Wisconsin Native Caterpillars

American Lady (Vanessa virginiensis) caterpillar

Gulf Fritillary Caterpillar

Genus-Species: Agraulis vanillae

Description: Brownish orange with black, branched spines. These spines are not harmful to humans.

Chrysalis: Elongated, curved; mottled beige in color. Resembles a dead, curled leaf.

Host Plants: Host plants are Passion Vine and Passion Flower.

Habitat: Open areas, parks, and gardens.

Comments: The Gulf Fritillary is a rare stray to Wisconsin, having been reported from only 3 counties.

Adult Butterfly Profile
Bog Fritillary, Boloria eunomia

Caterpillar Anatomy: A Tutorial

Caterpillars come in many colors, shapes, and sizes. Some caterpillars are quite hairy, while others are smooth. Despite differences between species, though, all caterpillars share certain morphological features.

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Caterpillar Quiz

Take this quick quiz and see how much you know about caterpillars. This quiz is intended for fun, in a random-facts-can-be-cool kind of way.

Eastern Tiger Swallowtail, Papilio glaucus

How Caterpillars Change Into Butterflies

How does this magic happen? Learn about metamorphosis - the process of transformation from an immature form to an adult bitterfly.

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