House dust mite
Scientific Name: Dermatophagoides pteronyssinus
Order & Family: Order: Sarcoptiformes Family: Pyroglyphidae
Size: 0.2 to 0.3 millimeters in length
Natural Habitat
Indoors, primarily in textiles such as mattresses, pillows, carpets, and upholstered furniture.
Diet & Feeding
Feed on organic detritus, specifically flakes of shed human and animal skin (dander).
Behavior Patterns
Prefer humid environments (above 50% relative humidity) and dark areas. They do not drink water but absorb moisture from the air.
Risks & Benefits
A major source of allergens; their waste products and carcasses can trigger asthma, eczema, and allergic rhinitis in sensitive individuals.
Identified on: 1/8/2026