Anteos maerula, the angled sulphur or yellow angled-sulphur, is a butterfly of the family Pieridae.

It is found from Peru to Mexico.

Rarely, migrants can be found up to eastern Nebraska, south-eastern Arizona, south-western New Mexico, southern Texas, Mississippi and Florida.

The larvae feed on Cassia species, including Cassia emarginata.

This Pieridae-related article is a stub.