tăbānus, i, m.,
a gad-fly , horse-fly , oxfly , breese; called also asilus, Varr. R. R. 2, 5, 14; Plin. 11, 28, 34, § 100; 11, 33, 38, § 113; 30, 11, 30, § 101.
·noun A genus of blood sucking flies, including the horseflies. ...
Webster's Dictionary of the English Language