Mold Mite

Scientific Name: Tyrophagus putrescentiae

Order & Family: Sarcoptiformes / Acaridae

Size: 0.3 to 0.45 mm (visible as moving white dust)

Mold Mite

Natural Habitat

High humidity environments with mold or fungus growth, such as pantries, damp upholstery, or decaying organic material.

Diet & Feeding

Mycophagous; primarily feeds on fungi and molds, but can also consume high-protein and high-fat materials like grains, seeds, and cheese.

Behavior Patterns

Rapid reproduction in humidity above 60%. They aggregate in large numbers when food is abundant, appearing as a 'shimmering' dust or film on surfaces.

Risks & Benefits

They do not bite or sting humans, but their presence indicates a moisture/mold problem and they can cause allergic reactions, asthma, or dermatitis in sensitive individuals.

Identified on: 3/5/2026