Mystery Pupa

I found this thing while digging in an old raised bed where I used to grow raspberries but now grow goldenrod and poison ivy.

It is definitely alive. It wiggled slowly.


(Click on images to enlarge)

(It's shiny with water because I rinsed the dirt off for the photos.)






I asked the nice people on the IN Nature Facebook group for ID help. The consensus is that it's a moth pupa, probably some kind of Sphinx moth.