What's That Bug? does not endorse extermination

Any idea what this is?
Location: Sioux City, IA
July 29, 2011 9:51 am
Hi,
Wondering if you have any idea what this caterpillar/worm is?
Thanks!
Signature: Maureen

Four Horned Sphinx

Hi Maureen,
This is a Four Horned Sphinx or Elm Sphinx.  We just posted a photo of a Four Horned Sphinx from Michigan that came a day later than your submission, and out of guilt for having so many backlogged identification requests, we are posting your image as well.

Daniel,
Thank you for quick response. I was amazed to find your website as I was trying to find out what that interesting caterpillar was. I have never seen anything like it before. Thanks again!
Maureen

What's That Bug? does not endorse extermination
Location: Iowa

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