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Io Moth Caterpillar

Family Saturniidae


Io Moth Caterpillar (Automeris io)

Io Moth Caterpillar (Automeris io)

Flickr user amy_b (CC ND license)

About this Caterpillar:

With many-branched spines full of poison, this io moth caterpillar is ready for a fight. Eggs are laid in clusters, so earliest instar caterpillars will be seen in bunches. They start larval life a dark brown, and gradually molt from brown to orange, then tan, and finally to this green color.

Where It's Found:

Fields and forests from southern Canada all the way to Florida and Texas

What It Eats:

Quite a variety – sassafras, willow, aspen, cherry, elm, hackberry, poplar, and other trees; also clover, grasses, and other herbaceous plants


Giant Silkworm and Royal Moths (Family Saturniidae)


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