Waved Sphinx
Ceratomia undulosa
May 21, 2004
Here's a bigg'un.   It's
found all over the US and 
in my area, the caterpillars 
feed upon oaks and ashes.

Note the dark wavy lines on the fore and hindwings, and the single pale reniform spot with a heavy dark outline.

The adults probably don't
feed, as is the case with a 
number of the large sphingidae. 
I photographed this one on the right about a month later (June 18).