Euochin tangi, Wang & Li, 2022

Wang, Cheng & Li, Shuqiang, 2022, On eleven species of jumping spiders from Xishuangbanna, China (Araneae, Salticidae), ZooKeys 1116, pp. 85-119 : 85

Euochin tangi sp. nov.

Fig. 7

Type material.

Holotype ♀ (IZCAS-Ar42930), China: Yunnan: Xishuangbanna, Mengla County, Xiaolongha Village, Xishuangbanna Biodiversity Conservation Corridor, ravine rainforest (21°24.25'N, 101°36.32'E, ca 760 m alt.), 16.xi.2013, Q. Zhao and Z. Chen leg. Paratype 1♀ (IZCAS-Ar42931), same data as holotype.

Etymology.

The specific name is a patronym in honor of the late Guo Tang, a major collector of spiders from Xishuangbanna; noun (name) in genitive case.

Diagnosis.

The new species can be easily distinguished from other congeners by the presence of anteromedial accessory glands of the copulatory ducts, and the long (longer than spermathecae) and medially fold copulatory ducts (Fig. 7A-C ), which lack accessory glands of the copulatory ducts, and have short (shorter than spermathecae) and not fold copulatory ducts in others (see Metzner 2022).

Description.

Female (Fig. 7 ). Total length 3.82. Carapace 1.76 long, 1.41 wide. Abdomen 1.99 long, 1.48 wide. Clypeus 0.07 high. Eye sizes and inter-distances: AME 0.47, ALE 0.30, PLE 0.25, AERW 1.48, PERW 1.33, EFL 0.88. Legs: I 3.51 (1.10, 1.38, 0.63, 0.40), II 3.01 (0.95, 1.15, 0.53, 0.38), III 3.79 (1.25, 1.28, 0.83, 0.43), IV 4.07 (1.25, 1.38, 1.01, 0.43). Carapace yellow to dark brown, with pair of bilateral yellow bands and longitudinal, an irregular yellow band extending from the center of eye field to posterior margin, covered with dark and golden setae. Fovea thin, red-brown, longitudinal. Chelicerae yellow, with two promarginal teeth and one retromarginal fissidental tooth. Endites paler than chelicerae, bearing dense, dark setae at ental margins. Labium dark brown. Sternum pale to yellow, covered with brown, thin setae. Legs pale to yellow. Abdomen suboval, dorsum gray-brown to dark brown, dotted, with a longitudinal, irregular gray band anteriorly followed by two pairs of muscle depressions, then several herringbone and arched stripes, as well as several pairs of irregular gray patches laterally; venter pale yellow, with irregular dark brown patches posteromedially.

Epigyne (Fig. 7A-C ): slightly wider than long; atria oval, paired; copulatory openings slit-like, beneath the anterior margin of median septum; copulatory ducts thick, posteriorly extending at origin, then curving bilaterally before folding, obliquely extending posteriorly to connect with anterior ental portions of spermathecae, with short accessory glands anteriorly; spermathecae subspherical, touching; fertilization ducts lamellar, originating from anterolateral portions of spermathecae.

Male. Unknown.

Distribution.

Known only from the type locality in Yunnan, China.

Figures

Figure 7. Euochin tangi sp. nov., female holotype A, B epigyne, ventral C vulva, dorsal D habitus, dorsal E ditto, ventral F carapace, frontal G chelicera, posterior. Scale bars: 0.1 (A-C, G); 0.5 (D-F).