<ref name="Pullen_1961">{{cite journal |first1=B. E. |last1=Pullen |year=1961 |title=Non-granivorous food habits of ''Pheidole'' ''grallipes'' Wheeler and its possible phyletic significance (Hymenoptera: Formicidae) |url= |journal=Pan-Pacific Entomologist |publisher= |volume=37 |issue= |pages=93–96 |doi= }}</ref>