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Photo#1680088
purple and orange spotted caterpillar - Arge humeralis

purple and orange spotted caterpillar - Arge humeralis
Long Branch Sand Prairie Nature Preserve, Mason County, Illinois, USA
June 18, 2019
Found in sand prairie remnant. I think it was feeding on common milkweed but I'm not 100% sure.

Moved

Maybe...
It was poison ivy or poison sumac?


 
We don't have poison sumac in
We don't have poison sumac in this part of the state but yes, there is certainly plenty of poison ivy around in the area where I took the photo and yes the wide leaves definitely could have been poison ivy. Thanks. I've not seen the adults at that site but at many other locations.

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