Quezada, J.R., Cornejo, C., Díaz de Mira, A., & Hidalgo, F. 1972 . [The main species of insects associated with citrus crops in El Salvador.] Ministerio de Agricultura y Ganaderia San Salvador, E. Salvador 49 pp.

Notes: [Date unknown; 1972 used for date as it was the most current date from the list of references cited.] Original title: Pricipales especies de insectos asociados a los cultivos de cítricos en El Salvador; species reviewed include Unaspis citri, Selenaspidus articulatus, Lepidosaphes bekii (beckii?), L. gloverii, Chrysomphalus ficus, C. dictiospermi (Dictyospermi?), Saissetia oleas (oleae?), S. nigra, S. hemisphaerica, Coccus viridis, C. hesperidum, Icerya purchasi, I. similis, Ceroplastes floridensis, Steatococcus, Planococcus citri and Ferrisia virgata; brief descriptions and illustrations; natural enemies.