Human itch mite (Scabies mite)

Burrows exclusively within the epidermal layer of human skin, particularly in skin folds, between fingers, wrists, and feet.

Feeds on skin cells, extracellular fluid, and tissue secretions of the human host.

Fertilized female mites burrow into the stratum corneum of the skin, creating serpentine tracks where they lay eggs over several weeks. Mites move faster in warm conditions and spread primarily through direct, prolonged skin-to-skin contact.

Causes scabies, a highly contagious skin condition characterized by severe itching (especially at night) and pimple-like rash. Secondary bacterial infections like impetigo can occur from scratching. Has no ecological benefits as an obligate human parasite.