Geographic location of the bug: CT
Time: 05:41 PM EDT
Your letter to the bugman: Dear Bugman,
I’ve been unable to find this one in my Caterpillars of Eastern North America book, or online. It was photographed on lam’s quarters, but I don’t know if it was feeding.
How you want your letter signed: Thanks for taking pity on my curiosity!
Though the colors seem light by comparison, we believe your caterpillar is that of a Questionmark butterfly, Polygonia interrogationis, similar to this BugGuide image.