We review the North American cicada fauna providing information on synonymies, type localities, and type material. There are 170 species and 21 subspecies found in continental North America north of Mexico. The species represent 16 genera from eight tribes in three subfamilies within the family Cicadidae. The following six new synonymies are made: Tibicen ochreopterus (Uhler) into Diceroprocta cintifera cinctifera (Uhler), D. semicincta nigricans Davis into D. semicincata (Davis), Tibicen linnet var.__(F.) into T. linnei (Smith and Grossbeck), Platypedia gressiti Kato and Platypedia minsi Johnson and Leydig into P. minor Uhler, Okanagana consobrina Distant into Okanagana vanduzeei, and Okanagana striatipes beameri into Okanagana hesperia (Uhler). Okanagana rotundifrons Davis is transferred to Clidophleps rotundifrons n. comb. Seventeen species are removed from the fauna of North America north of Mexico.