Grossi, P. C., & Grossi, E. J. (2005). A new species of Brachysiderus Waterhouse, 1881 (Coleoptera: Scarabaeidae: Dynastinae) from Maranhao State, Brazil. Zootaxa, 1054(1), 25–29. https://doi.org/10.11646/zootaxa.1054.1.3