Cupello, M., & Vaz-De-Mello, F. Z. (2014). Correction of the type species of the South American genus Gromphas Brullé, 1837 (Coleoptera: Scarabaeidae: Scarabaeinae: Phanaeini). Zootaxa, 3790(2), 399–400. https://doi.org/10.11646/zootaxa.3790.2.7