Euschistus obscurus, commonly known as the dusky stink bug, is a species of insect belonging to the family Pentatomidae. It is found in North America, particularly in the eastern and central regions. This insect is characterized by its dark brown or black coloration, reaching a length of about 1 centimeter. Like other stink bugs, Euschistus obscurus emits a foul odor as a defense mechanism when threatened.