... It is description of Lycaena species (today within genus Plebejus and subgenus Agrodietus Hübner) dardanus by Freyara back in 1844 th year, based on material from Čvrsnica mountain. Since than, research and clear review of butterflies in Bosnia and Herzegovina are in continuity, starting with the paper of V. Apfelbeck over the papers of H. Rebela, R. Sijarića up till the papers of the author himself: Apfelbeck, 1892;Rebel, 1904, Sijarić, 1966, 1980Lelo, 1999Lelo, , 2000Lelo, , 2004Lelo, , 2007Lelo, , 2008Lelo, , 2012Lelo, , 2016 with sporadic investigations of diurnal butterflies by domestic researchers: Lelo, 2020;Lelo et al., 2021;Dukić, 2022, for example. Leptidea morsei Fenton, 1882 extends from Croatia through the central part of Eastern Europe to the central and southern Urals, and through southeastern Turkey, Altai, western Siberia all the way to Japan. ...