Human itch mite (Scabies mite)

Within the stratum corneum (outer layer) of human skin

Skin cells and extracellular fluid found in the epidermis

Obligate parasites that burrow into skin to live and deposit eggs, causing an allergic reaction in the host; they cannot fly or jump and are transmitted through prolonged skin-to-skin contact

Causes scabies, a contagious skin infestation characterized by intense itching and rashes; risk of secondary bacterial infections like impetigo or cellulitis from scratching; no known ecosystem benefits