Reference
Dolores Gonzalez, Larry Jimenez-Ferbans, Pedro Reyes-Castillo (2016): Phylogeny and species delimitation in the group Rhodocanthopus of the genus Passalus (Coleoptera: Passalidae) inferred from morphological and molecular data, with description of two new species – Arthropod Systematics and Phylogeny – 74: 255 - 266.