Ward, P.S. 2017. A review of the Pseudomyrmex ferrugineus and Pseudomyrmex goeldii species groups: acacia-ants and relatives (Hymenoptera: Formicidae). Zootaxa. 4227, 4 (Feb. 2017), 524–542. DOI:https://doi.org/10.11646/zootaxa.4227.4.3.