One of the largest in size of the grain infesting insects.
The cadelle adults and larvae attack grain kernels and destroy the germ. Females may lay up to 1,000 eggs in their lifetime. The eggs, laid in clusters in food materials, hatch in about 10 days and the young larvae begin feeding. The larval stage requires 2-14 months, and the larvae may reach 3/4 inch in length. Larvae bore into woody materials or timbers in grain bins or storerooms to pupate.
These insects should not be a serious problem in metal or concrete granaries.
