Pancorius hainanensis Song & Chai, 1991

Wang, Cheng & Li, Shuqiang, 2023, Notes on twelve species of jumping spiders from Hainan Island, China (Araneae, Salticidae), ZooKeys 1167, pp. 159-197 : 159

Pancorius hainanensis Song & Chai, 1991

Figs 15 , 16

Pancorius hainanensis Song & Chai, 1991: 20, fig. 10A, B (male holotype, examined).

Type material examined.

Holotype ♂, China: Hainan: Bawangling National Nature Reserve, xii.1989, M.S. Zhu leg.

Other material examined.

1♂ 1♀ (TRU-JS 0691-0692), China: Hainan: Qiongzhong County, Limushan National Nature Reserve , 1-5.v.2021, F.E. Li leg.

Diagnosis.

The male of Pancorius hainanensis Song & Chai, 1991 resembles that of P. wesolowskae Wang & Wang, 2020 in the general shape of palpal structure, especially the small, blunt posterior lobe, but it can be easily distinguished by the following: (1) the RTA being slightly greater than sperm duct diameter in width, and with a pointed tip in retrolateral view (Fig. 15B ), vs. more than two times greater than sperm duct diameter in width, and blunt apically in P. wesolowskae ( Wang and Wang 2020: fig. 20), (2) the embolus acutely narrowed to the pointed tip distally in ventral view (Fig. 15A ) vs. almost tapered in P. wesolowskae ( Wang and Wang 2020: fig. 19). The female of this species resembles that of P. crinitus Logunov & Jäger, 2015 in having very shallow epigynal hoods, but it can be easily distinguished by anterior chamber of spermathecae, which are wider than long (Fig. 16B ), vs. ~ 2 × longer than wide in P. crinitus ( Logunov and Jäger 2015: fig. 43).

Description.

Male (Figs 15 , 16C, D, F, G ). Total length 8.21. Carapace 3.94 long, 3.16 wide. Abdomen 4.00 long, 2.47 wide. Clypeus 0.18 high. Eye sizes and inter-distances: AME 0.91, ALE 0.58, PLE 0.52, AERW 2.95, PERW 2.63, EFL 1.84. Legs: I 9.31 (2.58, 1.70, 2.45, 1.63, 0.95), II 8.21 (2.65, 1.45, 1.88, 1.35, 0.88), III 9.18 (2.98, 1.30, 2.10, 1.80, 1.00), IV 8.16 (2.50, 1.13, 1.80, 1.85, 0.88). Carapace red-brown to dark brown, covered with white and dark setae, dense on both sides; fovea longitudinal, dark. Chelicerae red-brown, each with two promarginal teeth and one retromarginal tooth. Endites paler than chelicerae, bearing dense dark brown setae on the distal half of inner margins. Labium tapered, with pale distal end. Sternum yellow to red-brown, shield-shaped, ~ 1.5 × longer than wide. Legs yellow to dark, setose, and spiny. Abdomen elongated, dorsum dark brown and mingled with green, spotted, with longitudinal, pale band anteromedially, two pairs of median muscle depressions followed by four transverse arc-shaped pale stripes; venter dark brown, spotted laterally, with pair of longitudinal, dotted lines medially. Palp (Fig. 15A-C ). Tibia longer than wide, with strongly sclerotized RTA slightly curved inward distally and pointed apically; cymbium 1.5 × longer than wide; bulb slightly swollen, with small bean-shaped posterior lobe; embolus short, broad, and flat, slightly curved retrolaterally, with pointed tip.

Female (Fig. 16A, B, E ). Total length 8.57. Carapace 3.60 long, 2.91 wide. Abdomen 4.69 long, 3.09 wide. Clypeus 0.20 high. Eye sizes and inter-distances: AME 0.90, ALE 0.59, PLE 0.50, AERW 2.71, PERW 2.57, EFL 1.77. Legs: I 7.58 (2.20, 1.45, 1.88, 1.25, 0.80), II 6.91 (2.20, 1.30, 1.58, 1.13, 0.70), III 8.54 (2.83, 1.40, 1.75, 1.68, 0.88), IV 7.79 (2.38, 1.10, 1.80, 1.73, 0.78). Habitus (Fig. 16E ) similar to that of male except without dense setae on the carapace and with an almost T-shaped yellow area on thorax. Epigyne (Fig. 16A, B ). Wider than long, with pair of very shallow posterior hoods; copulatory openings slit-shaped, located medially; copulatory ducts very short, curved medially; spermathecae divided into two chambers, the anterior chamber oval, much smaller than the elongate, posterior chamber.

Distribution.

Known only from Hainan Island, China.

Figures

Figure 15. Male palp of Pancorius hainanensis Song & Chai, 1991 A ventral B retrolateral C dorsal. Scale bars: 0.2 mm.

Figure 16. Pancorius hainanensis Song & Chai, 1991 A epigyne, ventral B vulva, dorsal C male habitus, dorsal D ditto, ventral E female habitus, dorsal F male carapace, frontal G male chelicera, posterior. Scale bars: 0.1 mm (A, B, G); 1.0 mm (C-F).