Sunn pests are grain insect pests belonging to several genera of the 'shield bug' family Scutelleridae, with the species Eurygaster integriceps being the most economically important. Sunn pests are found in parts of North Africa, throughout West Asia and many of the new independent states of Central Asia.

The Pentatomoidea are a superfamily of insects in the suborder Heteroptera of the order Hemiptera. As hemipterans, they possess a common arrangement of sucking mouthparts. The roughly 7000 species under Pentatomoidea are divided into 21 families. Among these are the stink bugs and shield bugs, jewel bugs, giant shield bugs, and burrower bugs.