In 1889, while hiking in the Beartooth Mountains, a young Rosemary Vivalter stumbled upon a swallowtail butterfly whose wings so perfectly resembled lupine blossoms that she could hardly believe her eyes. She named it Papilio lupinus, and over the rest of her long, long life, Rosemary hunted for more of these stunning illusionists. Her research founded the field we now know as Floridopterology, the study of butterflies who camouflage themselves by mimicking flowers and plants. Floridopterology requires long hours spent perfectly still in fields of wildflowers, waiting to catch a glimpse of a wing flap amongst the petals. The specimens shown here are Rosemary’s favorites, all native to Montana.