Revision of the genus Rhinoprosopa
The New World flower fly genus Rhinoprosopa Hull, 1942 (Diptera: Syrphidae) is revised and two new species are described: R. hulli Mengual, new species (Costa Rica) and R. zophina Mengual, new species (Costa Rica). Diagnoses, illustrations, synonymies, and distributional data are given for all known species. An identification key to all seven species is also provided.