The genus Euceratia is reviewed by the re-descriptions of two known species, E. castella and E. securella, and the description of a new species from California, E. intermedia n. sp. Euceratia is compared to other genera of Ypsolophidae. Diagnostic characters are provided for the three species of Euceratia and their distribution in the Nearctic Region is discussed. Imagoes and genitalia of all the species of Euceratia are illustrated.
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