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Adult IO Moth Automeris io
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IO caterpillars hatching from eggs on hackberry.
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First few instars are red and stay together
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Clearly these caterpillars are a social group, staying together on the plant.
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As they grow and change color, they follow each other whereever they go
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In this photo, one larva is in the center while four larvae circle it.
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At this point it becomes apparant that the caterpillar is an Io Moth
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Caterpillars still stay grouped together
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By fifth instar, caterpillars are loners.
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A classic pose for Io caterpillars is '7', underneath a leaf. This caterpillar is eating Red Bay.
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Red adult Io moth, wings open
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Normal position for adult Io moths
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A yellow male Io Moth.
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Male adult Io moth's antennae are feathered
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Although Io caterpillars sting badly, adult moths cannot hurt you.
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