Arctosa vaginalis Yu & Song, 1988

Wang, Lu-Yu, Marusik, Yuri M. & Zhang, Zhi-Sheng, 2012, Notes on three poorly known Arctosa species from China (Araneae: Lycosidae), Zootaxa 3404, pp. 53-68 : 61-65

publication ID

https://doi.org/ 10.5281/zenodo.213335

DOI

https://doi.org/10.5281/zenodo.6493887

persistent identifier

https://treatment.plazi.org/id/13680C3C-842C-9A46-29DD-FB9D42FAFE28

treatment provided by

Plazi

scientific name

Arctosa vaginalis Yu & Song, 1988
status

 

Arctosa vaginalis Yu & Song, 1988 View in CoL

Figures 8–11 View FIGURE 8 View FIGURE 9 View FIGURE 10 View FIGURE 11 , 13 View FIGURE 13

Arctosa vaginalis Yu & Song, 1988 View in CoL (female holotype from Xiaguan, Dali City, Yunnan Province of China, deposited in JLU, not examined): 239, figs 19–22 (Ƥ); Song et al. 1999: 320, figs 190E–F (Ƥ).

Materials examined. CHINA: 2 males and 7 females, Yunnan Province, Yuxi City, Eshan County, Lian River, 24°9.386ʹN, 102°21.817ʹE, alt. 1577 m, 17 May 2011, Z.X. Li & G.C. Zhou leg. ( SWUC); 1 male, Yunnan Province, Puer City, Meizi Reservoir, 22°45.249ʹN, 100°59.040ʹE, alt. 1339 m, 21 May 2011, Z.X. Li & G.C. Zhou leg. ( SWUC); 2 males and 1 female, Puer City, Simaogang, 22°29.169ʹN, 100°35.96ʹE, alt. 637m, 22 May 2011, Z.X. Li & G.C. Zhou leg. ( SWUC); 4 females, Yunnan Province, Jinghong City, Xiaomengyang Town, 22°5.736ʹN, 100°53.440ʹE, alt. 748 m, 23 May 2011, Z.X. Li & G.C. Zhou leg. ( SWUC); 1 male and 1 female, Yunnan Province, Jinghong City, Mengla County, Menglun Town, 21°55.872ʹN, 101°14.868ʹE, alt. 547 m, 25 May 2011, Z.X. Li & G.C. Zhou leg. ( SWUC -1Ƥ, ZMMU -13); 1 male, Yunnan Province, Jinghong City, Mengla County, Manhe Town, 21°30.562ʹN, 101°34.574ʹE, alt. 642 m, 27 May 2011, Z.X. Li & G.C. Zhou leg. ( SWUC); 3 males and 1 female, Mengla County, Mohan Reservoir, 21°11.228ʹN, 101°41.482ʹE, alt. 920 m, 28 May 2011, Z.X. Li & G.C. Zhou leg. ( SWUC); 1 male and 1 female, Yunnan Province, Ruili City, Jiegao Port, Qingshui River, 23°59.039ʹN, 97°52.958ʹE, alt. 762 m, 4 June 2011, Z.X. Li & G.C. Zhou leg. ( SWUC).

Diagnosis. This species is similar to A. recurva Yu & Song, 1988 ( Yu & Song 1988: 238, figs 14–18; Yin et al. 1997: 99, figs 46a–e), but can be distinguished by the broad embolus and conductor, the relatively small terminal apophysis, the complex median apophysis of male palp ( Figs 8 View FIGURE 8 A–B, 9E–F, 10A–B, 11A–E), the long stem of septum and the large seminal receptacle of epigyne ( Figs 8 View FIGURE 8 C–D, 9G–H). Males of this species differ from all other lycosids by having ‘stridulatory files’ anterio-laterally on the chelicerae ( Fig. 9 View FIGURE 9 D).

Description. Male ( Figs 9 View FIGURE 9 A, 9C–D). Total length 5.82. Carapace 3.19 long, 2.32 wide; Abdomen 2.49 long, 1.60 wide. Carapace yellowish brown, with light brown submarginal bands, eye region black. Fovea longitudinal. Cervical groove indistinct. Radial furrows distinct. Eye sizes and interdistances: AME 0.11, ALE 0.09, PME 0.26, PLE 0.22; AME–AME 0.10, AME–ALE 0.04, PME–PME 0.26, PME–PLE 0.23. Clypeus height 0.07. Chelicerae elongate, brown, with stridulatory files on retrolateral surface, two 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 7.55 (2.18, 2.67, 1.66, 1.04); II 6.70 (1.88, 2.27, 1.54, 1.01); III 6.20 (1.88, 1.81, 1.55, 0.96); IV 9.57 (2.51, 3.18, 2.67, 1.21). Leg formula: 4123. Abdomen oval. Dorsum brown, with lanceolate cardiac mark in anterior half, and with black marking. Venter yellowish brown, with small, yellowish brown, spinnerets.

Male palp ( Figs 8 View FIGURE 8 A–B, 9E–F, 10A–B, 11A–F). Subtegulum located in basal part of bulbus. Embolus relatively wide and flat, with pointed tip and distinct embolar ridge (Er in Figs 11 View FIGURE 11 A–B, D). Conductor wide and membranous. Median apophysis relatively small and narrow, with three arms (Aa, Pa and Ra). Retrolateral arm with anterior furrow (Tf). Terminal apophysis knife-like, thinner than embolus, with a deep furrow ( Fig. 11 View FIGURE 11 D). Cymbium with two spines apically.

Female ( Figs 9 View FIGURE 9 B–C) total length: 6.05. Carapace 3.32 long, 2.37 wide; Abdomen 2.84 long, 1.89 wide. Eye sizes and interdistances: AME 0.14, ALE 0.11, PME 0.28, PLE 0.24; AME–AME 0.13, AME–ALE 0.05, PME–PME 0.26, PME–PLE 0.35. Clypeus height 0.10. Leg measurements: I 7.87 (2.24, 2.67, 1.77, 1.19); II 7.19 (2.11, 2.33, 1.59, 1.16); III 6.71 (1.89, 2.08, 1.64, 1.10); IV 10.68 (2.89, 3.59, 2.89, 1.31). Leg formula: 4123. Chelicerae without stridulatory files.

Epigyne ( Figs 8 View FIGURE 8 C–D, 9G–H). Septum nearly rounded, with a wide and long stem. Copulatory openings located beneath the margins of stem of septum. Copulatory ducts thick and long. Seminal receptacles large and club-like. Fertilization ducts crescent-shaped.

Distribution. China (Yunnan, Guizhou) ( Fig. 13 View FIGURE 13 ).

Remark. Although the type of Arctosa vaginalis was not examined, it is clear from the description in Yu & Song (1988) that the specimen they described is the same as the female specimens we examined.

ZMMU

Zoological Museum, Moscow Lomonosov State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Lycosidae

Genus

Arctosa

Loc

Arctosa vaginalis Yu & Song, 1988

Wang, Lu-Yu, Marusik, Yuri M. & Zhang, Zhi-Sheng 2012
2012
Loc

Arctosa vaginalis

Yu & Song 1988
1988
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