Indian Meal Moth
Scientific Name: Plodia interpunctella
Order & Family: Lepidoptera, Pyralidae
Size: Wingspan of 16-20 mm (5/8 to 3/4 inch); body length of about 8-10 mm.

Natural Habitat
Worldwide common household pest found in pantries, food storage facilities, and grocery stores where dried food products are stored.
Diet & Feeding
Larvae feed on dried grain products including cereal, flour, cornmeal, crackers, chocolate, nuts, dried fruit, and pet food. Adults do not feed.
Behavior Patterns
Primarily nocturnal and attracted to light. Larvae spin silken webs in food sources as they feed. Life cycle from egg to adult can be completed in 27 to 305 days depending on temperature and food quality.
Risks & Benefits
Significant economic pest causing food spoilage and contamination through silk webbing, frass (excrement), and cast skins. They do not bite or sting and are not known to transmit diseases, but infestation requires disposal of contaminated food.
Identified on: 6/25/2026