Omnivorous leafroller adults are small brown moths, about 0.4 inch (10 mm) long, with a snoutlike projection (palpae) that protrudes forward from the head. The portion of the wings nearest the body is a dark rusty brown color; the outer half is light tan. A small rusty brown spot occurs on the front edge of the wing. When at rest, the wings form a bell-shaped pattern. Females lay the small, elliptical eggs in clusters on the smooth surfaces of leaves and stems, overlapping them like fish scales. At hatching, larvae are about 0.06 inch (1.5 mm) long and white with light tan head capsules and thoracic shields. Middle instars are cream-colored and possess dark heads. Mature larvae are about 0.5 inch (12 mm) long and vary in color from cream to a dark brownish green depending on their diet. They have few setae (bristlelike hairs) scattered over the body and possess whitish oval spots along either side of a dark line running down the middle of the dorsum. The head capsule and thoracic shield of mature larvae is brown. When disturbed, larvae retreat into their nests or wiggle vigorously and drop to the ground on a silk thread.