M. L. Oliveira, C. S. F. Mariano , M. A. Costa , J. H. C. Delabie , and S. Lacau, “Pheidole protaxi sp. nov. (Hymenoptera: Formicidae), new species from tabuleiro forests of the Atlantic Forest biome”, Sociobiology, vol. 62, no. 4, pp. 533–537, Dec. 2015.