Scutellerid sp.
This is a shield-backed bug. They greatly resemble stink bugs. Most adults are 8- to 10-mm long and feed on plants. They can generally be found in fields, shrub-filled areas, and wood edges in areas with variable relative humidity from spring through fall. Shield-backed bugs get their name from the enlarged exoskeletal plate on their back, named a scutellum, that protects their wings and abdomen from predators and the environment.
Order: Hemiptera
Family: Scutelleridae
Photograph: © 2009 RKD Peterson
Date of Photograph: 28 August 2009
Location: Yellowstone National Park (44o54'48" N 110o43'57" W)