Revisionary notes on the genus Paraphysifer Sinaiko & Dietrich, 2020 (Auchenorrhyncha: Cicadellidae: Deltocephalinae) Author Gnezdilov, Vladimir M. 0000-0002-7331-8744 Zoological Institute, Russian Academy of Sciences, 1 Universitetskaya Emb., Saint Petersburg 199034, Russia. Vladimir. Gnezdilov @ zin. ru; vmgnezdilov @ mail. ru; https: // orcid. org / 0000 - 0002 - 7331 - 8744 nezdilov@zin.ru Author Sinaiko, Guy School of Zoology, Tel-Aviv University, Tel-Aviv 6997801, Israel text Zootaxa 2023 2023-03-10 5254 2 295 300 http://dx.doi.org/10.11646/zootaxa.5254.2.9 journal article 233390 10.11646/zootaxa.5254.2.9 b9f776a9-c390-4f22-9392-1afa6e9f8d6d 1175-5326 7727515 A86C7AF5-C6C0-40E4-AEF9-BA2F2A711EAD Paraphysifer pictipennis ( Kirschbaum, 1868 ), comb. n. ( Figs. 1 , 2D ) Jassus (Deltocephalus) pictipennis Kirschbaum, 1868: 125 . Psammotettix pictipennis : Dlabola, 1954: 210 , figs 1373–1375. Psammotettix pictipennis : Emeljanov, 1964: 424 , figs 21, 22. Psammotettix pictipennis : Dubovsky, 1966: 203 , fig. 69, 4–6 . Psammotettix pictipennis : Mitjaev, 1971: 175 , fig. 64, 3 , 4 . Psammotettix pictipennis : Logvinenko, 1978: 805 , figs 41–45. Paraphysifer wilsoni Sinaiko & Dietrich, 2020: 391 , figs 1–3, syn. n. Note. The species was described from Austria ( Kirschbaum, 1868 ) where it is very rare now and found only in Eastern part of the country in Neusliedlersee National Park ( Holzinger & Fröhlich, 2006 ). Currently it is widely distributed in the Palaearctic region from Europe to northwestern China ( Nast, 1972 ; Mitjaev, 2002 ; Mitjaev & Huang, 1995 ) living on Aeluropus littoralis and Alopecurus sp. (Poaceae) ( Emeljanov, 1964 ; Mitjaev, 1971 , 2002 ; Tishechkin, 2000 ). Comparisons of type specimens of P. wilsoni from Israel to specimens of P. pictipennis from various parts of its known range in the collection of the Zoological Institute, Russian Academy of Sciences (St. Petersburg) indicate that these species cannot be distinguished morphologically and should be treated as synonyms. The two species share the same shape of sac-like aedeagus with equally broad dorsal and ventral lobes. They also share the presence of a fully articulated paraphysis bearing a dorsal extension which is strongly produced and elongated posteriorly, ending in a sharp tip, and the same sharply produced edge of male subgenital plates. They also display the same coloration scheme, as described and illustrated by Sinaiko & Dietrich (2020) . Linnavuori (1962) included P. pictipennis in his checklist of the leafhoppers of Israel , suggesting that the type series of P. wilsoni belongs to the same population of P. pictipennis studied by Linnavuori, but we were unable to examine these specimens.