Kempf, Walter W. “Additions to the Knowledge of the Cephalotini Ants (Hymenoptera, Formicidae)”. Papéis Avulsos De Zoologia, vol. 16, no. 1-27 (1964), July 1964, pp. 243-55, https://doi.org/10.11606/0031-1049.1964.16p243-255.