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Published online by Cambridge University Press: 31 May 2012
Nine new species of Dichrooscytus Fieber are described from North America: aztecus and toltecus from Puebla, and mexicanus from Durango and Coahuila, Mexico; longirostris, ochreus, and rubromaculatus from California, brevirostris and dentatus from Arizona, and alpinus from Colorado. Male genitalia are illustrated, host plants are given, and relationships to other species in the genus are discussed.