Arctosa meitanensis Yin, Wang, Xie & Peng, 1993

Trilikauskas, Laimonas A. & Azarkina, Galina N., 2014, A new species of wolf-spider (Alopecosa ogorodica sp. n.) from the Russian Mountain Altai with remarks on Arctosa meitanensis Yin et al., 1993 (Araneae: Lycosidae), Zootaxa 3856 (3), pp. 443-450: 447-449

publication ID

http://dx.doi.org/10.11646/zootaxa.3856.3.9

publication LSID

lsid:zoobank.org:pub:CBAEA67A-E797-4373-BFEB-F92DAF707AFC

persistent identifier

http://treatment.plazi.org/id/03F587D5-FC75-FFFD-FF2F-61834608FB66

treatment provided by

Plazi

scientific name

Arctosa meitanensis Yin, Wang, Xie & Peng, 1993
status

 

Arctosa meitanensis Yin, Wang, Xie & Peng, 1993 

Figures 1View FIGURE 1, 21View FIGURES 15 – 24 - 30

Arctosa meitanensis Yin et al. 1993: 12  , figs 19–22 (♀, not examined); Yin et al. 1997: 95. figs 43 a –d (♀); Chen & Song 1999: 140, figs 8–14 (♀, description ♂); Song et al. 1999: 319, figs 189 F, M (♂♀); Zhu & Zhang 2011: 257, figs 185 A –D (♂♀). Arctosa  sp.: Trilikauskas & Ponomareva, 2013: 650.

Examined material: RUSSIA: 1 ♂ ( ISEA) Altai Republic, Ulagan District, Altai State Nature Reserve, Teletskoye Lake, c. 1 km NE of Chiri cordon, 489 m a.s.l., 51 ° 21 'N, 87 ° 49 'E, pine forest, pitfall traps, 7 – 18.06.2012 (S.M. Ponomareva); 1 ♀ ( ISEA), 2 ♀ ( ISEA) same locality, 2 km NE of Chiri cordon, 543 m a.s.l., 51 ° 22 'N, 87 ° 49 'E, wormwood-woodreed steppe meadow, pitfall traps, 8 – 18.07.2012, 25.07 – 04.08.2012 (S.M. Ponomareva).

Diagnosis. Arctosa meitanensis  is similar to Arctosa tridentata Chen & Song, 1999  but differs in the structure of the terminal part and embolus. The apical part of the terminal apophysis (TA in Fig. 27View FIGURES 25 – 28) is sharp in A. meitanensis  while the apical part to that of A. tridentata  is wide and rounded ( Chen & Song 1999: fig. 7). The synembolus (Se in Fig. 27View FIGURES 25 – 28) is longer than in A. tridentata  . The embolus is narrow and long in A. meitanensis  (Em in Fig. 27View FIGURES 25 – 28) while the embolus of A. tridentata  short and wide ( Chen & Song 1999: fig. 7). The female of A. meitanensis  is similar to Arctosa serrulata Mao & Song, 1985  but differs in the absence apical chink between the septum and body (see Fig. 29 and Song et al., 1999: fig. 190 b).

Discription. Male. Total length 5.40. Carapace: 3.00 long, 1.80 wide. Abdomen 3.00 long. Carapace yellowish, with light marginal bands ( Fig. 21View FIGURES 15 – 24). Eye region black. Eye interdistances: AME 0.08, ALE 0.07, PME 0.16, PLE 0.12; AME-AME 0.04, AME-ALE 0.03, PME-PME 0.10, PME-PLE 0.16. Clypeus height 0.1. Chelicerae elongate, yellow, with two promarginal and three retromarginal teeth. Labium brown, longer than wide. Sternum yellowish ( Fig. 22View FIGURES 15 – 24). Legs yellowish, with grey stripes. Abdomen grey, with numerous yellowish spots. Palps as in Figs 25-28View FIGURES 25 – 28.

Length of leg segments.

Male leg spination.

femur patella tibia metatarsus I d 1 - 1, p 1 - 1 ap p 1 - 1, v 2 - 2 - 1 ap v 2 - 2 - 2 ap

II d 1 - 1, p 1 - 1 ap p 1 - 1, v 2 - 2 - 1 ap v 2 - 2 - 2 ap

III d 1-3 - 3 p 1, r 1 d 1-2 - 3, v 2 - 2 - 2 ap d 2 - 2, p 2 ap, r 2 ap, v 2 - 2 - 1 ap IV d 1-3 - 3 p 1, r 1 d 1-2 - 3, v 2 - 2 - 2 ap d 2 - 2, p 2 ap, r 2 ap, v 2 - 2 - 1 ap Female. Total length 7.10. Carapace: 3.50 long, 2.00 wide. Abdomen 3.60 long. Carapace light brown, with yellowish marginal bands ( Fig. 23View FIGURES 15 – 24). Eye region black. Eye interdistances: AME 0.06, ALE 0.09, PME 0.15, PLE 0.12; AME-AME 0.04, AME-ALE 0.04, PME-PME 0.12, PME-PLE 0.23. Clypeus height 0.5. Chelicerae elongate, brown, with two promarginal and three retromarginal teeth. Labium and sternum yellowish ( Fig. 24View FIGURES 15 – 24). Legs yellowish with grey rings. Abdomen grey, with numerous yellowish spots. Epigyne as in Figs 29–30.

Length of leg segments.

Female leg spination.

Habitats. Wormwood-woodreed steppe meadow and motley grass in pine forest near Lake Teletskoye.

Comments. This species described by female from Guizhou Province of China ( Yin et al., 1993). Later Chen & Song (1999) described male from Henan Province, China. Because of the lack of a proper description and drawings, here we provide a redescription of both sexes together with drawings and photos of specimens newly collected from Altai Mountains. This is the western- and northernmost records for this species.

Russian specimens of Arctosa meitanensis  differ somewhat from those depicted in Yin et al. (1993) and Chen & Song (1999); however, unpublished images of the pedipalps of males from South China (Z.S. Zhang pers. comm.) show that the Ta and Se are quite variable and that Russian specimens fall within that variation.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Lycosidae

Genus

Arctosa

Loc

Arctosa meitanensis Yin, Wang, Xie & Peng, 1993

Trilikauskas, Laimonas A. & Azarkina, Galina N. 2014
2014
Loc

Arctosa meitanensis Yin et al. 1993 : 12

Trilikauskas 2013: 650
Zhu 2011: 257
Chen 1999: 140
Song 1999: 319
Yin 1997: 95
Yin 1993: 12
1997