Literature

• Encyclopedia of Life. [link]
• Stephen P. Bush, Hannah Madden 2013. Preliminary checklist of the bees of St. Eustatius, Lesser Antilles (Hymenoptera: Apoidea Anthophila). Insecta Mundi 298: 1-3.

Literature references linked to higher taxa

• Maddison, D. (ed.). Tree of Life web project. [link] (Apoidea)
• Various contributors 2017. Hymenoptera Online (HOL) [accessed 8 March 2017]. [link] (Aculeata)