Two new Elachista species (Lepidoptera, Elachistidae) from the Polar Urals region, Russia

Two new species of Ehchista (Lepidoptera, Elachistidae) are described on the basis of material collected from the Sob River valley in the Polar Urals, and in the vicinity of Labytnangi on the shores of the Ob River: Elachista jaskai sp. n., which is assigned to fhe Elachista bifasciella group, and Elachista ripula sp. n., related to Elachista triatomea in the Elachista argentella group. E. ripula sp.n.is also reported from northern Finland. Diagnostic characteristics for the new species are given. Photographs of the habitus and genitalia are provided for the new species