Shield bug

These are popularly known as stink bugs, apparently. I’ve never heard it. In New Mexico, stink bug refers to a big black beetle which raises its rear defensively to emit a fairly bad smell; nothing like a skunk but not something one would probably want to eat.

I wonder what purpose the dimples serve? A few of the animals here have them; like this beetle. I wonder if it’s like golf balls and they help these guys fly with less energy…