House dust mite

Natural Habitat

Indoor environments, specifically fibrous materials like mattresses, pillows, carpets, and upholstered furniture.

Diet & Feeding

Primary diet consists of skin scales (dander) shed by humans and pets, as well as some mold.

Behavior Patterns

They thrive in warm, humid conditions (65-80% humidity). They are microscopic and photophobic, meaning they move away from light into deep fibers.

Risks & Benefits

Major risk: Their waste products (feces) and exoskeletons contain proteins that are potent allergens, causing asthma, eczema, and allergic rhinitis in sensitive individuals. They offer no known benefits to the ecosystem.

Identified on: 3/5/2026