Chinattus crewsae, Wang & Li & Pham, 2023

Wang, Cheng, Li, Shuqiang & Pham, Dinh-Sac, 2023, Thirteen species of jumping spiders from northern Vietnam (Araneae, Salticidae), ZooKeys 1148, pp. 119-165 : 119

Chinattus crewsae sp. nov.

Figs 1 , 2

Type material.

Holotype ♂ (IZCAS-Ar44157), Vietnam: Ha Giang Province: Ha Giang National Forest, 14.V.2002, D.S. Pham leg. Paratypes 12♂4♀ (IZCAS-Ar44158-44173), same data as holotype; 7♂5♀ (IZCAS-Ar44174-44185), same locality and collector, 14.VIII.2002.

Etymology.

This specific name is a patronym in honor of Sarah Crews (San Francisco, USA), a leading specialist on the taxonomy of Selenopidae worldwide; noun (name) in genitive case.

Diagnosis.

Chinattus crewsae sp. nov. resembles C. furcatus (Xie, Peng & Kim, 1993) in the general shape of copulatory organs, but it can be easily distinguished by the following: (1) the RTA is acutely narrowed medially, and curved inward at distal end in retrolateral view (Fig. 1B ), whereas it is tapered, not curved in C. furcatus ( Peng and Xie 1995: fig. 3); (2) the copulatory openings open anteriorly (Fig. 2A ), whereas they open bilaterally in C. furcatus ( Peng and Xie 1995: fig. 5); (3) the epigynal hood is square, located medially (Fig. 2A ), whereas almost triangular, located posteriorly in C. furcatus ( Peng and Xie 1995: fig. 5). The female of this new species also resembles Hasarius orientalis ( Żabka, 1985) in having similar epigyne and multifurcated retromarginal cheliceral fissidental tooth, but it can be easily distinguished by the following: (1) the copulatory openings are located anteriorly (Fig. 2A ), whereas they are located posteriorly in H. orientalis ( Żabka 1985: fig. 214); (2) the epigynal hood is located medially (Fig. 2A ), whereas it is located postero-marginally in H. orientalis ( Żabka 1985: fig. 214).

Description.

Male (Figs 1 , 2C, D, F, G ). Total length 4.76. Carapace 2.41 long 1.93 wide. Abdomen 2.17 long, 1.59 wide. Clypeus 0.12 high. Eye sizes and inter-distances: AME 0.58, ALE 0.36, PLE 0.30, AERW 1.86, PERW 1.70, EFL 1.16. Legs: I 5.14 (1.50, 1.01, 1.25, 0.88, 0.50), II 4.37 (1.33, 0.78, 0.88, 0.93, 0.45), III 5.37 (1.88, 0.83, 1.13, 1.05, 0.48), IV 4.75 (1.50, 0.63, 1.01, 1.13, 0.48). Carapace almost square, red-brown to dark brown, setose; fovea dark, longitudinal, bar-shaped. Chelicerae red-brown to dark-brown, with two promarginal teeth and one retromarginal fissidental tooth with five to eight cusps. Endites red-brown, paler the inner margins, broadened distally. Labium colored as endites. Sternum longer than wide, almost shield-shaped. Legs yellow to dark brown. Abdomen oval, dorsum brown, with arc-shaped white stripe of setae at anterior sub-margin, followed by a pair of muscle depressions, and three triangular brown patches encircled by discontinuous, yellow patches; venter brown, with longitudinal dotted lines. Palp (Fig. 1A-D ): tibia slightly longer than wide; RTA acutely narrowed, and strongly sclerotized at distal half, slightly curved inward at distal end, with broadened medio-proximal portion bearing dense processes; cymbium setose; bulb elongated, swollen, with blunt posterior lobe extending posteriorly; embolus originates from antero-prolateral portion of bulb, twisted, extending anteriorly, with rather pointed tip.

Female (Fig. 2A, B, E ). Total length 5.78. Carapace 2.75 long 2.13 wide. Abdomen 2.81 long, 2.03 wide. Clypeus 0.14 high. Eye sizes and inter-distances: AME 0.59, ALE 0.37, PLE 0.31, AERW 2.01, PERW 1.81, EFL 1.25. Legs: I 4.65 (1.42, 0.93, 1.10, 0.70, 0.50), II 4.36 (1.38, 0.83, 0.95, 0.70, 0.50), III 5.88 (2.01, 0.83, 1.43, 1.13, 0.48), IV 5.18 (1.60, 0.68, 1.15, 1.25, 0.50). Habitus (Fig. 2E ) similar to that of male except paler, with one retromarginal cheliceral fissidental tooth with six cusps. Epigyne (Fig. 2A, B ): wider than long, with sub-square central hood, and pair of anterolateral oval atria; copulatory openings beneath the posterior-most of atrial margins; copulatory ducts twisted, with proximal, short accessory glands; spermathecae indistinct; fertilization ducts lamellar, extending transversely.

Distribution.

Known only from the type locality in Ha Giang Province, Vietnam.

Figures

Figure 1. Male palp of Chinattus crewsae sp. nov., holotype A prolateral B retrolateral C ventral D dorsal. Scale bars: 0.1 mm. Abbreviations: E - embolus; PL - posterior lobe; RTA - retrolateral tibial apophysis; SD - sperm duct.

Figure 2. Chinattus crewsae sp. nov., male holotype and female paratype A epigyne, ventral B vulva, dorsal C holotype habitus, dorsal D ditto, ventral E female paratype habitus, dorsal F holotype carapace, frontal G holotype chelicera, posterior. Scale bars: 0.1 mm (A, B, G); 0.5 mm (C-F). Abbreviations: AG - accessory gland; At - atrium; CD - copulatory duct; FD - fertilization duct; H - epigynal hood; S - spermatheca.