Ramírez, R. 1921 Plagas de la agricultura en el distrito federal. [Agricultural pests in the Federal District.]. La Revista Agrícola (Mexico) 5: 662-663.

Notes: Pests include species of Kermes, Dactylopius, Pseudococcus, Ceroplastes, Coccus, Neolecanium, Saissetia, Chionaspis, Diaspis and Aspidiotus.