Vieira, R., Bravo, F., & Rafael, J. A. (2010).

Ommatius Wiedemann, 1821, normus species-group (Diptera, Asilidae): description of two new species and comments on Brazilian species

. Zootaxa, 2344(1), 39–51. https://doi.org/10.11646/zootaxa.2344.1.4