The zebra longwing or zebra heliconian (Heliconius charithonia) is a species of butterfly belonging to the subfamily Heliconiinae of the family Nymphalidae. The boldly striped black and white wing pattern of this butterfly is aposematic, warning off predators. Heliconius charithonia is found in South America, Central America, the West Indies, Mexico, south Texas and peninsular Florida. Adults sometimes migrate north to New Mexico, South Carolina, and Nebraska during the warmer months.