Caterpillar of the Monarch Butterfly (Danaus plexippus). This is in the final instar larval stage of development, and is seen fixing itself to a leaf of the milkweed Asclepias rotundifolia prior to pupation. The caterpillar is brightly coloured, this is a warning to potential predators. D.plexippus contains cardiac glycosides derived from its food, and is thus toxic to birds and other animals.
Model release not required. Property release not required.