Archonias is a monotypic genus of butterflies in the family Pieridae. Archonias brassolis, the cattleheart white, is its sole species. It is found from Central America, south through most of South America.

The wingspan is 56–65 mm for A. b. rubrosparsa and 31–34 mm for A. b. approximata. Adults of A. b. approximata have been recorded feeding on the nectar of Eupatorium species.

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