Comstock, J.H. 1881a Report of the Entomologist.. Report of the Commissioner of Agriculture, United States Department of Agriculture 1880/1881: 276-349.
Notes: [Three parts: Part I - Miscellaneous insects, pp 236-275; Part II - Report of scale insects, pp 276-291; Part III - Report on the parasites of the coccidae 292-353.] Discusses 48 U.S. species, with 23 described as new. Reprinted in Bulletin of the Cornell Agricultural Experiment Station 372: 425-500 (1916).