<prompt> Black dot ring worm is caused by ?MicrosporumTrichophytonEpidermophytonCandida  <response>: Ans. is b i.e., Trichophyton . Black dot lesions are seen in Tinea capitis. . The hairs are broken at the level of the skin surface producing a picture of black dots in an area of alopecia. . T tonsurans is the chief cause of black dot tinea capitis. 