Which butterfly is the state butterfly of Florida?

The zebra longwing, Heliconius charithonia, is the official state butterfly of Florida.

Florida designated the zebra longwing as its state butterfly in 1996. The species is recognizable by elongated black wings marked with narrow yellow stripes. It is native to parts of the southern United States, Mexico, Central America, and South America, with Florida populations especially associated with warm, wooded habitats.

Unlike many butterflies, adult zebra longwings regularly eat pollen as well as nectar. Pollen provides amino acids that help them live unusually long lives for butterflies, sometimes several months. Their caterpillars feed mainly on passionflower vines, whose toxic chemicals can provide protection from predators.

The zebra longwing is also notable for communal roosting. Groups may gather together at night, often returning to the same sheltered sites. It is sometimes confused with the similarly striped gulf fritillary, but the gulf fritillary has orange rather than predominantly black wings.