WARD, PHILIP S. 2017. “A Review of the <em>Pseudomyrmex</em> <em>ferrugineus</em> and <em>Pseudomyrmex</em> <em>goeldii</em> Species Groups: Acacia-Ants and Relatives (Hymenoptera: Formicidae)”. Zootaxa 4227 (4). Auckland, New Zealand:524–542. https://doi.org/10.11646/zootaxa.4227.4.3.