Torres-Vila, Luis M. et al. “First record in the Balearic Islands of Oobius rudnevi (Nowicki, 1928) (Hymenoptera: Encyrtidae), egg parasitoid of the great capricorn beetle, Cerambyx cerdo Linnaeus, 1758”. Bolletí de la Societat d’Història Natural de les Balears, vol.VOL 66, pp. 111-5, https://raco.cat/index.php/BolletiSHNBalears/article/view/429286.