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Photo#917824
Viceroy Caterpillar - Limenitis archippus

Viceroy Caterpillar - Limenitis archippus
Wildwood Park; Radford, Virginia, USA
May 7, 2014
I think that this is a Viceroy caterpillar. Can someone confirm or correct, please? Found it on Salix.

Images of this individual: tag all
Viceroy Caterpillar - Limenitis archippus Viceroy Caterpillar - Limenitis archippus Viceroy Caterpillar - Limenitis archippus Viceroy Caterpillar - Limenitis archippus

Moved
Moved from ID Request.

Almost certainly correct,
but they are similar enough to Red-spotted Purple caterpillars that it is almost impossible to be 100% certain unless you watch them mature into adults. Usually Viceroys are on Salix and Red-spotted Purples are on Rosaceae, and this one does look like a Viceroy to me.

 
Thanks for your input,
David. I know that those two species are hard to ID for sure until they are adults. I am content with an "almost certainly" ID!

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