Synonyms and other taxonomic changes
Here used as Efferia sensu lato. Groups sometimes split out as separate genera (Albibarbefferia, Pogonioefferia, Nerax) are here included as groups of species under genus Efferia.
Explanation of Names
Author of genus is Coquillett, 1893. "Efferia" likely comes from Latin effere, to carry outward or away. Certainly these flies carry other insects away (Latin dictionary).
Numbers
Neartica lists 103 North American species.
Internet References
Giff Beaton's Robber Flies of the Southeast - has a great gallery for reference on Robberflies
Nearctica Robber flies lists subgroups as genera
Contributed by
Tony DiTerlizzi on 24 July, 2004 - 11:20am
Additional contributions by
cotinisLast updated 28 July, 2006 - 11:05pm