[W Car.; cf. Brit. dial. North doctor horse-fly "Children used to catch a cleg and hold it on the back of the hand until it drew blood; in this way they were probably imitating the practice of blood-letting" EDD] n. the horse fly, a stinging insect (Tabanus sp.): 1910 Doctor flies . . .attack the feet and legs especially and inflict quite a painful wound (Northrop 16). = STINGING DOCTOR