Mold Mite (likely)

Scientific Name: Acarus siro (or similar species in Acaridae family)

Order & Family: Acari, Acaridae

Size: 0.3 - 0.7 mm

Mold Mite (likely)

Natural Habitat

Damp, humid environments rich in decaying organic matter, molds, fungi, grain stores, food spoilage, dusty areas.

Diet & Feeding

Feeds on fungi, mold, yeast, decaying plant material, grains, cheese, and various stored food products.

Behavior Patterns

Mold mites are often found in large aggregations. They thrive in high humidity and moderate temperatures. They are not typically parasitic on humans or animals, but can infest food and feed on its surface mold. Their life cycle is relatively short, and populations can explode rapidly under favorable conditions.

Risks & Benefits

Potential risks include causing allergic reactions (dermatitis, asthma) in sensitive individuals, contaminating and spoiling stored food products (grains, cheese, dried foods), and serving as a vector for certain fungal spores. They are primarily a pest in household and agricultural settings. There are no known significant benefits.

Identified on: 9/17/2025