Blatchley, W.S. 1926. Heteroptera, or true bugs of eastern North America, with especial reference to the faunas of Indiana and Florida. The Nature Publishing Co., Indianapolis. 1116 pp.

Henry & Froeschner (1988) write:

Blatchley's (1926) "Heteroptera of Eastern North America" is probably the single most useful reference to the bugs of the U.S. and Canada. Although more than 60 [now 80] years out of date, its broad coverage with keys to families, genera, and species, accompanied by numerous valuable biological notes and illustrations, makes this volume a necessary point of reference for the North American fauna. Even though Blatchley covers only the eastern part of our region, his keys, notes, and introductory remarks provide a much broader perspective."

Henry, T.J., & R.C. Froeschner, editors. 1988. Catalog of the Heteroptera, or True Bugs, of Canada and the Continental United States. E. J. Brill, New York. xix + 958 pp. (1)