Material from Canada [MANITOBA, South Cypress RM. Treesbank. (Wheeler); USNM #59925, USNM ENT 00529453] referred to Polyergus bicolor by Trager, 2013: 514; from United States [COLORADO, El Paso Co. Pikes Peak; MCZ 21738] referred to Polyergus mexicanus by Trager, 2013: 515.