Arctosa gougu Chen & Song 1999
Creators: name: Wang, Lu-Yu
name: Marusik, Yuri M.
name: Zhang, Zhi-Sheng
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Arctosa
Arctosa gougu

description: Arctosa gougu Chen & Song, 1999
Figures 4–7, 13
Arctosa gougu Chen & Song, 1999 (female holotype from the rainforest of Gougu, Menglun, Yunnan Province of China, deposited in IZCAS, not examined): 138, figs 1–3 (Ƥ).
Material examined. CHINA: 1 female, Yunnan Province, Jinghong City, Banna Wild Elephants Valley, 22°10.428ʹN, 100°51.943ʹE, alt. 782 m, 23 May 2011, Z.X. Li & G.C. Zhou leg. (SWUC); 4 males and 9 females, Jinghong City, Xishuangbanna National Forest Park, 22°1.856ʹN, 100°52.570ʹE, alt. 747 m, 24 May 2011, Z.X. Li & G.C. Zhou leg. (SWUC -33 9Ƥ; ZMMU -13)
Diagnosis. The species is similar to A. laminata (Yu & Song 1988: 236, figs 7–10), but can be distinguished by the broad embolus and conductor, the small terminal apophysis, the trifurcate median apophysis of the male palp, the wide copulatory openings, the relatively narrow stem of the septum and the big seminal receptacle of epigyne (Figs 4 A–D, 5D–G, 6A–B, 7A–F).
Description. Male (Figs 5 A, 5C). Total length 4.27. Carapace 2.41 long, 1.71 wide; Abdomen 1.84 long, 1.17 wide. Carapace yellowish brown, with light brown submarginal bands, eyes region black. Fovea vertical. Cervical groove indistinct. Radial furrows distinct. Eye sizes and interdistances: AME 0.08, ALE 0.08, PME 0.18, PLE 0.14; AME–AME 0.06, AME–ALE 0.02, PME–PME 0.16, PME–PLE 0.17. Clypeus height 0.08. Chelicerae elongate, brown, with three promarginal and three retromarginal teeth. Labium yellow brown, with dark base, longer than wide. Endites yellow brown, longer than wide. Sternum yellow and scutellate, with sparse brown hairs. Legs yellow brown, with black ring-like stripe. Leg measurements: I 5.69 (1.65, 1.97, 1.20, 0.87); II 5.19 (1.56, 1.71, 1.19, 0.73); III 4.75 (1.46, 1.32, 1.27, 0.70); IV 7.33 (2.07, 2.21, 2.03, 1.02). Leg formula: 4123. Abdomen oval. Dorsum yellowish brown, with black marking. Venter yellowish brown, with small, yellow spinnerets.
Male palp (Figs 4 A–B, 5D–E, 6A–B, 7A–F). Subtegulum located on baso-prolateral side of the bulbus. Median apophysis with three arms: claw-like anterior arm (Aa), hook-like posterior arm (Pa) and wide retrolateral arm (Ra) with abrupt tip. Embolus wide and short, with abrupt tip. Terminal apophysis wide, shorter than embolus. Conductor wide, membranous, with a rounded end. Cymbium with two spines apically.
Female (Figs 5 B–C) total length: 4.97. Carapace 2.85 long, 2.02 wide; Abdomen 2.08 long, 1.58 wide. Eye sizes and interdistances: AME 0.09, ALE 0.09, PME 0.23, PLE 0.16; AME–AME 0.07, AME–ALE 0.04, PME–PME 0.17, PME–PLE 0.18. Clypeus height 0.09. Leg measurements: I 6.52 (1.83, 2.34, 1.40, 0.95); II 6.02 (1.77, 2.02, 1.32, 0.91); III 5.68 (1.58, 1.83, 1.34, 0.93); IV 8.66 (2.35, 2.66, 2.51, 1.14). Leg formula: 4123.
Epigyne (Figs 4 C–D, 5F–G). Septum broad and rectangle, with a quite narrow stem. Copulatory openings located on the shoulders of septum. Copulatory ducts thick, long and slightly distorted. Seminal receptacles large and club-like. Fertilization ducts crescent.
Distribution. China (Yunnan) (Fig. 13).
Remark. Although the type of Arctosa gougu was not examined, it is clear from the description in Chen & Song (1999) that the specimen they described is the same as the female specimens we examined.
description: Published as part of Wang, Lu-Yu, Marusik, Yuri M. & Zhang, Zhi-Sheng, 2012, Notes on three poorly known Arctosa species from China (Araneae: Lycosidae), pp. 53-68 in Zootaxa 3404 on pages 57-61, DOI: 10.5281/zenodo.213335