<ref name="Brown_1965">{{cite journal |first1=W. L., Jr. |last1=Brown |year=1965 |title=Studies on North American ants. I. The ''Formica integra'' subgroup |url=https://antcat.org/documents/456/6725.pdf |journal=Entomological News |publisher= |volume=76 |issue= |pages=181–186 |doi= }}</ref>