Kathryn Schulz describes these horrifying species:
Of the five-thousand-odd species of stinkbug in the world, the brown marmorated kind is the most destructive, the most annoying, and possibly the ugliest. It is roughly the size of a dime, although thicker, but its head is unusually small, even for an insect, which gives it an appropriately thuggish look. Its six legs prop its shield-shaped body up in the air, as if they were pallbearers at the funeral of a Knight Templar. Its antennae are striped with bands of dark and light, while its eyes, should you get close enough to gaze into them, are the vivid red of an alarm clock at night. The “marmorated” in its name means “marbled,” but “mottled” is closer to the truth. Entomologists, who have a color palette as elaborate as Benjamin Moore’s, describe the underside of its body as “distinctly pale luteous” and the topside as “generally brownish cinereous, but also greyish ochraceous, ochraceous, testaceous, or castaneous.” To everyone else, it looks as dull brown as its own frass, the technical term for insect excrement.
They could be anywhere in your house. Schulz writes:
One poor soul spooned up a stinkbug that had blended into her granola, putting her off fruit-and-nut cereals for life. Another discovered too late that a stinkbug had percolated in her coffeemaker, along with her morning brew. A third removed a turkey from the oven on Thanksgiving Day and discovered a cooked stinkbug at the bottom of the roasting pan. Other people have reported accidentally ingesting stinkbugs in, among other things, salads, berries, raisin bran, applesauce, and chili. By all accounts, the bugs release their stink upon being crunched, and taste pretty much the way they smell. (They are also occasionally eaten by household pets, though seldom twice. One of my cats recently ate two at once, and promptly vomited them up.)