Lohrmann, VolkerEngel, Michael S.2016-12-132016-12-132015-09-11Lohrmann V, Engel MS (2015) A quadriocellar scoliid wasp (Hymenoptera, Scoliidae) from Mallorca, with a brief account of supernumerary ocelli in insects. Zoosystematics and Evolution 91(2): 191-197. doi: 10.3897/zse.91.5463https://hdl.handle.net/1808/22189A remarkable teratological female of Megascolia (Regiscolia) maculata flavifrons (Fabricius, 1775) (Scoliidae: Scoliinae: Scoliini) with a supernumerary median ocellus is described and illustrated. While supernumerary ocelli have been reported before from Diptera, Orthoptera, and Hymenoptera, this is the first record of such a malformation from a scoliid wasp. Four other teratological scoliid wasps have been reported in the literature but all were gynandromorphs. A brief summary of known records of supernumerary ocelli among insects is provided.© 2015 Volker Lohrmann, Michael S. Engel.Median ocellusTwin OcellusBinary Anterior OcelliPara-median OcelliTeratologyAberrationMalformationMorphologyArticle10.3897/zse.91.5463openAccess