Species: Pogonomyrmex inermis
Taxonomic history (from RAJ):
Pogonomyrmex inermis
Forel, 1914: 267 (worker). Syntypes examined: 8 workers [MHNG], 3 workers [MACN], 1 worker [MLPA], ARGENTINA, San Luis Province: Alto Pencoso (C. Bruch leg.). See also Gallardo, 1932: 128, fig. 18; Kusnezov, 1951: figs. 9a, 9b (MACN worker here designated LECTOTYPE).

Etymology: The specific epithet, inermis (from Latin, inermis = unarmed), refers to this species lacking propodeal spines.
Species description: Forel, 1914 (RAJ revision description)
Other literature: Gallardo, 1932; Kusnezov, 1951; Nobua Behrmann, et al. 2010
Photos of all castes: lectotype worker, worker, alate queen, male

Photos courtesy of Brian Fisher & Antweb