Comstock, J.H. 1883 Second report on scale insects, including a monograph of the sub-family Diaspinae of the family Coccidae and a list, with notes of the other species of scale insects found in North America.. Department of Entomology Report, Cornell University Agricultural Experiment Station 2: 47-142.
Notes: Lists or discusses 168 scale insects, including 97 from N. America, with 14 new; keys to U.S. Aspidiotus, Diaspis, Chionaspis, Parlatoria species. Also in Cornell Univ. Agr. Expt. Sta. Bul. 372: 507-603, 1916.Download PDF