Almeida, L.M. & Santos, P.B. (2014)

Synopsis of Oryssomini Gordon (Coleoptera: Coccinellidae)
from the Neotropical region with new species of Oryssomus Mulsant, Pseudoryssomus Gordon and Gordonoryssomus Almeida & Lima

. Zootaxa, 3846 (1), 42–68.