Caterpillar Details Hairs on the American Dagger Moth Caterpillar can break off into skin and sting, causing hives, burning sensations, and general skin irritation, so handling this larva is not recommended. The body is covered in short tufts of yellow hairs, and longer wispy yellow hairs as well.

What do dagger moths do?

The dagger moth caterpillars feed on the leaves of alder, ash, elm, maple, oak, willow, and other hardwood trees in yards, parks, backyards, forests and woodlands throughout the growing season.

What does a dagger moth turn into?

The larvae are born less than 10 days after. Larvae feed on tree sap, leaves, and more as they grow up to be the American Dagger Moth caterpillar, after which it transforms from an American Dagger Moth caterpillar to a full-fledged adult.