Mosquera P., F. 1979a Algunas consideraciones sobre la importancia económica del piojo blanco de los cítricos, Unaspis citri. [Some considerations on the economic importance of the white scale of citrus, Unaspis citri.]. Revista Colombiana de Entomología 5: 53-56.

Notes: Noted that 86% of specimens of a colony of U. citri were not feeding; 43-78% of active species were crawlers and males which do not cause damage after second molt.