Scabies Mite (or Mite Molt/Crust)
Scientific Name: Sarcoptes scabiei var. hominis
Order & Family: Order: Sarcoptiformes, Family: Sarcoptidae
Size: Microscopic; adult females are 0.30–0.45 mm long and 0.25–0.35 mm wide; males are slightly smaller. The object in typical photos visible to the naked eye is often a clump of skin, mite debris, or a burrow entrance.
Natural Habitat
The epidermis (outer layer of skin) of humans and other mammals; they burrow into the skin to live and deposit eggs.
Diet & Feeding
They feed on human skin cells and lymph fluid found within the epidermis.
Behavior Patterns
These mites are obligate parasites that burrow into the upper layer of the skin, creating tunnel-like lines. Females lay eggs in these burrows. They are most active at night, which is when itching typically intensifies. They spread via prolonged direct skin-to-skin contact.
Risks & Benefits
Risks: Highly contagious and causes Scabies, a skin infestation characterized by intense itching and a pimple-like rash. Scratching can lead to secondary bacterial infections like impetigo. Benefits: None; they are parasitic pests.
Identified on: 3/5/2026