The first list of Iowa Orthoptera was entitled "A Preliminary Catalogue of the Orthoptera of Iowa." This was published by C. E. Bessey in the Seventh Biennial Report of the Iowa State College in 1877. The list included about forty species.
Proceedings of the Iowa Academy of Science
©1935 Iowa Academy of Science, Inc.
Knutson, Herbert and Jaques, H. E.
"A Revised List of the Orthoptera of Iowa,"
Proceedings of the Iowa Academy of Science, 42(1), 179-184.
Available at: https://scholarworks.uni.edu/pias/vol42/iss1/91