<ref name="Snelling_&_Torres_1998">{{cite journal |first1=R. R. |last1=Snelling |first2=J. A. |last2=Torres |year=1998 |title=''Camponotus ustus'' Forel and two similar new species from Puerto Rico (Hymenoptera: Formicidae) |url=https://antcat.org/documents/4058/8461.pdf |journal=Contributions in Science (Los Angeles) |publisher= |volume=469 |issue= |pages=1–10 |doi= }}</ref>