title: Mayflies of the Caucasus Mountains. IV. New species of the genusNigrobaetisNovikova & Kluge, 1987 (Ephemeroptera, Baetidae) from Georgia.
abstract: A new species of the genus Nigrobaetis Novikova & Kluge, 1987 is described based on larvae from the Caucasus Mountains. Nigrobaetis (Takobia) katerynae Martynov, sp. nov., is easily distinguishable from other Takobia species by the following combination of characters: the shapes of frontal suture, mandibles, labial palp, paraproctal prolongation, gills; the number of setal rows along the external margins of femora; the absence of gills on tergum I; and the colour pattern of body.
authors.affiliation: National Museum of Natural History, National Academy of Sciences of Ukraine, Bohdan Khmelnitsky str., 15, 01601 Kiev, Ukraine.. martynov_av@ukr.net.
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Martynov
authors.forename: Roman J
authors.initials: RJ
authors.lastname: Godunko
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures; D000818:Animals; D065133:Ephemeroptera; D005846:Georgia (Republic); D007814:Larva
keywords: Ephemeroptera, Nigrobaetis, Takobia, new species, Georgia, Caucasus