Caterpillars of Pacific Northwest
Forests and Woodlands

Blue and black; dense white pairs project laterally. This species is common on many broadleaf trees, in particular white oak, during May and June.

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/insects/catnw/pht99.htm
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Page Last Modified: August 3, 2006