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Caterpillar/butterfly identification

Can you assist me in identifying a caterpillar or butterfly?

There are thousands of species of insects that begin life as caterpillars. It is nearly impossible to identify them without seeing them, and even then it can bequite difficult. Features to note are whether they are smooth, hairy, bristled, or spiny; presence or absence of knobs, bumps, a rear horn, fleshy filaments, or tufts; sluglike or more typical caterpillar form; and host plant.

Here are some resources that may help:

Caterpillars of Pacific Northwest Forests and Woodlands

Caterpillars of Eastern Forests

Butterflies of North America

Web Imagesof North American Moth Species

Moths of North America

Caterpillar Hostplants Database

We hope this helps,

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