Indopadilla cuc, 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

Indopadilla cuc sp. nov.

Figs 13 , 14

Type material.

Holotype ♂ (IZCAS-Ar44220), Vietnam: Ninh Binh Province: Cuc Phuong National Park, Disturbed Forest (20°15.30'N, 105°42.55'E, ca. 250 m), 18.VIII.2007, D.S. Pham leg. Paratypes 1♀ (IZCAS-Ar44221), same data as holotype; 1♂ (IZCAS-Ar44222), Cuc Phuong National Park (20°21.44'N, 105°34.21'E, ca. 410 m), 2.IV.2007, same collector; 1♀ (IZCAS-Ar44223), same site and collector as holotype, 3.VI.2007; 1♀ (IZCAS-Ar44224), Cuc Phuong National Park (20°21.22'N, 105°37.03'E, ca. 440 m), 5.VI.2007, same collector; 1♀ (IZCAS-Ar44225), Cuc Phuong National Park (20°20.23'N, 105°36.23'E, ca. 390 m), 5.VII.2007, same collector; 1♂ (IZCAS-Ar44226), Cuc Phuong National Park (20°19.45'N, 105°37.30'E, ca. 270 m), 20.VII.2008, S. Li leg.

Etymology.

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

Diagnosis.

Indopadilla cuc sp. nov. closely resembles I. annamita (Simon, 1903) in the habitus and copulatory organs, but it can be easily distinguished by the following: (1) the embolus is sheet-shaped and without an accompanying membranous division (Fig. 13A ), whereas the embolus is spine-shaped and accompanied by a membranous division in I. annamita ( Żabka 1988: fig. 46); (2) the RTA is tapered and <1/3 the tibial length in retrolateral view (Fig. 13B ), whereas the RTA is broadened anteromedially and> 1/2 the tibial length in I. annamita ( Żabka 1988: fig. 47); (3) the epigyne has a posterior, half-round hood ~ 4/5 of the spermathecal width (Fig. 14A ), whereas the epigyne has a broad hood> 2 × the spermathecal width in I. annamita ( Żabka 1988: fig. 50).

Description.

Male (Figs 13 , 14C, D, F, G ). Total length 6.15. Carapace 2.68 long 2.18 wide. Abdomen 3.42 long, 1.38 wide. Clypeus 0.09 high. Eye sizes and inter-distances: AME 0.71, ALE 0.34, PLE 0.32, AERW 1.88, PERW 1.85, EFL 1.26. Legs: I 7.96 (2.33, 1.25, 2.13, 1.55, 0.70), II 5.15 (1.60, 0.88, 1.18, 1.01, 0.48), III 4.78 (1.50, 0.75, 0.88, 1.15, 0.50), IV 5.88 (1.80, 0.75, 1.30, 1.53, 0.50). Carapace red-brown, with pair of dark spots medio-posteriorly on eye field, and fan-shaped yellow area anteromedially on thorax, covered with brown, thin setae; fovea red-brown, longitudinal, linear. Chelicerae yellow, with four promarginal and seven retromarginal teeth. Endites longer than wide, broadened distally. Labium darker than endites. Sternum ~ 1.5 × longer than wide. Legs pale to brown, with dense setae ventrally on patellae I and tibiae I, three and two pairs of ventral spines on tibiae I and metatarsi I, respectively. Abdomen elongated, dorsum brown, with two pairs of muscle depressions anteromedially, and followed by four pale inverted V-shaped stripes; venter pale, with pair of longitudinal, dotted lines medially. Palp (Fig. 13A-C ): tibia slightly longer than wide, with strongly sclerotized, tapered retrolateral apophysis ~ 1/3 tibial length, with pointed tip almost directed anteriorly in retrolateral view; cymbium longer than wide; bulb swollen medio-posteriorly, with blunt posterior lobe extending postero-retrolaterally; embolus broad, flat, originates from antero-prolateral portion of bulb, forming semi-circular notch at distal margin.

Female (Fig. 14A, B, E ). Total length 6.32. Carapace 2.61 long 2.07 wide. Abdomen 3.75 long, 1.46 wide. Clypeus 0.09 high. Eye sizes and inter-distances: AME 0.71, ALE 0.33, PLE 0.32, AERW 1.88, PERW 1.82, EFL 1.25. Legs: I 5.43 (1.65, 1.03, 1.30, 0.95, 0.50), II 4.41 (1.30, 0.80, 1.05, 0.78, 0.48), III 3.99 (1.18, 0.68, 0.75, 0.90, 0.48), IV 5.28 (1.53, 0.75, 1.20, 1.30, 0.50). Habitus (Fig. 14E ) similar to that of male except with darker carapace. Epigyne (Fig. 14A, B ): slightly wider than long, with posterior, half-round hood close to epigastric furrow; copulatory openings elongated, slit-shaped, posterolaterally located; copulatory ducts strongly curved, with transversely extending accessory glands; spermathecae almost round, anteriorly located, partly overlapping; fertilization ducts originate from inner sides of posterior sub-margins of spermathecae, extending transversely.

Distribution.

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

Figures

Figure 13. Male palp of Indopadilla cuc sp. nov., holotype A ventral B retrolateral C dorsal. Scale bars: 0.1 mm. Abbreviations: E - embolus; PL - posterior lobe; RTA - retrolateral tibial apophysis; SD - sperm duct.

Figure 14. Indopadilla cuc 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); 1.0 mm (C-F). Abbreviations: AG - accessory gland; CD - copulatory duct; CO - copulatory opening; FD - fertilization duct; H - epigynal hood; S - spermatheca.