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, males are about half that size.

Scabies Mite

Natural Habitat

The epidermis (upper layer) of human skin, particularly in warm folds like between fingers, wrists, elbows, and armpits.

Diet & Feeding

Tissue fluid and skin cells; they burrow into the skin to feed and lay eggs.

Behavior Patterns

These mites are obligate parasites. Females burrow into the stratum corneum of the skin to lay eggs, creating characteristic serpentine burrows. This activity triggers an intense immune response causing severe itching, which is often worse at night.

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 ecosystem; they are strictly parasitic.

Identified on: 3/3/2026