Koponen, M., and J. Halme. “New Finds of <i>Ephedrus</i> and <i>Toxares</i> Species (Hymenoptera, Braconidae, Aphidiinae) from Finland”. Entomologica Fennica, vol. 4, no. 1, Jan. 1993, pp. 31-36, doi:10.33338/ef.83748.