Rosa, P., R. Heim, and M. V. Bernasconi. “The Palaearctic Types of Chrysididae (Insecta, Hymenoptera) Deposited in the Linsenmaier Collection. Part 6. Parnopini: Genus Parnopes Latreille; Chrysidini: Genus Euchroeus Latreille and Stilbum Spinola”. Zootaxa, vol. 5752, no. 2, Jan. 2026, pp. 1-36, doi:10.11646/zootaxa.5752.1.1.