Literature
- Amiet, F., Herrmann, M., Müller, A. and Neumeyer, R. 2004. Apidae 4. Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. Fauna Helvetica, CSCF, SEG.
- Müller, A. 2011. Palaearctic Osmiine Bees, ETH Zürich, http://blogs.ethz.ch/osmiini.