Gulf Fritillary Butterfly

The Gulf fritillary, Agraulis vanillae (Linnaeus), is a brightly colored butterfly common across extreme southern portions of the United States. At home in most open, sunny habitats, it frequents roadsides, disturbed sites, fields, open woodlands, pastures, yards, and parks. It is a regular in most butterfly gardens, including those in more urban settings.
http://entomology.ifas.ufl.edu/creatures/bfly/gulf_fritillary.htm