The Gulf fritillary or passion butterfly is a bright orange butterfly in the subfamily Heliconiinae of the family Nymphalidae. That subfamily was formerly set apart as a separate family, the Heliconiidae. The Heliconiinae are "longwing butterflies", which have long, narrow wings compared to other butterflies.

This Gulf Fritillary was photographed at Irvine, CA on September 28, 2025. View all Gulf Fritillary photos →