As I was cleaning up in the gardens yesterday, I came across this cocoon on a small arborvitae shrub. I've no idea what made it and I'm calling on the power of the internet to hopefully help identify what might be spending the winter in it. It measures about two inches long and an inch in diameter.
Since the shrub is located under a maple tree and we've seen the caterpillars for the Polyphemus and Cecropia moths on that tree, perhaps it's one of those. I wonder when in spring or summer the inhabitant will emerge so that I can keep watch and maybe see it come out.
I saw a similar cocoon on another shrub a week or so ago, but I can't remember just where it was, so this isn't the only one we've got. Any ideas as to what this is?