Dalechampia
Guides
Hamadryas februa
Gray Cracker, Grey Cracker
Hamadryas februa is a cracker butterfly (Nymphalidae) ranging from Argentina through tropical America to Mexico, with rare strays reaching southern Texas. Adults feed on sap and rotting fruit, while larvae specialize on Dalechampia and Tragia species (Euphorbiaceae). The species exhibits pronounced sexual dimorphism in flight-related morphology, with females being larger and more dispersive than males. Development from egg to adult takes approximately 33–34 days under laboratory conditions.