Mold Mite

Scientific Name: Tyrophagus putrescentiae

Order & Family: Order: Sarcoptiformes; Family: Acaridae

Size: 0.3 - 0.5 mm (nearly microscopic, appearing as tiny white moving specks)

Mold Mite

Natural Habitat

High humidity environments, kitchens, pantries, and damp basements where mold or fungi are present.

Diet & Feeding

Primarily feeds on mold, fungi, and occasionally organic materials high in fat and protein such as seeds, nuts, and cheeses.

Behavior Patterns

They reproduce rapidly in warm, moist conditions. They are often noticed when they congregate in large numbers on dark surfaces, creating what looks like "moving dust."

Risks & Benefits

They do not bite humans or pets but can cause allergic reactions (dermatitis or respiratory issues) in sensitive individuals. They may also contaminate food sources. They serve as a sign of underlying moisture or mold issues in a building.

Identified on: 4/15/2026