Stored Food Beetles are usually brought into the home in an infested package of food. Initially, infestations are difficult to detect because the insects involved are quite small, especially in the egg and larval stages.
The most common insects infesting food in your home are in the insect orders Coleoptera (beetles). Beetle larvae are either grublike and legless or have only three pairs of legs, all located close to the head. Both larvae and adults of beetles feed on foodstuffs.