Neoryssomus

Almeida, Lúcia M. & Santos, Paula 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) : -

Key to species of the Neoryssomus (based on Hofmann (1970))

1. Elytra with greenish metallic shine; elytral punctation dispersed and disordered; antennomere III three times longer than IV; last antennomere as long as the previous two; length 3.5 to 4.75 mm ( Chile)..................... N. germainii (Crotch)

1’. Elytra entirely black or black with reddish border; prothorax black; 3rd antennomere two times longer than the 4th; length 3.3 to 3.65 mm ( Chile).................................................................. N. variabilis (Korchefsky)