Insects. Adult moths have wings and fly. Most damage is done by larvae (wormlike immature moths). Common types: Indian Meal Moth larvae eat and spoil a variety of grains and other foods. Clothes Moth larvae eat some materials, especially if already damaged.
The webbing clothes moth, Tineola bisselliella, and the casemaking clothes moth, Tinea pellionella, are occasional fabric pests in California. Clothes moths are weak flyers and are not attracted to lights. They tend to hide when disturbed, and for this reason, infestations of clothes moths are not usually noticed until damaged fabrics, furs, or feathers are found. Close examination of the objects reveals the presence of silken webs that are spun by the larvae.
Indian Meal Moth
The Indian meal moth, Plodia interpunctella (Hubner) is one of the most commonly reported pests of stored grains in the United States. In Pennsylvania it is not a major problem, but can be troublesome occasionally. Larvae of the Indian meal moth feed upon grains, grain products, dried fruits, nuts, cereals, and a variety of processed food products. The Indian meal moth is also a common pantry pest.