Granary weevil: A true weevil that is among the most destructive of all insects in stored grain and that is the culprit responsible for a disease called miller's lung.

The weevil larvae develop inside kernels of whole grain in storage, making an infestation difficult to remove in the milling process. Therefore, the granary weevil is largely a pest of stored wheat, corn and barley, especially in elevators, mills and bulk storages. The adult cannot fly, and field infestations do not occur.

The granary weevil is also known as the wheat weevil or Sitophilus granarius. For more information, see: Miller's lung.