Bug Identifier
Indianmeal moth
Community identification

Indianmeal moth

Plodia interpunctella

Order & Family
Lepidoptera; Pyralidae
Size
Adults have a wingspan of about 14–20 mm (0.55–0.8 in) and are roughly 8–10 mm long at rest.
See this bug in the Encyclopedia

Natural Habitat

Common indoors near stored dry foods, pantries, kitchens, and food-processing areas; adults may rest on walls and doorframes.

Diet & Feeding

Larvae feed on grains, flour, cereals, nuts, dried fruit, pet food, seeds, and other dry goods. Adults do not feed and mainly reproduce.

Behavior Patterns

Adults are mostly nocturnal and weak fliers; females lay eggs near food, and larvae leave infested packages to pupate in cracks, corners, or ceilings. The reddish-brown and gray wing pattern is characteristic.

Risks & Benefits

They are harmless to people but contaminate stored food with webbing, frass, and cast skins. They provide minor food for predators but are primarily considered a household pantry pest.