Taxon profile
Links and literature
IUCN Red List of Threatened Species 2024-1 [19199230]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [as Hylaeus crassanus (Warncke, 1972)]
Data retrieved on: 29 January 2024
Ruggiero M. (ed) (2008): World Bee Checklist [http://www.itis.gov/beechecklist.html], ITIS [as Hylaeus crassanus (Warncke, 1972)]Data retrieved on: 10 April 2010
de Jong, Y.S.D.M. (ed.): Fauna Europaea 2.4 [http://www.faunaeur.org] [as Hylaeus crassanus Warncke, 1972]Data retrieved on: 9 March 2012