A Regal Moth caterpillar in Howard Co., Maryland (7/8/2012). Often referred to as the Hickory Horned Devil, Regal Moth caterpillars look very fierce with lots of spines and bold colors, but they are actually harmless. Photo by Richard Orr. (MBP list)
Regal Moth caterpillar in Anne Arundel Co., Maryland (7/20/2017). Photo by Anthony VanSchoor. (MBP list)
An early instar of the Regal Moth caterpillar, or Hickory Horned Devil, in Howard Co., Maryland (8/4/2013). Photo by Bonnie Ott. (MBP list)
A Regal Moth caterpillar in Anne Arundel Co., Maryland (8/2/2017). Photo by Bob Cammarata. (MBP list)
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