Appearance: Flattened, oblong and reddish-brown; about one-seventh inch long; larvae are one-fourth inch long and are white to yellow.
Habits: Infest stored grain and grain products; small size enables them to work themselves into many sealed containers.
Diet: Feed on a variety of foods, but most commonly flour and cereal products.
Reproduction: Females lay an average of 300 to 400 eggs; life cycle usually takes about seven weeks, but may last up to three months; four or five generations per year.
Other Information: Attracted to light, but quickly run for cover when disturbed; adults may live as long as three years; impart a disagreeable odor and taste to the flour they infest.