Schacontia rasa is a moth of the family Crambidae described by Maria Alma Solis and Paul Z. Goldstein in 2013.

It is found in Mexico, Cuba and the Dominican Republic.

The antemedial and postmedial lines are jagged and darker grey.

[1] Adults have been recorded on wing in June (in Mexico), July (in Cuba) and July and September (the Dominican Republic).

The specific epithet refers to the absence of male hind tibial and metatarsal structures and epipleural setal tufts (presumably secondary sexual characters) present in other Schacontia species.