Arctosa cinerea (Fabricius, 1777)

Paredes-Munguía, Williams, Brescovit, Antonio D. & Teixeira, Renato A., 2024, Revision of Neotropical wolf spider genus Arctosa C. L. Koch, 1847 (Araneae: Lycosidae), with description of seven new species, Zootaxa 5414 (1), pp. 1-83 : 7

cinerea group, females

1 Median septum (MS) completely flat ( Fig. 5a )........................................ Arctosa ayaymama sp. nov.

- Median septum (MS) with a longitudinal raised ridge ( Fig. 28i )................................................. 2

2 Transversal septum projected posteriorly ( Dondale & Redner 1983a: fig. 70)............. Arctosa littoralis ( Hentz, 1844)

- Transversal septum aligned with epigastric furrow ( Figs 44a , 45b ).............................................. 3

3 Vulval chamber positioned below to the head of spermatheca, i.e., visible in dorsal view ( Roth & Brown 1976: fig. 7).............................................................................. Arctosa serii Roth & Brown, 1976

- Vulval chamber positioned behind to the head of spermatheca, i.e., not visible in dorsal vew ( Fig. 28h )................ .. 4

4 Head of spermatheca rectangular ( Figs 12b , 13e )............................................................ 5

- Head of spermatheca triangular or pear-shaped ( Figs 28e , 44d )................................................ .. 6

5 Epigynal plate projected into the atrium ( Figs 12a , 13b )................................... Arctosa costenola sp. nov.

- Epyginal plate not projected ( Jiménez & Dondale 1984: fig. 1)................................................................................................................ Arctosa denticulata Jiménez & Dondale, 1984

6 Head of spermatheca pear-shaped ( Figs 28e , 32b )............................... Arctosa sapiranga Silva & Lise 2009

- Head of spermatheca triangular ( Figs 44d , 45b )............................................. Arctosa villa sp. nov.

Figures

FIGURE 5. Arctosa ayaymama sp. nov. Epigynum (MUSM-ENT 506993) a–c (a, ventral; b, dorsal; c, dictynoid pore) d, Male leg I, prolateral. Scale bars: a, 150 µm, b, 400 µm, c, 15 µm, d, 200 µm. CO copulatory opening, FD fertilization duct, H hood, HS head of spermatheca, DP dictynoid pore, MS median septum.

FIGURE 12. Arctosa costenola sp. nov. Male pedipalp holotype (ICN-Ar 1378) a–c (a, anterior; b, ventral; c, retrolateral). Scale bars: a–c, 0.25 mm. CMS cymbial macrosetae, DMA depression of median apophysis, E embolus, Pa posterior arm, Pp palea protuberance, Ra retrolateral arm, ST subtegulum, T tegulum, TA terminal apophysis

FIGURE 13. Arctosa costenola sp. nov. Male pedipalp (ICN-Ar 1378) a–c (a, prolateral; b, ventral; c, retrolateral). Pedipalp bulb d–h (d, prolateral; e, ventral; f, retrolateral; g posterior; h, anterior). i dorsal cymbium macrosetae. Scale bars: a–c, 0.20 mm, d–h, 100 µm, i, 200 µm. C conductor, DMA depression of median apophysis, E embolus, Ra retrolateral arm, Pa posterior arm, T tegulum, TA terminal apophysis, TK tegular keel, ST subtegulum,

FIGURE 28. Arctosa sapiranga Silva & Lise, 2009. Male pedipalp. a–c. Pedipalp, holotype, Rio Grande do Sul (MCTP 19999) (a, ventral; b, retrolateral; c, prolateral). d–e. Palpal bulb (d, anterior; e posterior). f–h. Paratype, São Paulo (MNRJ 6501), (f, retrolateral, g, ventral, h, anterior). Scale bars: a–h, 0.25mm. DMA depression of MA, E embolus, MA median apophysis, Pa Posterior arm, Ra Retrolateral arm, SD seminal duct, ST subtegulum, T tegulum, TA Terminal Apophysis.

FIGURE 32. Arctosa sapiranga Silva & Lise, 2009. Male. Pedipalp (MCTP 28548) (a, ventral; b, detail TA; c, close up of MA; d, detail Pa; e, protuberance on tegulum). Scale bars: a, 250 µm; b, e 50 µm; c, 100 µm; d, 25 µm. CMS cymbium seate, E embolus, MA median apophysis, Pa posterior arm, Pp palea protuberance, Ra retrolateral arm, ST subtegulum, T tegulum, TA terminal apophysis.

FIGURE 44. Arctosa villa sp. nov. Male pedipalp (MUSM-ENT 500104) a–c, f (a, ventral; b, retrolateral; c, sub anterior; f, anterior). Male prosoma d–e (d, lateral; e, frontal). Scale bars: a–c, f 0.25 mm, d–e 1 mm. CHI chillum, CND condylum, DMA depression of median apophysis, E embolus, Pa posterior arm, Pp palea protuberance, Ra retrolateral arm, TA terminal apophysis.

FIGURE 45. Arctosa villa sp. nov. Male pedipalp (MUSM-ENT 500104) a–c (a, retrolateral; b, ventral; c, prolateral). Pedipalp bulb (MUSM-ENT 505002) d–f, h (d, retrolateral; e, ventral; f, prolateral; h, anterior). g, spinnerets; i, chelicerae. Scale bars: a–c, 0.2 mm, d–f, h, 250 µm, g, 200 µm, i, 500 µm. DMA depression of median apophysis, E embolus, Pa posterior arm, Pp palea protuberance, Ra retrolateral arm, SD seminal duct, SF striae file, TA terminal apophysis.