Scabies Mite (or the skin condition Scabies)
Scientific Name: Sarcoptes scabiei var. hominis
Order & Family: Order: Sarcoptiformes, Family: Sarcoptidae
Size: Microscopic; females are 0.30–0.45 mm long, males are significantly smaller (0.20–0.30 mm). They are generally not visible to the naked eye.
Natural Habitat
The mite is an obligate parasite that specifically inhabits the epidermis (outer layer) of human skin. It burrows into the stratum corneum to live and deposit eggs.
Diet & Feeding
They feed on dissolved human tissues but do not feed on blood. The mites survive by consuming skin cells and lymph fluid found within the epidermis.
Behavior Patterns
The primary behavior involves the female mite burrowing under the skin to lay eggs, creating serpentine 'burrows' or tracks often visible on the skin surface. This activity triggers an intense allergic reaction (itching), particularly at night. The life cycle from egg to adult takes about 10-15 days.
Risks & Benefits
Risks: Causes intense itching, rash, and sores (often from scratching). Secondary bacterial infections (like impetigo or cellulitis) can occur if the skin is broken. Scabies is highly contagious via prolonged skin-to-skin contact. Benefits: None; this is a parasitic pest.
Identified on: 2/11/2026