The American genera of Asilidae (Diptera): keys for identification with an atlas of female Spermathecae and other morphological details. IX.2. subfamily Asilinae leach - Efferia -group, with the proposal of five new genera and a catalogue of the neotropical species

A key is given for the identification of the 11 American genera of the Efferia-group of Asilinae (Asilidae), also a catalogue of the neotropical species. The following genera are proposed as new: Albibarbefferia (type-species, Erax albibarbis Macquart, 1838); Aridefferia (type-species, Erax aridus Williston, 1893); Carinefferia (type-species, Erax carinatus Bellardi, 1861); Pogoniefferia (type-species, Asilus pogonias Wiedemann, 1821);and Tuberculefferia (type-species, Erax tuberculatus Coquillett, 1904)