Comstock, J.H. 1916a Reports on scale insects.. Bulletin of the Cornell Agricultural Experiment Station 372: 425-603.

Notes: Topics covered include characters of the Coccidae, division of the Coccidae into subfamilies, metamorphoses, and methods of control. Discusses and illustrates 48 U.S. species, with 23 described as new. Originally published in the Report of the U.S. Commissioner of Agriculture, 1880.