Pogonomyrmex occidentalis

Distribution
This taxon was described from the United States.

Additional References

 * [[Media:Cresson 1865b.pdf|Cresson, E. T. 1865b. Catalogue of Hymenoptera in the collection of the Entomological Society of Philadelphia, from Colorado Territory. [concl.]. Proc. Entomol. Soc. Phila. 4: 426-488 PDF]]