Observation notes: behavior is very calm, it is summer. I don't know the name of the host plant but it had some type of shriveled leaves along with straight ones.
Verified by: stomlins701
Verified date: July 17, 2013
Coordinator notes: I believe this is a later instar of the Gaudy Sphinx, Eumorpha labruscae. The caterpillar mimics a snake, which gives it some protection. The moth is indeed beautiful, a large green-colored insect. Here is a video I found of the caterpillar, and a link to the species web pages on Moth Photographers Group and bugguide.net.
The suggested id of Deilephila elpenor is found in Europe and Asia, and only occasionally strays to North America.