Indianmeal Moth Larva

Scientific Name: Plodia interpunctella

Order & Family: Lepidoptera, Pyralidae

Size: 12-13 mm (approx. 0.5 inches) at maturity

Indianmeal Moth Larva

Natural Habitat

Pantries, kitchens, and food processing facilities where dry goods are stored

Diet & Feeding

Dry food materials including grains, cereals, nuts, seeds, dried fruit, and pet food

Behavior Patterns

Larvae spin silken webs as they feed, often causing food to clump together; they leave the food source to pupate in wall crevices or ceiling corners

Risks & Benefits

A significant household and commercial pest that contaminates food with webbing and frass, but poses no direct physical harm to humans

Identified on: 1/4/2026