Taxonomic revision of the genus Chaetocnemistoptera Borgmeier (Diptera: Phoridae), with the description of five new species

The Neotropical genus Chaetocnemistoptera is herein revised. Five new species are described-C. lobata, sp. nov., C. magdalena, sp. nov., C. phaeonota, sp. nov., C. pityropyga, sp. nov., C. trichopoda, sp. nov. The hypopygia of the previously described Chaetocnemistoptera palpalis (Borgmeier) and C. formosa (Borgmeier) are illustrated. The female holotype of Chaetocnemistoptera semifurcata (Borgmeier) could not be associated with any male specimen. A species identification key is provided and comments on the homology of structures and on species relationships are made.