Stertinius donglinsiensis Wang, Mi & Peng, 2023

Wang, Cheng, Mi, Xiao-Qi, Wang, Wei-Hang, Gan, Jia-Hui, Irfan, Muhammad, Zhong, Yang & Peng, Xian-Jin, 2023, Notes on twenty-nine species of jumping spiders from South China (Araneae: Salticidae), European Journal of Taxonomy 902, pp. 1-91 : 65-68

Stertinius donglinsiensis Wang, Mi & Peng sp. nov.

urn:lsid:zoobank.org:act:F014DFFD-44F1-4354-B68F-C8BDAE7E225E

Figs 42–43 , 61

Diagnosis

Stertinius donglinsiensis sp. nov. can be distinguished from any congeners by having a swollen bulb, dorsally incrassated male palpal tibia, and a longitudinally extended anterior chamber of spermatheca, which is more than two times as long as the posterior chamber ( Figs 42 , 43A–B ), whereas flat bulb, not incrassated male palpal tibia, and a smaller anterior chamber of spermatheca less than two times as long as the posterior chamber in other congeners ( Metzner 2023).

Etymology

The species name is derived from the name of the type locality, Donglinsi Park; adjective.

Type material

Holotype

CHINA • ♂; Guizhou, Guiyang City, Guanshanhu District, Donglinsi Park ; 26°39.60′ N, 106°38.00′ E; 1297 m a.s.l.; 10 May 2018; C. Wang leg.; TRU-JS 0511 .

Paratypes

CHINA • 1 ♀; same collection data as for holotype; TRU-JS 0512 • 5 ♀♀, 1 ♂; same collection data as for preceding; 3 May 2018; TRU-JS 0513–0518 • 4 ♀♀, 4 ♂♂; same collection data as for preceding; 18 May 2018; TRU-JS 0519–0526 .

Description

Male (holotype)

MEASUREMENTS. Total length 2.24. Carapace 1.06 long, 1.02 wide. Abdomen 1.31 long, 1.01 wide. Eye sizes and inter-distances: AME 0.27, ALE 0.14, PLE 0.12, AERW 0.80, PERW 0.93, EFL 0.60. Legs: I 2.47 (0.73, 0.50, 0.58, 0.37, 0.29), II 1.86 (0.59, 0.33, 0.40, 0.27, 0.27), III 1.72 (0.51, 0.28, 0.35, 0.29, 0.29), IV 2.08 (0.71, 0.33, 0.43, 0.34, 0.27).

HABITUS. Carapace red-brown, almost square, covered with dense yellow and white thin setae, with pair of indistinct dark patches medially on eye field ( Fig. 43C, F ). Chelicerae yellow-red, with two retromarginal teeth and one pillar-shaped, bifurcated retromarginal tooth ( Fig. 43G ). Legs I with slightly inflated femora and tibiae, covered with brown long setae ventrally on tibiae ( Fig. 43H ). Abdomen oval, dorsum lustrous, with irregular median dark patch and lateral yellow stripes, covered entirely by big scutum and sparse white scale-like setae; venter dark brown ( Fig. 43C–D ).

PALP. Tibia incrassated dorsally, with short, curved retrolateral apophysis blunt apically; cymbium longer than wide, with lamellar, sub-triangular baso-retrolateral apophysis; bulb swollen, with sperm duct extended along margin; embolus short, slightly curved, originates from apical edge of bulb and tapered to pointed tip ( Fig. 42 ).

Female (paratype, TRU-JS 0512)

MEASUREMENTS. Total length 2.30. Carapace 0.96 long, 0.92 wide. Abdomen 1.36 long, 0.94 wide. Eye sizes and inter-distances: AME 0.26, ALE 0.13, PLE 0.11, AERW 0.82, PERW 0.98, EFL 0.57. Legs: I 1.75 (0.51, 0.33, 0.43, 0.24, 0.24), II 1.43 (0.44, 0.25, 0.30, 0.20, 0.24), III 1.38 (0.41, 0.23, 0.28, 0.22, 0.24), IV 1.86 (0.56, 0.30, 0.40, 0.33, 0.27).

HABITUS. Similar to that of male except paler in color and without dorsal abdominal scutum ( Fig. 43E ).

EPIGYNE. With central triangular hood; copulatory openings small, anterolaterally located, opened downward; copulatory ducts reduced; spermathecae divided into two chambers, anterior chamber elongated, longitudinally extended, posterior chamber sub-spherical; fertilization ducts originate from inner sides of anterior edges of posterior chamber of spermathecae ( Fig. 43A–B ).

Distribution

China (Guizhou) ( Fig. 61 ).

Figures

Fig. 42. Male palp of Stertinius donglinsiensis Wang, Mi & Peng sp. nov., holotype (TRU-JS 0511). A. Prolateral view. B. Ventral view. C. Retrolateral view. Abbreviations: see Material and methods. Scale bars = 0.1 mm.

Fig. 43. Stertinius donglinsiensis Wang, Mi & Peng sp. nov. A–B, E. Paratype, ♀ (TRU-JS 0512). C–D, F–H. Holotype, ♂ (TRU-JS 0511). A. Epigyne, ventral view. B. Vulva, dorsal view. C–E. Habitus. C. Dorsal view. D. Ventral view. E. Dorsal view. F. Carapace, frontal view. G. Chelicera, anterior view. H. Leg I, prolateral view. Abbreviations: see Material and methods. Scale bars: A–B, G = 0.1 mm; C–F, H = 0.5 mm.

Fig. 61. Distributional records of Phintella jiugongensis Wang, Mi & Peng sp. nov., Stertinius donglinsiensis Wang, Mi & Peng sp. nov.,S. logunovi Wang, Mi & Peng sp. nov., Synagelides fanjingensis Wang, Mi & Peng sp. nov. and Thyene xingrenensis Wang, Mi & Peng sp. nov.