Taxon - Odkazy a literatura
de Jong, Y.S.D.M. (ed.): Fauna Europaea 2.4 [http://www.faunaeur.org] [jako Olgia helena Beaumont, 1953]Datum citace: 9. březen 2012
de Jong, Y.S.D.M. (ed.): Fauna Europaea 2.4 [http://www.faunaeur.org] [jako Olgia helena Beaumont, 1953]