<ref name="Warren_&_Rouse_1969">{{cite journal |first1=L. O. |last1=Warren |first2=E. P. |last2=Rouse |year=1969 |title=The ants of Arkansas |url= |journal=University of Arkansas Agricultural Experiment Station. Bulletin |publisher= |volume=742 |issue= |pages=1–68 |doi= }}</ref>