Three types, hitherto commonly known as varieties of Solcoptes scobiei (Linnaeus, 1758) were collected from scabietic patients, pigs and dogs to couirm their taxonomic status. As a result, we consider that the mites of human and pig scabies are different subspecies [S. scobiei scohiei (Linnaeus, 1758) and S. scobiei skis Megnin, 1880, respectively], and that of dog scabies is a different species, S. canis Gerlach, 1857. Infestation rate of human scabies in Korea peaked in 1981-1982 and showed nearly 10% of prevalence rate among outpatients of the dermatology clinic, but decreased dramatically during the past ten years and now lowered below 1% since 1990. On the other hand, dog scabies seems to be increasing recently. Key words: Human scabies, dog scabies, pig scabies, taxonomy, prevalence.