This is Ethan's White-lined Sphinx. We didn't keep it long before we let it go. It was neat to get a close up look though.
What I found on-line: This is a moth species commonly called "hummingbird"," "sphinx," or "hawk" moths.
The Sphingidae are strong fliers, with a rapid wingbeat. Most are medium to large moths, with heavy bodies; wingspread reaches 5 inches or more in some species. Although a few are active in the daytime, most species in the group are active at dusk. Most, but not all, sphingids feed much like hummingbirds, hovering in front of a flower and sipping nectar through the extended proboscis. The proboscis rolls up like a party noisemaker when not in use, and may not be readily evident in a resting moth.
(this one fed like a hummingbird and had a proboscis).