The adult butterfly is about 2-1/2″ to 3-1/2″ long. The wings are long and oval with prominent yellow bands and rows of yellow spots on the upper surface. The same markings occur on the undersurface of the wings, but are less vivid. The zebra longwing is the state butterfly for Florida, and is present throughout the state during most of the year. View the zebra longwing caterpillar here!