Image: Flickr user Prakaas Lekshmanan
This article at The Ark in Space features a nice photo collection of the lovely glasswinged butterfly (previously), scientific name Greta oto. This beautiful species is typically found from Mexico and south through Panama and Columbia, though they have been sighted in Florida as well. The species lays eggs mostly on toxic tropical plant Cestrum, on which the caterpillars also feed, likely rendering them toxic to predators. See the link above for additional photos and information.
Image: Flickr user Justin Lowery
Image: Flickr user canorus
Image: Flickr user Benjamin Pender