Arctosa springiosa Yin, Wang, Xie & Peng, 1993

Omelko, M. M. & Marusik, Y. M., 2022, First data on Arctosa wolf spiders (Araneae: Lycosidae) from Laos with description of a new species, Raffles Bulletin of Zoology 70, pp. 397-406 : 403-406

Arctosa springiosa Yin, Wang, Xie & Peng, 1993

( Figs. 6 , 13, 14 , 22–25 , 29, 30 , 37 )

A. springiosa: Wang et al., 2021: 25 , figs. 13A–H, 14A–E, 15A–D, male and female.

For the complete list of taxonomic references see WSC (2022).

Material examined. 1 male ( FEFU), LAOS, Vientiane Prov., env. of Nam-Lik Eco-Village , 18°36′53.18″N 102°24′31.87″E, hand picking at lake shore, coll. M.M. Omelko, 17–22 May 2016 .

Redescription. Male ( Fig. 6 ). Total length 5.47. Carapace 2.86 long, 2.27 wide. Abdomen 2.60 long, 1.61 wide. Carapace dark brown, somewhat lighter in middle part, without submarginal bands. Eye region black. Radial furrows indistinct. Eye sizes and interdistances: AME 0.13, ALE 0.10, PME 0.24, PLE 0.18; AME–AME 0.06, AME–ALE 0.03, PME–PME 0.13, PME–PLE 0.21. Clypeus height 0.10. Number of cheliceral teeth see in Table 7. Labium brown, with yellow anterior edge, longer than wide. Endites yellowish with brown base, longer than wide. Sternum brown, without pattern, with sparse brown setae.

Femora I–II black, III–IV black with yellow base; patellae light brown with blackish lateral sides; tibiae and metatarsi light brown with blackish semi-rings, tarsi light brown. Length of leg segments as in Table 6. Spination of legs I and II as in Table 8.

Abdomen oval, dorsally brown, with light brown lanceolate cardiac mark and yellow spots close to it in anterior half, and with brown irregular markings in posterior half part. Ventral side of abdomen light brown, spinnerets yellow. Lateral sides greyish.

Palp ( Figs. 13, 14 , 22–25 , 29, 30 ). Tibia 1.72 times longer than wide (in ventral view), 1.15 times longer than bulb. Cymbium with 2–3 spines apically. Subtegulum (St) located on prolateral side of bulbus. Tegular apophysis (Tg) with four arms, three anterior (Aa) and one retrolateral (Ra); retrolateral arm with long large tip and deep groove ( Fig. 24 ), first anterior arm (Aa1) large, rounded, second (Aa2) ridge-like, third arm (Aa3) small with pointed tip ( Figs. 22–24 ). Tegular apophysis (Tg) with several large teeth (Tt) posteriorly ( Figs. 23, 24 ). Embolus (Em) short, very wide, with large, pointed projection (Ep) near its tip ( Figs. 29, 30 ). Terminal apophysis (Ta) long, straight, with significantly widened tip. Conductor (Co) wide, semi-transparent, membranous.

Notes. Males of A. springiosa have significantly widened tip of terminal apophysis, embolus with large projection.

Distribution. China (Chongqing, Fujian, Hainan, Hunan, Yunnan) and Laos ( Fig. 37 ).

Figures

Figs. 1–6. General appearance of Arctosa delaportei, new species (1), A. depectinata (2, 3), A. kiangsiensis (4, 5), and A. springiosa (6). 1, 2, 4, 6, male; 3, 5, female. Scale = 1 mm.

Figs. 7–14. Male palps of Arctosa delaportei, new species (7, 8), A. depectinata (9, 10), A. kiangsiensis (11, 12), and A. springiosa (13, 14). 7, 9, 11, 13, ventral; 8, 10, 12, 14, retrolateral. Scale = 0.2 mm. Abbreviations: Pa – posterior arm, Ra – retrolateral arm.

Figs. 15–25. Bulbs of Arctosa delaportei, new species (15–17), A. kiangsiensis (18–21), and A. springiosa (22–25). 15, 18, 22, ventral; 16, 21, 25, anterior; 17, 20, 24, retrolateral; 19, 23, prolateral-anterior. Scale = 0.1 mm. Abbreviations: Aa1–3 – anterior arms 1–3, Ag – arm groove, Co – conductor, Ra – retrolateral arm, Sd – sperm duct, St – subtegulum, Ta – terminal apophysis, Te – tegulum, Tg – tegular apophysis, Tt – tegular apophysis teeth.

Figs. 26–30. Embolic divisions of Arctosa delaportei, new species (26), A. kiangsiensis (27, 28), and A. springiosa (29, 30). 26, 28, 30, anterior; 27, 29, ventral. Scale = 0.1 mm. Abbreviations: Em – embolus, Ep – embolus projection, Ta – terminal apophysis.

Fig. 37. Distribution records of Arctosa spp.: A. delaportei, new species (1), A. depectinata (2), A. kiangsiensis (3), and A. springiosa (4). New localities in Laos are outlined by red circles.