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Vikberg, V. and Koponen, M. 2005. Contribution to the taxonomy of the Palaearctic species of the genus <i>Laelius</i> Ashmead, mainly from Finland and Sweden (Hymenoptera: Chrysidoidea: Bethylidae). Entomologica Fennica. 16, 1 (Jan. 2005), 23–50. DOI:https://doi.org/10.33338/ef.84235.