EENY-436, a 4-page illustrated fact sheet by Donald W. Hall, is part of the Featured Creatures collection. It describes this pierid butterfly that is commong throughout much of the U. S. — its distribution, description, life cycle and biology, host, and economic importance. Includes selected references. Published by the UF Department of Entomology and Nematology, February 2009.
http://edis.ifas.ufl.edu/IN793