These small, shield shaped bugs are under an inch long, and most often green and brown in coloration. Native to east Asia, they were accidentally introduced to the United States and have become a serious agricultural concern. As their populations are increasing across the US, if you see them around you may want to get rid of them! Their impact on agriculture makes them particularly concerning if you grow plants, especially fruit.
Stink Bugs enter houses during winter to escape the cold, where they can live for months attacking house plants until winter has passed. They are notable for the mildly offensive odor they release when crushed or aggravated, from which they get their name.