Literature
- Baldock, D., Wood, T., Cross, I., Smit, J. 2018. The Bees of Portugal (Hymenoptera: Apoidea: Anthophila) – Entomofauna Suppl. S22: 1–164.
- Cardinal, S. , Buchmann, S. L. and Russell, A. L. 2018. The evolution of floral sonication, a pollen foraging behavior used by bees (Anthophila). Evolution, 72: 590-600. doi:10.1111/evo.13446.