Literature
- Baldock, D., Wood, T., Cross, I., Smit, J. 2018. The Bees of Portugal (Hymenoptera: Apoidea: Anthophila) – Entomofauna Suppl. S22: 1–164.
- Smit, J. 2018. Identification key to the European species of the bee genus Nomada Scopoli, 1770 (Hymenoptera: Apidae), including 23 new species. Entomofauna Monographie 3: 1-253 Ansfelden.