Philates zhoui, Wang & Li, 2022

Wang, Cheng & Li, Shuqiang, 2022, A new genus and nine species of jumping spiders from Hainan Island, China (Araneae, Salticidae), ZooKeys 1118, pp. 39-72 : 39

Philates zhoui sp. nov.

Figs 15 , 16

Type material.

Holotype ♂ (IZCAS-Ar43206), China: Hainan: Baisha County, Yinggeling National Nature Reserve (19°02.93'N, 109°33.65'E, ca. 730 m), 20.viii.2010, G. Zheng leg. Paratypes 20♂17♀ (IZCAS-Ar43207-43243), same data as holotype.

Etymology.

The specific name is a patronym of Mr. Runbang Zhou, our guide in Jianfengling National Nature Reserve; noun (name) in genitive case.

Diagnosis.

Philates zhoui sp. nov. resembles that of P. grammicus Simon, 1900 known from Philippines and Indonesia in the carapace sloping steeply at the posterior sub-margin, the enlarged femora I, and the dense setae ventrally on the enlarged tibia I, but it can be easily distinguished by the following characters: (1) the RTA is longer than the tibia (Fig. 15B ), whereas it is ~ 1/2 the tibia length in P. grammicus ( Wanless 1978: fig. 10J); (2) the copulatory ducts are separated from each other proximally by their width (Fig. 16A, B ), whereas they are touching in P. grammicus ( Wanless 1978: fig. 10D, H); (3) the male carapace lacks patches of scales (Fig. 16C, D ), whereas there are patches of white scales behind the PMEs and on the slope of the thorax in P. grammicus ( Wanless 1978: fig. 10D, H). The new species is also similar to Colaxes sazailus Paul, Prajapati, Joseph & Sebastian, 2020 known from India in having very similar copulatory organs, but it can be easily distinguished by the square cephalic region, which is trapeziform in C. sazailus ( Paul et al. 2020: fig. 6, 15).

Description.

Male (Figs 15 , 16C-E, G, H ). Total length 2.51. Carapace 1.30 long, 1.04 wide. Abdomen 1.28 long, 1.02 wide. Eye sizes and inter-distances: AME 0.33, ALE 0.19, PLE 0.15, AERW 0.98, PERW 0.98, EFL 0.57. Leg measurements: I 2.26 (0.75, 0.43, 0.55, 0.33, 0.20), II 1.61 (0.53, 0.25, 0.30, 0.33, 0.20), III 1.56 (0.50, 0.23, 0.30, 0.33, 0.20), IV 1.86 (0.63, 0.25, 0.40, 0.38, 0.20). Carapace red-brown, acutely sloped at posterior sub-margin, the square cephalic region with two longitudinal white streaks of setae medially. Chelicerae with two promarginal and four retromarginal teeth. Endites colored as chelicerae, broadened distally. Labium sub-linguiform, dark brown, paler apically. Sternum yellow-brown, slightly longer than wide. Legs I robust, with enlarged femora and tibiae, and dense, long, dark setae ventrally on femora, patellae and tibiae; other legs pale yellow to dark brown. Abdomen oval, dorsum red-brown, paler at terminus, with longitudinal, irregular dark streak centrally, two pairs of muscle depressions medially, covered entirely by scutum, with dense, thin setae; venter colored as dorsum. Palp (Fig. 15A-D ): tibia slightly wider than long, with straight, tapered RTA ~ 1.5 × of its length, and blunt apically; bulb swollen, longer than wide, sperm duct sinuous retrolaterally; embolus coiled ~ 2 ×, pointed at terminus; process of embolus disc lamellar.

Female (Fig. 16A, B, F ). Total length 2.44. Carapace 1.17 long, 0.92 wide. Abdomen 1.23 long, 1.01 wide. Eye sizes and inter-distances: AME 0.31, ALE 0.16, PLE 0.15, AERW 0.87, PERW 0.87, EFL 0.51. Leg measurements: I 1.76 (0.58, 0.33, 0.40, 0.25, 0.20), II 1.41 (0.43, 0.25, 0.28, 0.25, 0.20), III 1.39 (0.43, 0.23, 0.28, 0.25, 0.20), IV 1.74 (0.58, 0.28, 0.38, 0.30, 0.20). Habitus (Fig. 16F ) similar to that of male except with pair of dark spots medially in eye field. Epigyne (Fig. 16A, B ): longer than wide; anteriorly located, oval atrium separated by broad, sub-oblong septum ~ 2 × longer than wide; copulatory openings beneath the lowest margin of atrium; copulatory ducts separated, widened proximally, with complex coils; spermathecae elongated; fertilization ducts lamellar, extending anterolaterally.

Distribution.

Only known from the type locality in Hainan Island, China.

Figures

Figure 15. Male palp of Philates zhoui sp. nov., holotype A prolateral B retrolateral, C ventral D bulb, retrolateral. Scale bars: 0.1 mm. Abbreviations: E - embolus; PED - process of embolic disc; RTA - retrolateral tibial apophysis; SD - sperm duct.

Figure 16. Philates zhoui sp. nov., male holotype and female paratype A epigyne, ventral B vulva, dorsal C holotype habitus, dorsal D ditto, lateral E ditto, ventral F female paratype habitus, dorsal G holotype carapace, frontal H holotype leg I, prolateral. Scale bars: 0.1 mm (A, B); 0.2 mm (G, H); 0.5 mm (C-F). Abbreviations: AR - atrial ridge; At - atrium; FD - fertilization duct; S - spermatheca.