Eupoa ninhbinh, 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

Eupoa ninhbinh sp. nov.

Figs 9 , 10

Type material.

Holotype ♂ (IZCAS-Ar44207), Vietnam: Ninh Binh Province: Cuc Phuong National Park, 1-30.XII.2007, D.S. Pham leg. Paratype 1♂ (IZCAS-Ar44208), Cuc Phuong National Park, 1-30.VII.2007, D.S. Pham leg.

Etymology.

The species is named after the type locality; noun in apposition.

Diagnosis.

Eupoa ninhbinh sp. nov. can be easily distinguished from other congeners by the presence of a large, baso-retrolateral femoral spine on the male palp (Fig. 9B ), which is absent in all others ( Metzner 2023).

Description.

Male (Figs 9 , 10 ). Total length 2.01. Carapace 0.97 long 0.92 wide. Abdomen 0.99 long, 0.67 wide. Clypeus 0.07 high. Eye sizes and inter-distances: AME 0.28, ALE 0.19, PLE 0.16, AERW 0.95, PERW 0.80, EFL 0.55. Legs: I 1.72 (0.53, 0.28, 0.40, 0.33, 0.18), II 1.42 (0.43, 0.25, 0.28, 0.28, 0.18), III 1.47 (0.43, 0.23, 0.28, 0.35, 0.18), IV 2.04 (0.68, 0.28, 0.48, 0.40, 0.20). Carapace yellow to dark brown, with indistinct patch medially on eye field, and tapered, central, longitudinal, yellow patch extending across thorax; fovea indistinct. Chelicerae pale, with one or two promarginal and five retromarginal teeth. Endites, labium, sternum colored as chelicerae. Legs pale to green-brown, with one and three pairs of ventral spines on tibiae I and metatarsi I, respectively. Abdomen elongated, dorsum dark brown, with longitudinal, central stripe anteriorly, three pairs of yellow spots laterally, and quadrangular yellow patch posteriorly, covered entirely by scutum; venter pale. Palp (Fig. 9A-D ): femur enlarged, with apically pointed baso-retrolateral spine more than half its length; patella sclerotized, with flat, broad retrolateral apophysis bearing sub-trapeziform division at base of posterior margin, and spine-shaped inner division; tibia short, with flat retrolateral apophysis and short, tapered dorsal apophysis with slightly pointed tip; bulb swollen, almost oval; MA slender, membranous at base, curved medially, forming hook at distal end; TA well-developed, irregularly-shaped; embolus slender, flagelliform.

Female. Unknown.

Distribution.

Known only from the type locality in Ninh Binh Province, Vietnam.

Comments.

The species is only known from the male, so there is a possibility that it is conspecific with one of two described species ( Eupoa daklak Logunov & Marusik, 2014 and E. hainanensis Peng & Kim, 1997) that are also known only from females. However, E. ninhbinh sp. nov. has specific habitus markings (see description) that differ from these two species.

Figures

Figure 9. Male palp of Eupoa ninhbinh sp. nov., holotype A prolateral B retrolateral C ventral D ventro-retrolateral. Scale bars: 0.1 mm. Abbreviations: DTA - dorsal tibial apophysis; E - embolus; MA - median apophysis; RPA - retrolateral patellar apophysis; RTA - retrolateral tibial apophysis; TA - terminal apophysis.

Figure 10. Eupoa ninhbinh sp. nov., holotype A habitus, dorsal B ditto, ventral C carapace, frontal D chelicera, posterior. Scale bars: 0.1 mm (D); 0.5 mm (A-C).