Mold Mite
Scientific Name: Tyrophagus putrescentiae
Order & Family: Order Sarcoptiformes, Family Acaridae
Size: 0.3 to 0.5 mm (microscopic without magnification)

Natural Habitat
Damp environments with high humidity, fungal growth, or rotting organic matter, often found in kitchens, bathrooms, or stored food products.
Diet & Feeding
Primarily feeds on mold, fungi, and yeast, but also consumes high-protein stored foods like cheese, seeds, and grains.
Behavior Patterns
They congregate in large numbers where moisture and food are present, appearing as 'moving dust'. They have a very rapid life cycle when conditions are warm and humid.
Risks & Benefits
They do not bite humans or pets but can cause 'grocer's itch' (allergic dermatitis) or respiratory allergies in sensitive individuals. They can contaminate food supplies.
Identified on: 5/26/2026