Acknowledgements

The authors thank Dr. Robert Pfadt for the use of the grasshopper glossary, fact sheets and associated images during the construction of this key.

Thanks to all Center Plant Health Science and Technology personnel from the Decision Support and Pest Management Systems Lab in Phoenix Arizona for suggestions and beta testing key.

Thanks to the Arizona State Plant Health Director's officers for suggestions and beta testing key.

Thanks to all the Western Region State Plant Health Directors and the National Grasshopper Management Board for support of adult key and future development of nymphal grasshopper key(s).