Scabies Mite
Scientific Name: Sarcoptes scabiei var. hominis
Order & Family: Order: Sarcoptiformes, Family: Sarcoptidae
Size: Microscopic; females are 0.3mm to 0.45mm long, while males are smaller, about half that size. They are generally not visible to the naked eye.
Natural Habitat
The epidermis (upper layer) of human skin. They prefer warm, moist areas like skin folds, between fingers, wrists, armpits, and the genital area.
Diet & Feeding
They do not feed in the traditional sense; they burrow into the skin to lay eggs and feed on dissolved tissues and lymph occurring from their activity.
Behavior Patterns
These mites are obligate parasites. The female mite burrows into the stratum corneum of the skin to lay eggs (2-3 per day). The burrowing causes intense itching, especially at night. The life cycle involves egg, larva, nymph, and adult stages.
Risks & Benefits
Risk: Causes scabies, a highly contagious skin infestation characterized by intense itching and a pimple-like rash. Scratching can lead to secondary bacterial infections like impetigo. Benefit: None to humans or the general ecosystem (parasitic).
Identified on: 2/23/2026