Literature
Auteur(s) Nieto, A., Roberts, S.P.M., Kemp, J., Rasmont, P., Kuhlmann, M., García Criado, M., Biesmeijer, J.C., Bogusch, P., Dathe, H.H., De la Rúa, P., De Meulemeester, T., Dehon, M., Dewulf, A., Ortiz-Sánchez, F.J., Lhomme, P., Pauly, A., Potts, S.G., Praz, C., Quaranta, M., Radchenko, V.G., Scheuchl, E., Smit, J., Straka, J., Terzo, M., Tomozii, B., Window, J. and Michez, D.
Jaar 2014
Titel European Red List of bees. Luxembourg: Publication Office of the European Union.Tomozei, B., 2008 - Checklist of Bees of the genera Colletes Latreille 1930 and Hylaeus Fabricius 1793 of Romania (Hymenoptera: Apiformes: Colletidae) Faunistic Entomology – Entomologie faunistique 2008 61 (3), 87-97