Arctosa serii Roth & Brown, 1976

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 : 39

Arctosa serii Roth & Brown, 1976

Fig. 65

Arctosa serii Roth & Brown, 1976: 61 , figs 1‒2, 4‒5, 7. Male holotype from El Desemboque de los Seris, Sonora, Mexico, 29°30'N 112°34'W, 4.iii.1974, H. Flanders leg., AMNH, not examined). Dondale & Redner 1983a: 26, figs 57‒59, 61.

Arctosa littoralis : Chamberlin 1924: 673 (some specimens from Gulf of California misidentified, according to Roth & Brown 1976).

Remarks. Arctosa serii is sympatric with A. littoralis , but the latter prefers mostly sandy beach environments ( Esquivel-Bobadilla et al. 2013). Chamberlin (1924) confused some specimens of A. serii with A. littoralis because both came from similar localities. However, the larger size of A. serii (about one third larger than A. littoralis ) and the paler body pattern also served to differentiate it.

Emended diagnosis. Because of its sympatry with A. littorais , males of A. serii are recognized among all neotropical species by the shorter and sharp posterior arm of median apophysis, which is also not spatulated as in A. littoralis ( Roth & Brown 1976: fig. 2). Females of A. serii are distinguished from all neotropical species by the shortest median septum in the epigyne and the narrow transversal septum ( Roth & Brown 1976: figs 4, 5).

Description. See Roth & Brown (1976: 61‒63).

Distribution. Mexico (Baja California, Sonora), updated records based on Roth & Brown (1976: 63) ( Fig. 65 ).

Figures

FIGURE 65. Geographic distribution records of Arctosa denticulata (blue asterisc), Arctosa littoralis (yellow square), Arctosa serii (light blue star), Trochosa fusca comb. nov. (green dot).