Taxon - Links and literature
de Jong, Y.S.D.M. (ed.): Fauna Europaea 2.4 [http://www.faunaeur.org] [as Crabro occultus Fabricius, 1804]Data retrieved on: 9 March 2012
de Jong, Y.S.D.M. (ed.): Fauna Europaea 2.4 [http://www.faunaeur.org] [as Crabro occultus Fabricius, 1804]