When looking through the 22 "Buckeye" images at Acclaim Images.com this Buckeye Butterfly, Closeup of Wing was a favorite.
All of their pictures are hand picked, availiable in a number of formats, and you can even get custom prints and posters.

Description:
Buckeye Butterfly, Closeup of Wing
Stock image of a Buckeye Butterfly, closeup of wing showing buckeye, coloration and texture. This is a live, wild butterfly.

Some related terms for more images:
wing,  lepidoptera,  flying insects,  buckeyes,  animal,  wings,  butterfly wings,  bugs,  junonia coenia,  buckeye butterflies,  entomology,  animals,  buckeye butterfly,