Literature
- Catalogue of Life. Species 2000 & ITIS. [link]
Literature references linked to higher taxa
- Encyclopedia of Life. [link] (Hymenoptera)
- Maddison, D. (ed.). Tree of Life web project. [link] (Apoidea)
- Various contributors 2017. Hymenoptera Online (HOL) [accessed 8 March 2017]. [link] (Aculeata)