Wingless females, the most commonly seen forms, are about 2 mm long and pale yellow to bluish green with a dark green stripe down the back.
Winged females are about the same color but are slightly smaller.
Males have wings and are very rarely seen. Nymph - The pale green nymphs are wingless and smaller than adults. In this country, they are particularly damaging in the central states from Texas into North Dakota and Minnesota. Although greenbugs occur in North Carolina, damaging infestations are rare. The greenbug is a particularly serious pest of wheat, barley, oats, and rye.