Mold Mite

Scientific Name: Tyrophagus putrescentiae

Order & Family: Sarcoptiformes / Acaridae

Size: 0.3 to 0.5 mm (nearly microscopic, appearing as moving white dust)

Mold Mite

Natural Habitat

High humidity environments with or without visible mold; commonly found in kitchens, pantries, and damp areas on organic materials.

Diet & Feeding

Primarily feeds on mold, fungi, and high-protein/fat stored foods like seeds, grains, and dried meats.

Behavior Patterns

They reproduce rapidly in warm, moist conditions. They are often noticed when they congregate in large numbers on dark surfaces, looking like a dusty film that moves.

Risks & Benefits

They do not bite or sting but can cause skin irritation (dermatitis) or respiratory allergies in some people. They are a nuisance pest that indicates high humidity or mold issues.

Identified on: 3/13/2026