Harris, Steven C.Holzenthal, Ralph W.2018-05-042018-05-041990Harris, S. C., & Holzenthal, R. W. (1990). Hydroptilidae (Trichoptera) from Costa Rica: the genus Mayatrichia Mosely. Journal of the New York Entomological Society, 98(4), 453-460.https://hdl.handle.net/11299/196331The genus Mayatrichia is represented in Costa Rica by three species, M. ayama Mosely, M. rualda Mosely, and M. illobia, new species. The new species, also known from Ecuador, is described and illustrated. Distribution records, maps, and a key are provided for known Costa Rican species of Mayatrichia.enArticle