Counts, B. 2002. Chapter 6. Illustrated Key to the Genera Level of the Odonata Larvae of Ohio and Adjacent States. In R.C. Glotzhober and D. McShaffrey (eds). The Dragonflies and Damselflies of Ohio. Ohio Biological Survey Bulletin New Series. Vol. 14: 46-61.
Glotzhober, R.C. and D. McShaffrey (eds.). 2002. The Dragonflies and Damselflies of Ohio. Ohio Biological Survey Bulletin New Series. Vol. 14, No. 2. ix + 364 p. This important monograph gives keys to species, an atlas of counties where species were collected and much other information. The definitive publication on Ohio Odonata.
Ohio Environmental Protection Agency Macroinvertebrate Taxa List.
Ohio Odonata Society. httm://www.marietta.edu/~odonata/. Updates of Glotzhober & McShaffrey (2002). Atlas by species and by county is thorough and includes flight times for each species. This website is a must for Ohio Odonata.
Richardson, J.S. 2003. Identification Manual for the Dragonfly Larvae (Anisoptera) of Florida. State of Florida, Department of Environmental Protection. (pdf)
Tennessen, K.J. 2008. Chapter 12. Odonata. (In) R.W. Merritt, K.W. Cummins and M.B. Berg. An Introduction to the Aquatic Insects of North America (4th Ed.) Kendall/Hunt Publishing Co., Dubuque, Iowa.