Poecilorchestes zhengi, Wang & Li, 2021

Wang, Cheng & Li, Shuqiang, 2021, On ten species of jumping spiders from Xishuangbanna, China (Araneae, Salticidae), ZooKeys 1062, pp. 123-155 : 123

Poecilorchestes zhengi sp. nov.

Figs 14 , 15

Type material.

Holotype ♂ (IZCAS-Ar42623), China: Yunnan: Xishuangbanna, Mengla County, Menglun Town, secondary tropical seasonal moist forest (21°54.72'N, 101°16.94'E, ca. 660 m), 27.vii.2007, G. Zheng leg. Paratypes 2♀1♂ (IZCAS-Ar42624-42626), same data as holotype.

Etymology.

The species name is a patronym in honor of Prof. Guo Zheng (Shenyang, China), the collector of the new species; noun (name) in genitive case.

Diagnosis.

The male of Poecilorchestes zhengi sp. nov. resembles that of P. logunovi Prószyński & Deeleman-Reinhold, 2013 in having a square carapace bearing scales and a similar palp, but it can be easily distinguished by the visible retrolateral tibial apophysis and the thicker sperm duct with a maximum diameter almost half of bulb width in ventral view (Fig. 14B ) vs. not visible and thinner sperm duct with a maximum diameter almost one-third of bulb width in P. logunovi ( Prószyński and Deeleman-Reinhold 2013: fig. 115). The female resembles that of Stertinius ryukyuensis Suguro, 2020 in the general shape of the epigyne but differs in the following: 1) the epigyne has a central hood (Fig. 15A ) vs. a central fold in S. ryukyuensis ( Suguro 2020: fig. 15); 2) the copulatory openings are almost slit-shaped (Fig. 15A ) vs. oval in S. ryukyuensis ( Suguro 2020: fig. 15); 3) the presence of a dorsal abdominal scutum (Fig. 15E ) vs. absent in S. ryukyuensis ( Suguro 2020: fig. 2).

Description.

Male (Figs 14 , 15C, D, F, G ). Total length 1.69. Carapace 0.78 long, 0.81 wide. Abdomen 0.90 long, 0.88 wide. Clypeus 0.03 high. Eye sizes and inter-distances: AME 0.25, ALE 0.12, PLE 0.11, AERW 0.72, PERW 0.81, EFL 0.46. Legs: I 1.61 (0.58, 0.65, 0.20, 0.18), II 1.21 (0.40, 0.45, 0.18, 0.18), III 1.01 (0.38, 0.30, 0.15, 0.18), IV 1.18 (0.45, 0.40, 0.15, 0.18). Carapace square, red-brown, covered with multicolor scales, denser anteriorly and laterally. Fovea indistinct. Chelicerae yellow-red, with 2 promarginal teeth and 1 retromarginal tooth bifurcated into pointed tips. Endites colored as chelicerae. Labium and sternum red-brown. Legs I red-brown, except tarsi yellow, with inflated femora, and tibial scales; other legs red-brown with pale yellow metatarsi and tarsi. Abdomen almost round, dorsum paler than carapace, bearing scales and brown, thin setae, covered entirely by a scutum; venter pale to brown, covered with thin, brown setae.

Palp (Fig. 14A-C ): femur about 2.5 times longer than wide; tibia slightly wider than long; retrolateral tibial apophysis less than 1/3 tibial length, with broad ventral extension and blunt tip; cymbium about 1.8 times longer than wide in ventral view; bulb sub-oval; sperm duct broad, with maximum diameter almost 1/2 of bulb width; embolus originating from ~9:30 o’clock position of bulb, slightly curved, with blunt tip.

Female (Fig. 15A, B, E ). Total length 1.79. Carapace 0.82 long, 0.75 wide. Abdomen 0.85 long, 0.85 wide. Clypeus 0.03 high. Eye sizes and inter-distances: AME 0.24, ALE 0.11, PLE 0.10, AERW 0.69, PERW 0.76, EFL 0.43. Legs: I 1.23 (0.40, 0.50, 0.15, 0.18), II 1.04 (0.35, 0.38, 0.13, 0.18), III 0.96 (0.33, 0.30, 0.15, 0.18), IV 1.11 (0.43, 0.35, 0.15, 0.18). Habitus similar to that of male.

Epigyne (Fig. 15A, B ): wider than long, with bell-shaped hood medially; copulatory openings slit-shaped, lateral to epigynal hood; copulatory ducts short, about equal length to width of posterior chamber of spermathecae, connected medially to ental sides of anterior chamber of spermathecae; spermathecae divided into two sub-spherical chambers; fertilization ducts originate from apico-ental portion of posterior chamber of spermathecae.

Distribution.

Known only from the type locality in Yunnan, China.

Comments.

The species is temporarily placed into Poecilorchestes due to its general resemblance to P. logunovi Prószyński & Deeleman-Reinhold, 2013. Further data are required to confirm the placement of this species.

Figures

Figure 14. Male palp of Poecilorchestes zhengi sp. nov., holotype A prolateral B ventral C retrolateral. Scale bars: 0.1.

Figure 15. Female paratype and male holotype of Poecilorchestes zhengi sp. nov. A epigyne, ventral B vulva, dorsal C holotype habitus, dorsal D ventral E female paratype habitus, dorsal F holotype carapace, frontal G holotype left chelicera, posterior. Scale bars: 0.1 (A, B, G); 0.5 (C-F).