Literature
- Baldock, D., Wood, T., Cross, I., Smit, J. 2018. The Bees of Portugal (Hymenoptera: Apoidea: Anthophila) – Entomofauna Suppl. S22: 1–164.
- Banaszak, J. and Dochkova, B. 2014. Bees (Hymenoptera, Apoidea, Apiformes) in the agricultural landscape of Bulgaria: species diversity Journal of Apicultural Science Vol. 58 No. 1 pp. 29-49.
- Cross, I. 2017. Eucera nigrilabris Lepeletier, 1841 is the host of Sphecodes rubripes Spinola, 1838 (Hymenoptera: Aculeata) Ampulex 9 pp 12-14.
- Vereecken, N.J., Risch, S., & Cortis, P. in prep. - A contribution to the pollination biology of Ophrys scolopax Cavanilles (Orchidaceae) in southern France. .