Gómez-Menor Ortega, J. 1959 Homopteros "Sternorrhyncha" que atacan a la encina, II Parte.. Revista de Entomologia de España 17: 141-201.

Notes: Redescribes five Diaspididae, one Coccidae, two Asterolecaniidae, one Eriococcidae, and three Kermidae; hosts, distribution and natural enemies.