The Disphragis notabilis (Schaus) species-group in Costa Rica (Lepidoptera, Notodontidae)

The four described taxa in the Disphragis notabilis (Schaus) species-group are reviewed, including the types and their dissected genitalia. Disphragis hemicera (Schaus), stat. rev., is elevated to species rank, D. normula (Dognin) is retained as a synonym of D. notabilis, D. sobolis Miller is confirmed as distinct from D. hemicera, and D. bifurcata sp. n., is newly described. Both D. hemicera and D. bifurcata occur in Costa Rica. The known ranges of the other species are outlined. Defining characters of each species are presented and a key to species is provided. Unusual variation in the genitalia is noted.