Most adult sap beetles are small, between 1/8 and 1/4 inch long, and oval in shape. Stelidota geminata adults are the smallest (< 1/8 inch long), oval-shaped, and mottled brown in color. Carpophilus lugubris adults are 1/8-inch long with short wing covers and are uniform dull black in color. Glischrochilus quadrisignatus adults are the largest (1/4-inch long), and are black with four orange-rust spots on the wing covers.