Flat Bark Beetle - Cucujus clavipes
Turns out they are a species with extreme freezing tolerance. Which explains why it's one of the few bugs we've seen this spring.
Except for the flies. And those horrible Asian ladybugs. Both of which will survive the next global apocalypse, I'm sure.
Anyway, this red guy survives the cold by utilizing a series of antifreeze proteins in its body. Cool!