The Syrphidae of Puerto Rico

This paper presents results of a taxonomic investigation of the family Syrphidae of the order Diptera in Puerto Rico. A total of 58 species included in 11 genera are presently recorded as a result of synonymy, new records, and descriptions of the following four new species: Baccha ( Baccha ) martorelli, Baccha ( Ocyptamus ) medina, Baccha ( Baccha ) neoparvicornis and Baccha ( Ocyptamus ) vockerothi . Keys are given for the identification of the reported genera and for most of the recorded species.