New and little known Florida Tabanidae.

As a result of net and trap collections of tabanids in Florida, a new species of Chrysops was found which is described from the adult female as C. ifasi sp.n.; males of other species of Chrysops, including C. abatus Philip and C. fulvistigma Hine, are described for the first time. Notes on status and distribution of these and another 12 species of Chrysops are given, and also new distribution records for 1 species of Hybomitra and 3 species of Tabanus. Anacimas geropogon Philip is shown to be a synonym of A. limbellatus End. Whitneyomyia beatifica var. atricorpus Philip is confirmed as a colour form. Among data on the systematic relationships of species of Tabanus, T. cayensis Fairchild is shown to be closely related to T. campechianus Tns. from Mexico.