The Obrina Olivewing (Nessaea obrinus) is a species of butterfly of the Nymphalidae family. It is found from Colombia and the Guianas to themouth of the Amazon and south to central Bolivia and Mato Grosso in Brazil, extending to northern Argentina. The length of the wings is 25–40 mm for males and 26–41 mm for females. Adults of ssp. obrinus are on wing in January and from July to November. Adults of ssp. faventia are on wing year round, but mainly from June to October and adults of ssp. lesoudieri are on wing year round, with no observed peak of abundance.