They cannot fly, but run quickly large distances and can easily enter packaged food. Attacks damaged grain kernels worldwide. Flattened, brownish color, long antennas. Eggs are laid randomly on broken grains. Larvae are mobile, feed mostly on kernels.
Adults live for around nine months, feeding on meals, flours and broken grains.
They can fly and run very quickly. It has oval shape, short hairs and reddish-grey antennae. Eggs are laid loose or on seed cracks. Larvae enter the grains where they develop. Adults do not feed and are short-lived.