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.[1]
The wingspan is 82–117 mm.
The larvae feed on Cassia species, including Cassia emarginata.