Key to 17 presently recognized genera of Leptogastrinae (Insecta: Diptera: Asilidae) of the world. Note that two entries are made for Leptogaster, i.e., Leptogaster sensu stricto restricted to the Nearctic and Palaearctic regions and Leptogaster sensu lato found world-wide. Version 2, Aug 2013.