Literature
- Fateryga A.V. 2017. New data on megachilid bees (Hymenoptera: Megachilidae) of the European part of Russia Proceedings of the Russian Entomological Society. St Petersburg, 2017. Vol. 88(2): 86–90.
- Müller, A., Richter, H. 2018. Dual function of Potentilla (Rosaceae) in the life history of the rare boreoalpine osmiine bee Hoplitis (Formicapis) robusta (Hymenoptera, Megachilidae). Alpine Entomology 2: 139-147. .