Bug Identifier
Meal Moth
Community identification

Meal Moth

Pyralis farinalis

Order & Family
Lepidoptera: Pyralidae
Size
Wingspan typically between 18 to 30 millimeters
See this bug in the Encyclopedia

Natural Habitat

Typically found in indoor environments like granaries, mills, barns, and homes, specifically in pantries or areas where grains are stored. They favor damp conditions.

Diet & Feeding

Larvae feed on stored grain products, flour, cereals, bran, corn meal, pasta, and sometimes hay or dried herbal materials.

Behavior Patterns

Adults are nocturnal and attracted to light. The distinctive resting posture involves holding the abdomen curved upward at a 90-degree angle, although often they rest flat with wings spread in a triangular shape showing a distinct banding pattern (light brown in the center, dark brown on the ends) separated by white wavy lines.

Risks & Benefits

They are a pantry pest; the larvae can infest and contaminate stored food products with webbing and frass, rendering food inedible. They are not harmful to humans directly (they do not bite or sting) but cause economic loss through food spoilage.