Nel, André; and De Ploëg, Gaėl. “A new bethylid wasp from the Lowermost Eocene amber of France (Hymenoptera: Bethylidae: Bethylinae)”. Geologica Acta, vol.VOL 2, no. 1, p. 75, https://raco.cat/index.php/GeologicaActa/article/view/82191.