Keywords: Monarch butterfly larva, Danaus plexippus, Asclepias syriaca, common milkweed, butterfly flower, silkweed, silky swallow-wort, Virginia silkweed, Eliot, York County, Maine, monarch, butterfly, insect, insecta, nature, outdoors, photography, host plant, New England, USA, United States of America, northeast, North America, host, larva, monarch larva