The New World species of Europiella Reuter are revised. Three species from western North America are described as new. A key and illustrations of the habitus and male genitalia for the 13 recognized Nearctic species are provided. Scanning electron micrographs are given for structural details of four species. Detailed locality and host data are offered for all species. Europiella albipubescens Knight, 1968 is transferred to Knightopiella, new genus. Europiella lividella (Kerzhner, 1979) is returned to Plagiognathus Fieber.