WARD, PHILIP S. “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, no. 4 (February 6, 2017): 524–542. Accessed December 2, 2021. https://www.mapress.com/zt/article/view/zootaxa.4227.4.3.