I'm sorry for the horrible picture, but it's what I could get.
That's a segmented exoskeleton, if you can't tell. Kind of a flat head. This one was maybe a centimeter and a half long. I've seen a few of these this year, this one being the biggest.
They're very interesting in that when you tap in front of them or nudge their heads, they scurry backwards just as agilely as they do forwards, sometimes for quite a distance. This one was in the bottom of a bowl of ground cherries I picked.