Indian meal moth adults have a 5/8th-inch wingspread. The wings are burnished copper, almost purple color with a broad gray band near where they attach to the body. The larvae are small caterpillars with distinct on the first three body segments and four pairs of prolegs (false legs) on the abdomen. They are dirty white, pink, brown, or light green and range from 3/8-inch to ¾-inch long. The head and first body segment are brown.