House Dust Mite
Scientific Name: Dermatophagoides pteronyssinus
Order & Family: Order: Sarcoptiformes, Family: Pyroglyphidae
Size: 0.2–0.3 mm in length

Natural Habitat
Found globally within human dwellings, specifically in soft materials like mattresses, pillows, upholstered furniture, and carpets.
Diet & Feeding
Feed primarily on detritus, specifically dander (dead skin scales) shed by humans and pets, as well as some fungal spores.
Behavior Patterns
Prefer high humidity and warm temperatures; they go through five life stages from egg to adult and are typically nocturnal in movement within microhabitats.
Risks & Benefits
Major source of allergens for humans; their feces and exoskeletons contain proteins that can trigger asthma, eczema, and allergic rhinitis.
Identified on: 12/28/2025