This is the family stinkbug, Bob. “How large is this magnificent arctic stinkbug crawling toward the backyard hammock?” you ask. Oh ho, quite small, of course, and photographed here on the kitchen window.
Bob has been wintering with us all season. He was commonly seen in the upstairs bathroom but has, of late, been venturing downstairs. We cannot let him out because of the cold, and because we would miss him, and he us.