Moths whose grubs feed on stored food – especially cereals, chocolate, cocoa,dried fruit, nuts and any sort of flour product.
Adults are mottled grey and brown. 10-15mm long. Larvae are dirty white with brown heads and grow up to 12-15mm long, spinning a light, matted webbing as they feed.
Both grubs and adults, therefore, can be pests in the kitchen, to which they may be introduced from shop or mill.