to many in beetle family to remember. pretty sure its too big for boxelder. i had a spooky experience one night not too long ago. first close encounter with a locust. sob was size of a humming bird and sounded like one too. took half a can of dead bug to knock it out of air in shop.
Yeah,...it NOT a Box Elder bug. We have thousands of those around here (in my yard), and I've been spraying them all summer. I don't have any idea exactly what that is, but I've seen them before - quite common.