tortoise bug. Quite a number of people are posting what's-this images of them this year.

Thanks much!

I did a little more research on this bug after seeing your answer. Specifically, it is called a clavate tortoise beetle. It likes to eat the leaves of plants from the nightshade family, boring through them from the bottom creating little holes.

After looking more closely at the tomato plant it was on, I did see a few holes, so unfortunately, he had to go. Glad I got him off before he did more damage!