<ref name="Tanquary_1912">{{cite book |first1=M. C. |last1=Tanquary |year=1912 |title=Biological and embryological studies on Formicidae |url=https://doi.org/10.5962/bhl.title.70884 |location=Urbana Champagne |publisher=University of Illinois |pages=i–iv, 1–100, 8 pls |isbn=}}</ref>