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D. beresi sp. n. and D. penthopitta are most probably two sister species derived from a common ancestor. Acknowledgements - Exploration of the invertebrate fauna of Maramures (Romania) carried out by the Hungarian Natural History Museum is supported by a Hungarian National R&D Programme (The origin and genesis of the fauna of the Carpathian Basin: diversity, biogeographical hotspots and nature conservation significance; project no: 3B023-0-4) and by the Hungarian Scientific Research Fund (OTKA grant No. T-034207). REFERENCES DLABOLA, J. 1954: Fauna CSR Svazek 1. Kfisi - Homoptera. - Práce Ceskoslovenské Akademie Véd (Sekce biologická), Praha, 339 pp. DLABOLA, J. 1980: Drei neue Diplocolenus-Arten und taxonomisch-zoogeographische Übersicht der Gattung in der Paläarktis. - Acta Faunistica Entomologica Musei Nationalis Pragae 16(185): 73-82. EMELJANOV, A. F. 1966: Novye palearkticheskic i nekotorye nearkticheskie cikadovye (Homoptera, Auchenorrhyncha). [New Palaearctic and certain Nearctic cicads (Homoptera: Auchenorrhyncha).] - Entomologicheskoe Obozrenie 45: 95-133. GlUSTINA, W. DELLA 1989: Homoptères Cicadellidae. Volume 3. - In: Faune de France. France et Iles Anglo-Normandes. 73. Institut National de la Recherche Agronomique, Paris, 353 pp. HAUPT, H. 1935: Unterordnung: Gleichflügler, Homoptera. - In: Die Tierwelt Mitteleuropas 10. Insekten. I. Teil. Verlag von Quelle & Meyer, Leipzig, pp. 115-262. HORVÁTH, G. 1884: Diagnoses Hemipterorum. - Természetrajzi Füzetek 8(4): 315-320. KNIGHT, W.J. 1974: The evolution of the Holarctic leafhopper genus Diplocolenus Ribaut, with descriptions and keys to subgenera and species (Homoptera: Cicadellidae). Bulletin of the British Museum (Natural History) (Entomology) 29: 357-413. KOLENATI, F. 1860: Einige neue Insekten-Arten vom Altvater. - Wiener Entomologische Monatsschrift 4: 381-391. LANG, V. 1947: Cikády psyllya molice jesenikü. [Cicads and psyllids from the Mt. Jesenik.] Folia Entomologica 10: 19-27. METCALF, Z. P. 1967: General catalogue of the Homoptera. Fascicle VI Cicadelloidea. Part 10. Euscelidae. Section II. - Agricultural Research Service, United States Department of Agriculture, Washington, D. C, pp. 1078-2074. NAST, J. 1938: Homopterologische Notizen. IV. Über Deltocephalus nigricans Kbm. - Annales Musei Zoologici Polonici 13: 163-165. NAST, J. 1972: Palaearctic Auchenorrhyncha (Homoptera) an annotated check list. - Polish Scientific Publishers, Warszawa, 550 pp. OROSZ, A. 2006: Contributions to the Auchenorrhyncha fauna of Maramures. - Studia Universitatis Vasile Goldis, Seria Stiintele Vietii 17(Supliment):' 95-99.