Adult redshouldered stink bugs, Thyanta pallidovirens. The brown form is the overwintering coloration. The green form with reddish "shoulders" (front margins of the pronotum) is the summer coloration.

Two adult redshouldered stink bugs facing each other on a green leaf, with one green bug on the left with red along the edges of its shoulders and one brown bug on the right, both with shield-shaped bodies. Credit: Jack Kelly Clark — Adult redshouldered stink bugs, Thyanta pallidovirens. The brown form is the overwintering coloration. The green form with reddish "shoulders" (front margins of the pronotum) is the summer coloration. Credit: Jack Kelly Clark