
Community identification
Human Itch Mite
Sarcoptes scabiei var. hominis
- Order & Family
- Sarcoptiformes; Sarcoptidae
- Size
- 0.3 to 0.45 mm for females; males are roughly half that size.
Natural Habitat
Found exclusively within the epidermal layers of human skin, particularly in areas like webbing between fingers, wrists, and elbows.
Diet & Feeding
Feeds on human skin cells and dissolved tissue fluid (extracellular fluid) created by their burrowing action.
Behavior Patterns
Fertilized females burrow into the stratum corneum of the skin, laying 2-3 eggs daily. They are most active at night, which is when the characteristic itching is most severe.
Risks & Benefits
Causes Scabies, a highly contagious skin infestation characterized by intense itching and rashes. They pose no benefits to the ecosystem and are considered a significant medical parasite.