Adelpha erotia, the Erotia sister, is a butterfly of the family Nymphalidae. It was described by William Chapman Hewitson in 1847.

 Adelpha erotia has a wingspan of about 53 mm. The wings of these butterflies have a brown ground colour with a characteristic blackish marbled pattern and a broad white band on the forewings. In the subapical area of the forewing there are large orange markings. The hindwings have a similar pattern, with a broad white median band.

Distribution and habitat: This species can be found from Mexico to Peru and Bolivia.

Subspecies: 

• Adelpha erotia erotia (Nicaragua to Panama, Colombia, Ecuador, Peru, Bolivia, Guyana)
• Adelpha erotia caphira (Hewitson, 1869) (Venezuela)