EN
Two new species of the genus Nyctelia Latreille (Pimeliinae: Nycteliini) from high mountains in central-western Argentina are described, N. nevadoensis sp. nov. and N. setipennis sp. nov. Distributional and habitat records and habitus photographs for these two new species are included, with comparisons to other known species of the genus. A discussion on the biogeography and the non sympatry with other species of Nyctelia of these two new species is presented. Lectotype is designated for Nyctelia alutacea Fairmaire, 1876.