There are some very small ants, but they are not quite microscopic. The smallest known ant is the tiny worker of the species Carebara bruni, only eight-tenths of a millimeter long. There are much smaller insects, notably the delicate wasps called fairyflies in the family Mymaridae. One of them, Kikiki huna, is believed to be the smallest flying insect, with a body length as short as about 160 micrometers in some females. (A human hair is 100 to 180 micrometers in diameter.) Some well-known microscopic bugs are even smaller, like Sarcoptes scabiei, the so-called human itch mite that causes the skin inflammation scabies, and Demodex folliculorum, the follicle mites that infest human eyelash follicles.