Stink bugs generally do not bite humans, as most species are herbivorous and have mouth parts designed for sucking juices from plants. Other species of stink bug are carnivorous and feed on insect pests such as caterpillars and Japanese beetles.
Stink bugs have a shield-shaped body that is typically brown or green in color and approximately 1/2 of an inch in length. When disturbed, the stink bug can emit a pungent odor from pores located in its thorax. Some humans may actually find the smell pleasant due to a genetic difference. In the spring, stinkbugs are common invaders of households. Closing windows and sealing cracks and other openings are effective measures in preventing stinkbug invasion.