House dust mite – Wikipedia

House dust mites, due to their very small size and translucent bodies, are barely visible to the unaided eye. A typical house dust mite measures 0.2–0.3 mm in length. The body of the house dust mite has a striated cuticle.. Diet. They feed on skin flakes from humans and other animals, and on some mold. Dermatophagoides farinae fungal food choices in 16 tested species commonly found in homes …

https://en.wikipedia.org/wiki/House_dust_mite