Species: Pogonomyrmex atratus
Taxonomic history (from RAJ):
Pogonomyrmex vermiculatus var. atrata Santschi, 1922: 347 (worker). Syntypes examined: 1 worker [MHNG], 2 workers [MACN], 11 workers [MLPA], Tres Esquinas, Mendoza Province, Argentina (Dr. Carette). See also Gallardo, 1932: 139, fig. 25.
Pogonomyrmex atratus Santschi; Kusnezov, 1951: 251. Raised to species.
Etymology: The specific epithet, atratus (Latin, atratus = clothed in black), refers to the deep black coloration that Santschi noted in the species description.
Species description: Santschi, 1922 (RAJ revision description)
Other literature: Gallardo, 1932; Kusnezov, 1951
Photos of all castes: lectotype worker, worker