Cecropia moth

Back in 2008 I saw my first cecropia moth (Hyalophora cecropia).  It was resting on a variegated dogwood shrub in the front yard at my parent's place.  These are the largest moths in North America with a wingspan up to 15cm.  They're actually fairly common, but like many moth species they fly by night (it's like a rocket flight, and baby that's just what it's for).