Portillo, Liberato, e Ana Lilia Vigueras. 2001. «The Genus Dactylopius (Homoptera: Dactylopiidae) and Its Hosts in Jalisco, Mexico». Bollettino Di Zoologia Agraria E Bachicoltura 33 (3):249-51. https://riviste.unimi.it/index.php/bzab/article/view/27522.