Smith, Clyde F., Silverio Medina Gaud, Luis F. Martorell, and Mario E. Pérez-Escolar. “Additions and Corrections to the Aphididae of Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 55, no. 2 (April 1, 1971): 192–258. Accessed November 28, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/11050.