Jerarquía taxonómica:
Formicidae → Pogonomyrmex occidentalis (Cresson, 1865)

Familia:
Formicidae

Autor:
(Cresson, 1865)

Sinónimos:
Myrmica occidentalis Cresson, 1865
Pogonomyrmex seminigra (Cresson, 1865)
Pogonomyrmex ruthveni Gaige, 1914
Pogonomyrmex utahensis Olsen, 1934
Pogonomyrmex opaciceps Mayr, 1870