This small butterfly, sunning itself in dappled shade in the creek woods, spent most of its time with wings folded high. The top of the wing pattern looks sort of like a Gorgone Checkerspot, but the underwing looks more like a Silvery Checkerspot. According to my regional guide, the Silvery is more common here...but the top of the wing doesn't look right for that (or, I'm just not familiar enough with the small patterned butterflies...note that the tips of the antennae clubs are orange, which in the book I'm using is characteristic of another checkerspot that isn't in our area (usually, anyway.)

I'll be linking a picture of the underwing and another of the top of the wings.