Literature
  • UK Biodiversity Group. 1995
  • Biodiversity: the UK steering group report- volume II: terrestrial and freshwater habitats action plans.
  • Ungricht, S., A. Müller, S. Dorn 2008
  • A taxonomic catalogue of the Palaearctic bees of the tribe Osmiini (Hymenoptera: Apoidea: Megachilidae). Zootaxa, 1865: 253 pp.
  • Ungricht, S., Müller, A. & Dorn, S. 2008
  • A taxonomic catalogue of the Palaearctic bees of the tribe Osmiini (Hymenoptera: Apoidea: Megachilidae). Zootaxa 1865; 1–253. http://www.atlashymenoptera.et/biblio/Ungricht_et_al_2008_Osmiini_Catalogue.pdf.
  • University of Mons. 2012
  • Atlas Hymenoptera - STEP Project. Available at: http://zoologie.umh.ac.be/hymenoptera/.