In my boy-land, smudgy specimens of this were pinned, earnestly but asymetrically, in cigar-boxes, under the title of Danais archippus. At present no reputable entomologist would think of calling it other than Anosia plexippus, nor should I; but the particular thrill which it gave to-day was that this self-same species should wander along at this moment to mosaic into my boreal muse.