Adult (top) and mature nymph of the brown marmorated sting bug, Halyomorpha halys. Note the two white bands on the antennae, white bands on the legs, and the banded abdominal edge.

Characteristic features of BMSB, adult (top) and late-stage nymph (bottom). Note two white bands on antennae, bands on legs, and banded abdominal edge. Credit: Stephen Ausmus
Credit: Stephen Ausmus