Nungia tangi, 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

Nungia tangi sp. nov.

Figs 10 , 11

Type material.

Holotype ♂ (TRU-JS 0634), China: Hainan: Ledong County, Jianfeng Village, Jianfengling National Nature Reserve, Yulingu (18°44.96'N, 108°55.32'E, ca. 650 m), 13.iv.2020, C. Wang & Y.F. Yang leg. Paratype: 1♀ (TRU-JS 0635), same data as holotype.

Etymology.

The specific name is a patronym of Dr. Guo Tang, who conducted important research on the taxonomy of the crab spiders of Hainan Island; noun (name) in genitive case.

Diagnosis.

Nungia tangi sp. nov. resembles N. epigynalis Żabka, 1985 known from China, Vietnam, and Japan in the general shape of copulatory organs, but it can be easily distinguished by the following characters: (1) the presence of DTA (Fig. 10B, D ), whereas absent in N. epigynalis ( Peng 2020: fig. 184f); (2) the RTA is directed upward in retrolateral view (Fig. 10B ), whereas it is curved retrolaterally in N. epigynalis ( Peng 2020: fig. 184f); (3) the spermathecae are eggplant-shaped (Fig. 11B ), whereas they are oval in N. epigynalis ( Peng 2020: fig. 184 i, j).

Description.

Male (Figs 10 , 11C-E, G-I ). Total length 4.63. Carapace 1.83 long, 1.33 wide. Abdomen 2.63 long, 1.04 wide. Eye sizes and inter-distances: AME 0.41, ALE 0.20, PLE 0.20, AERW 1.21, PERW 1.29, EFL 0.83. Leg measurements: I 3.92 (1.13, 0.78, 0.88, 0.63, 0.50), II 2.58 (0.78, 0.50, 0.60, 0.40, 0.30), III 2.43 (0.75, 0.40, 0.45, 0.53, 0.30), IV 3.25 (1.05, 0.50, 0.75, 0.65, 0.30). Carapace red-brown, with an irregular dark patch in eye field and narrow, orange central stripe posteromedially, covered with sparse, white setae. Fovea punctiform. Chelicerae dark yellow, with two promarginal teeth and one retromarginal tooth. Endites colored as chelicerae, longer than wide, slightly widened distally, with dense setae on inner margins. Labium sub-linguiform, paler terminally. Sternum elongate-oval,> 1.5 × longer than wide. Legs I robust, with slightly enlarged femora and tibiae, and bearing dense, leaf-like scales ventrally on patellae and tibiae; other legs yellow to brown. Abdomen elongated, dorsum brown to dark brown, with the transverse, undulate streak at posterior 1/3, partly covered by a scutum anteromedially; venter pale to brown, with lateral, dotted lines. Palp (Fig. 10A-D ): tibia short, with tapered RTA strongly sclerotized at distal 1/3, and blunt apically, and sub-triangular DTA; bulb swollen; embolus straight, strongly sclerotized, originates from antero-prolateral edge of bulb, extending antero-retrolaterally, with blunt apex.

Female (Fig. 11A, B, F ). Total length 5.75. Carapace 2.04 long, 1.51 wide. Abdomen 3.23 long, 1.45 wide. Eye sizes and inter-distances: AME 0.43, ALE 0.22, PLE 0.22, AERW 1.30, PERW 1.43, EFL 0.89. Leg measurements: I 3.02 (0.78, 0.65, 0.78, 0.43, 0.38), II missing, III 2.65 (0.75, 0.45, 0.50, 0.65, 0.30), IV 3.66 (1.13, 0.63, 0.90, 0.70, 0.30). Habitus (Fig. 11F ) similar to that of male except without dorsal abdominal scutum. Epigyne (Fig. 11A, B ): almost as long as wide, with arc-shaped basal plate; copulatory openings almost round, anteriorly located, separated from each other by ~ 1/2 width of basal plate; copulatory ducts very short, with lamellar accessory glands; spermathecae eggplant-shaped, separated from each other by 1/3 their width; fertilization ducts lamellar, broad, extending anterolaterally.

Distribution.

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

Comments.

The species is placed into Nungia due to its general resemblance to the N. epigynalis Żabka, 1985. However, it also possesses some characters, such as the presence of long, dense, leaf-like scales ventrally on the patellae and tibiae I in both sexes, having two tibia apophyses of male palp and elongated spermathecae which are different from the latter. And so, its generic position may need further confirmation.

Figures

Figure 10. Male palp of Nungia tangi sp. nov., holotype A prolateral B retrolateral C ventral D dorsal. Scale bars: 0.1 mm. Abbreviations: DTA - dorsal tibial apophysis; E - embolus; RTA - retrolateral tibial apophysis; SD - sperm duct.

Figure 11. Nungia tangi 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 chelicera, posterior I holotype leg I, prolateral. Scale bars: 0.1 mm (A, B, H); 0.2 mm (G, I); 0.5 mm (C-F). Abbreviations: AG - accessory gland; BP - basal epigynal plate; CD - copulatory duct; CO - copulatory opening; FD - fertilization duct; S - spermatheca.