Mold Mite (also known as Grain Mite or Tyroglyphid Mite)
Scientific Name: Tyrophagus putrescentiae
Order & Family: Order: Sarcoptiformes; Family: Acaridae
Size: 0.3 to 0.5 millimeters (nearly microscopic)
Natural Habitat
Humid environments, damp organic matter, stored food products, and homes with high moisture/mold growth.
Diet & Feeding
Fungi, molds, yeasts, and organic materials rich in protein and fat such as grains, seeds, and cheese.
Behavior Patterns
Rapid reproduction in high humidity (above 65%). They are often seen as moving white dust on surfaces. They do not bite but can proliferate quickly in damp areas.
Risks & Benefits
Can cause allergic reactions (dermatitis or respiratory issues) in sensitive individuals; they are a nuisance pest that indicates high humidity or mold issues but do not cause structural damage.
Identified on: 6/23/2026