Species: Pogonomyrmex sp. RAJ-taf (unpublished manuscript name; name not to be used)
Holotype worker: ARGENTINA, Tucumán Province: Departamento Tafi de Valle, 2.2 km N El Infiernillo, 26º44.3'S, 65º46.9'W, 9920 feet (3005 m), 18 January 2010 (R.A. Johnson #4331) [MACN]. Paratypes, same data as holotype: FML (3w), MACN (6w), LACM (3w), MCZ (6w), USNM (3w), RAJC (11w, 1dq, 12m), UCDC (3w). Additional paratype series from the same locality and date or on 26 January 2010 - RAJ #4330: RAJC (1 dq); RAJ #4332: RAJC (4w); RAJ #4333: FML (3w), MACN (6w), RAJC (6w); RAJ #4334: MACN (9w), RAJC (12w); RAJ #4336: MACN (3W), RAJC (9w); RAJ #4337: FML (3w), MACN (3w), RAJC (6w); RAJ #4358: MACN (3W), RAJC (5w, 2m).
Etymology: The specific epithet, tafi, is a noun in apposition and invariant in form that is derived from a small localized group of Indians that lived in the area that is now Tafi de Valle, Tucumán Province, Argentina.
Species description: (from RAJ revision)
Other literature: None
Photos of all castes: holotype worker, paratype dealate queen, alate queen, paratype male, intercaste