Bug Identifier
Mold Mite
Community identification

Mold Mite

Tyrophagus putrescentiae

Order & Family
Sarcoptiformes: Acaridae
Size
0.3–0.5 mm (nearly microscopic to the naked eye)
See this bug in the Encyclopedia

Natural Habitat

High moisture environments with mold or fungi, including pantries, kitchens, damp basements, and stored food products.

Diet & Feeding

Primarily feeds on mold, fungi, and products rich in fat and protein such as grains, seeds, cheese, and dried meats.

Behavior Patterns

They undergo a rapid life cycle in humid conditions (above 60% RH). When populations explode, they appear as a moving 'dust' or light-colored fuzz on surfaces.

Risks & Benefits

Non-biting and generally harmless to structure, but can cause 'grocer's itch' (allergic dermatitis) or respiratory irritation in sensitive individuals. They indicate a moisture or mold problem that needs addressing.