Ophyiulus major Bigler, 1920 has been regarded as a subspecies or synonym of pilosus by several
authors, e.g., Attems (1927, as O. fallax lobatus) and Pedroli-Christen (1993). Due to difficulties in
distinguishing major from ‘true’ pilosus the map combines records of both nominal taxa. Specific
records of major are available from Switzerland (Bigler’s original locus typicus), Germany (southern
Bavaria), Austria and Slovenia as well as the northern half of Italy and Croatia. It would be useful if
genetic studies were performed on this group in order to settle the synonymy.