MacGillivray, A.D. 1921 . The Coccidae. Tables for the Identification of the Subfamilies and Some of the More Important Genera and Species, together with Discussions . . . Scarab Urbana, Ill. 502 pp.
Notes: A synoptic classification of the Coccidae, presenting 17 subfamilies and many new genera; subfamily, generic, and in many instances, specific keys; especially detailed treatment of Diaspidinae; based primarily on a study of coccid literature, not specimens; no illustrations.