Scabies Mite
Scientific Name: Sarcoptes scabiei var. hominis
Order & Family: Sarcoptiformes / Sarcoptidae
Size: Microscopic; females are 0.30–0.45 mm long and 0.25–0.35 mm wide, while males are slightly smaller.
Natural Habitat
The mite burrows into the upper layer of human skin (epidermis). It cannot survive for long (usually less than 3-4 days) away from a human host.
Diet & Feeding
They feed on human skin cells and fluids found within the epidermis.
Behavior Patterns
Female mites burrow into the skin to lay eggs, creating serpentine tunnels. The eggs hatch into larvae in 3-4 days. The entire life cycle takes about 10-17 days. They are most active and itchy at night.
Risks & Benefits
Risks: Causes scabies, an intensely itchy skin infestation. The itching is an allergic reaction to the mites, their eggs, and waste. Scratching can lead to secondary bacterial skin infections like impetigo. Benefits: None known to humans or the ecosystem.
Identified on: 2/25/2026