Mold Mite
Scientific Name: Tyrophagus putrescentiae
Order & Family: Order: Sarcoptiformes, Family: Acaridae
Size: 0.3 to 0.45 mm (extremely small, often appearing as tiny white moving specks).
Natural Habitat
High-humidity environments, organic matter with mold or fungal growth, kitchens, pantries, and damp areas within buildings.
Diet & Feeding
Mycetophagous; primarily feeds on fungi (mold), yeast, and decaying organic matter rich in proteins and fats like cheese and grain.
Behavior Patterns
They congregate in large numbers on food sources when humidity is high. They undergo four life stages: egg, larva, nymph, and adult, and can reproduce rapidly under ideal conditions (70% humidity or higher).
Risks & Benefits
Risks include potential allergic reactions (asthma or dermatitis) in sensitive humans and contamination of food supplies. They do not bite but are indicators of excess moisture and mold growth in the home.
Identified on: 3/25/2026