Miller, D.R. 1991a Scale Insects (Coccoidea, Homotera).. Insect and Mite Pests in Food: an Illustrated Key (Volume 2). Agriculture Handbook No. 665. Superintendant of Documents, U.S. Government Washington, DC
Notes: Publisher continues: Printing Office. Abstract: General description of scales to distinguish them from other Insecta and from other homopterous insects; only three of 15 families (U.S.) are likely to be found in food (usually citrus, tropical fruits, deciduous-tree fruits, and grapes): Pseudococcidae (mealybugs), Diaspididae (armored scales) and Coccidae (soft scales); key, distributions and illustrations of adult females of 23 species provided.