Bueno-Soria, JoaquinHolzenthal, Ralph W.2017-12-282017-12-282008Bueno-Soria, J., & Holzenthal, R. (2008). The genus Ochrotrichia Mosely (Trichoptera : Hydroptilidae) in Costa Rica, with the description of four new species. Zootaxa, (1763), 41-54.https://hdl.handle.net/11299/192296Four new species of the genus Ochrotrichia Mosely, are described from Costa Rica and the male genitalia figured (Ochrotrichia avicula new species, Ochrotrichia conformalis new species, Ochrotrichia jolandae new species, and Ochrotrichia quasi new species). Twenty-five species are recorded from Costa Rica, 8 for the first time [O. aldama (Mosely), O. arranca (Mosely), O. assita Bueno-Soria & Holzenthal, O. caimita Flint, O. glabra Bueno-Soria & Santiago-Fragoso, O. hondurenia Bueno-Soria & Santiago-Fragoso, O. panamensis Flint, and O. tagala Flint] and new distributional records are listed. Ochrotrichia arranca (Mosely) is refigured and compared with O. conformalis, new species and O. quasi, new species.enTrichopteraHydroptilidaeOchrotrichiaCosta RicaArticle