The rice weevil is a small dark brown weevil with a long snout, and small round dimples on the thorax and ridges along the wing covers. There are two paler reddish brown patches at each end of the wing covers (four spots altogether). The head and thorax is nearly as long as the wing covers. It is similar to the granary weevil (Sitophilus granarius) which is slightly larger and has plain brown wing covers and oval dimples on the thorax. The granary weevil is wingless whereas the rice weevil has wings and can fly. The larvae are white or creamy white grubs with a small light brown head.