palp: 12.16 (3.46, 1.85, 2.62, -, 4.23). Legs: I 34.72 (9.67, 3.97, 9.42, 8.46, 3.20); II 37.21 (11.08, 4.23, 10.06, 8.90, 2.94); III 31.59 (9.23, 3.78, 8.78, 6.98, 2.82); IV 34.84 (9.99, 3.71, 8.52, 9.16, 3.46). Leg formula: II-IV-I-III. Spination: palp: 131 101 2120 2030. Legs: Fe I-III 323, IV 333, Pa I-IV 101, Ti I-IV 2224, Mt I-III 2024, IV 3034. Chelicerae: Furrow with three anterior teeth, four posterior teeth, and 16 denticles.

Copulatory organ: as in diagnosis. Epigynal field wider than long, with one long anterior band partly integrated into the field and one slit sensillum on each side, close to the field. The lobal septum is not fused with epigynal field and has a distinct indentation medially. Lateral lobes fused, with median indentation. The anterior part of the internal ducts is wider than the posterior part. The glandular appendages are blunt and wide, extending posteriorly to the posterior half of the internal duct system. The width of the glandular appendages is equal to the width of medial part of the internal ducts. Lateral furrow partly fused, inconspicuous. The posterior part of internal duct system bulging slightly laterally, fertilization ducts arising posteriorly from the posterior part of the internal duct system. Unexpanded membranous sac between fertilization ducts (Fig. 6A, B ).

Coloration in ethanol: brown. Prosoma: dorsally reddish brown with distinct radial furrow and fovea, sparsely covered with dark hairs. Labium and gnathocoxae deep reddish brown, with dark margin. Sternum bright yellowish brown, with reddish brown margin. Legs: khaki, with distal parts darker, covered with dark hairs. Chelicerae dark reddish brown. Opisthosoma: dorsally and ventrally reddish, slightly brownish, with an irregular pattern; ventrally with two longitudinal red lines between epigastric furrow and spinnerets. Spinnerets khaki (Fig. 9G, H ).

Male: unknown.

Etymology.

The specific name is taken from the type locality, Yanjin County; noun in apposition.

Distribution.

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

Figures

Figure 6. Sinopoda yanjin sp. nov., holotype female from Yanjin County A epigyne B vulva. Abbreviations: AB anterior bands, FD fertilization ducts, GA glandular appendages, LL lateral lobes, LS lobal septum, PP posterior part of internal duct system, SS slit sensillum. 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).