Dichrorampha carpatalpina sp. n., is described from the Southern Carpathians (Romania). It is closely related to D. inconspiqua (Danilevsky, 1948) and D. podoliensis (Toll, 1942). Adults, male and female genitalia, the habitat of the new species are described and figured and some details of the biology are given. The larva and its host-plant, Achillea oxyloba schurii (Sch. Bip.) Heimerl, are illustrated. The species inhabits the north-facing slopes of the highest regions of the Carpathians. During their flight period from the beginning of July to the beginning of August the moths are on wing in the morning and only in sunny weather.