Gulf Fritillary

a caterpillar which grows to approximately 4 cm (1.6 in) in length. It is bright orange in color and covered in rows of black spines. The spines are soft to the touch and do not sting, but the larva is poisonous if eaten. The larva feeds exclusively on species of passionflower, such as maypop (Passiflora incarnata), yellow passionflower (P. lutea), and running pop (P. foetida).

Black and orange stripes warn predators of the toxicity of the caterpillar which protects it from predators. Many birds avoid it. Some specialized insects such as paper wasps and pragmatists have been observed feeding on it, however, and larger caterpillars sometimes eat smaller ones. This species belongs to the "orange" Batesian mimicry complex.