Siderone galanthis, the scarlet leafwing or red-striped leafwing, is a species of butterfly of the family Nymphalidae.

The habitat consists deciduous and evergreen forests at altitudes up to 900 meters.

Adults have been recorded imbibing mineralised moisture from the ground.

[2] The larvae have been recorded feeding on Casearia sylvestris and Zuelania quidonia.

This article related to members of the butterfly subfamily Biblidinae is a stub.