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For Insects, Spiders & Their Kin
For the United States & Canada

Species Pardalophora phoenicoptera - Orange-winged grasshopper


The North American Grasshoppers, volume I, Acrididae, Gomphocerinae and Acridinae
By Daniel Otte
Harvard, 1981
This is a very thorough treatment of the Slant-face Grasshoppers. It is full of information on behavior, has descriptions and maps of all species, as well as high quality illustrations of nearly all. It is extremely useful as an identification guide, as well as for learning about these fascinating insects. It covers all of North America from Panama northward. The treatment is still nearly up to date, with little having changed since it was published. I believe it is out of print now, but I find it still occasionally available. Hopefully it will be reprinted.
Harvard University Press

The North American Grasshoppers, volume II, Acrididae, Oedipodinae
By Daniel Otte
Harvard, 1984
This is a very thorough treatment of the Band-wing Grasshoppers. It is full of information on behavior, has descriptions and maps of all species, as well as high quality illustrations of nearly all. It is extremely useful as an identification guide, as well as for learning about these fascinating insects. It covers all of North America from Panama northward. The treatment is still nearly up to date, with little having changed since it was published. Long out of print, it is now available again from Harvard University Press

Evolution, Diversification, and Biogeography of Grasshoppers (Orthoptera: Acrididae)
By Hojun Song, Ricardo Mariño-Pérez, Derek A Woller, Maria Marta Cigliano
Insect Systematics and Diversity, 2(4):3, 1-25, 2018
Full text (PDF available)

How to Know the Grasshoppers, Cockroaches, and Their Allies
By Jacques R. Helfer
Wm. C. Brown Company, 1962
Part of the original Pictured Key Nature Series. I have only seen the 1962 original paperback. There was a 1987 Dover reprint, apparently of the 1972 (2nd) edition.
Covers grasshoppers, termites, cockroaches, and mantids. Has 540 good black-and-white illustrations. Though somewhat dated, has more thorough coverage of some groups (e.g., Pygmy Grasshoppers, Tetrigidae) than more recent popular guides. Worth finding if you are interested in orthoptera.

The 1987 Dover reprint of the 2nd edition includes a new preface, new footnotes, new illustrations, treatment of crickets, and a

Grasshoppers (Acrididae) of Colorado: identification, biology and management
By John L. Capinera, T. S. Sechrist
Colorado State University Agricultural Experiment Station Bulletin, 584S, 1982

Synopsis of Orthoptera (sensu lato) of Alabama
By Matt E. Dakin, Jr., and Kirby L. Hays
Auburn University Agricultural Experiment Station Bulletin, No. 404, 1970
Keys to at least most of the latent sense Orthoptera in Alabama (includes Blattodea, Mantodea, Phasmida, etc).

https://aurora.auburn.edu/handle/11200/2343

Key to the Grasshoppers (Orthoptera: Acrididae) of Florida
By Trevor Randall Smith, Jason G. Froeba, and John L. Capinera
Florida Entomologist, Vol. 87, No. 4, 2004
"A dichotomous key is presented to aid in the identification of the adult stage of the 71 grasshopper species known to occur in Florida. Reflecting recent research one subspecies, Schistocerca alutacea rubiginosa (Scudder), has been elevated to species status Schistocerca rubiginosa (Harris) in this key."

Florida Entomologist link

Florida Entomologist PDF

The grasshoppers of Oklahoma (Orthoptera: Acrididae)
By Stanley Coppock Jr
Oklahoma State University, 1962