The species groups of the subgenus Forcipomyia (Forcipomyia) in the Neotropics, with a description of a new species of the Genualis group (Diptera : Ceratopogonidae)

The Neotropical species of the subgenus Forcipomyia (Forcipomyia) are arran ged in five species groups, the previously known argenteola group plus the following four herein recognized:fusca, genualis, poulaineae and squamitibi a. A key to groups is presented, and diagnoses and included species for eac h one are provided. Furthermore, a new species of the genualis group, F. (F .) guarani n. sp. from northeastern Argentina, Paraguay and northwestern Ur uguay is described and illustrated.