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Orangestriped Oakworm Caterpillar

Anisota senatoria

Description:

Fifth instar caterpillars are black with orange stripes. They have prominent spiny horns on the second segment of the thorax. There are also smaller spikes on the remaining segments. They feed on oak trees during August and September.

Habitat:

I spotted this caterpillar in a yard in a semi-rural area with lots of oak trees.

Notes:

If caterpillar populations are large enough, they can cause severe defoliation of oak trees.

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Christine Y.
Spotted by
Christine Y.

Connecticut, USA

Spotted on Sep 12, 2015
Submitted on May 17, 2016

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