Rosa, Paolo, René Heim, and Marco Valerio Bernasconi. 2023. “The Palaearctic Types of Chrysididae (Insecta, Hymenoptera) Deposited in the Linsenmaier Collection. Part 4. Elampini: Genus Omalus Panzer, 1801”. Zootaxa 5297 (1). Auckland, New Zealand:61-86. https://doi.org/10.11646/zootaxa.5297.1.3.