Literature
- Astafurova, Yu. V., Proshchalykin, M. Yu. & Shlyakhtenok, A.S. 2014. Contribution to the knowledge of bee fauna of the genus Sphecodes Latreille (Hymenoptera: Halictidae) of the Republic of Belarus. Far Eastern Entomologist, 280, 1–8.
- Baldock, D., Wood, T., Cross, I., Smit, J. 2018. The Bees of Portugal (Hymenoptera: Apoidea: Anthophila) – Entomofauna Suppl. S22: 1–164.
- Else, G.R. & Edwards, M. 2018. Handbook of the Bees of the British Isles. Ray Society, London.