June 3, 1859

in Thoreau’s Journal:

A large yellow butterfly (somewhat Harris Papilio Asterias like but not black-winged) three and a half to four inches in expanse. Pale-yellow, the front wings crossed by three or four black bars ; rear, or outer edge, of all wings widely bordered with black, and some yellow behind it; a short black tail to each hind one, with two blue spots in front of two red-brown ones on the tail.