Hermeuptychia sosybius, the Carolina satyr, is a butterfly of the family Nymphalidae. It is found in the United States from southern New Jersey south along the coast to southern Florida, west to south-eastern Kansas, central Oklahoma and central Texas. It is also found in Mexico. The wingspan is 32–38 mm. The upperside is brown without markings. The underside is also brown, but with small eyespots rimmed with yellow on both wings. They feed on sap and rotting fruit.