My dog found this little friend crawling on the deck this morning here in Parker, Colorado. We would like to know what type of caterpillar it is. Any suggestions? About 3″ – 3 1/2″ long, brown with dark brown spots on its back & white markings on its sides with a black spot in the white area that look a bit like an eye. Not fuzzy and about 3/4″ in width.
This is the Achemon Sphinx caterpillar. The caterpillars can be green or reddish brown.
They are found over most of the US and Mexico. The larvae do feed on grape leaves, Virginia creeper, and Ampelopsis (porcelain vine) plants. The caterpillars lose their tails in the last stage before it turns into a pupa. They pupate in the soil.
The adults feed on nectar from flowers. The adults can be seen at dusk feeding…looking kind of like hummingbirds.