(D. Cappaert, MSU, at www.forestryimages.org)

Adults: Adult beetles are bright metallic green in color. Adults are one third inch long and one sixteenth inch wide. They have rounded abdomens and flat backs and are present from mid-May through late July.

(C. M. F. Pierce & M. A. McDonough
Indiana CAPS at www.entm.purdue.edu/CAPS)

(Pennsylvania DCNR at www.forestryimages.org)

Larva (immature): Larvae are creamy white and have flattened, segmented bodies. Older larvae grow up to an inch long. They feed under ash tree bark from mid-summer through spring, damaging the ash tree’s vascular tissue.