Sitophilus species These pantry pests include the granary weevil and the rice weevil. They usually damage whole grains but occasionally infest flour and other broken or processed grain products. The adult weevils lay eggs inside grain kernels. Larvae that hatch from the eggs mature inside the kernels, pupate, and emerge as adult weevils. The adults wander about and are often seen far from the site of infestation.
Discard all infested food. Clean out cupboards thoroughly before restocking. Keep foods in airtight glass, plastic, or metal containers. Avoid buying broken packages, which are more likely to be infested.