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crazy caterpillar - Polygonia interrogationis

crazy caterpillar - Polygonia interrogationis
Evansville , Vanderburgh County, Indiana, USA
September 7, 2010
Size: about 1.75" long
i'm thinking toxic barbs...


Moved from ID Request.

I would try
Question Mark butterfly (Polygonia interrogationis)
What kind of tree is it feeding on?

what kind of tree?
i have no idea. it was just a tiny twig growing up as a weed in my flower bed. All the leaves except one or two have already been devoured.
I almost pulled the whole thing up before i saw this little beauty! Thanks for the ID.
Are the little spikey things toxic?

I don't believe that the branched spines are toxic or irritating to the skin if touched. Are you planning to rear it to adulthood? I think it would be cool to watch :)

No, I'm just going to let it do it's thing. My whole back yard is a flower garden.
This is, however, the first time i've seen this type caterpillar. I've seen question marks on the rotting fruit i put out for the butterflies.
I also saw a red-spotted purple for the first time today, and a big, beautiful hornworm. It has been a fabulous year for butterflies and moths! I grow flowers especially to attract the sphinx moths.
i LOVE IT! thanks, Kelly!

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