Copyright, citation, and disclaimers


Copyright notice

The content on this site was created by the USDA APHIS Identification Technology Program (ITP). The content is in the public domain except where otherwise indicated. However, we ask that appropriate acknowledgement is given to the authors, USDA APHIS ITP and the University of Nebraska–Lincoln if the information and figures from Grasshoppers of the Western U.S. is used elsewhere.

This site also includes content created by other individuals or institutions. Where this content is copyrighted, it should be properly credited, and users must seek permission from the appropriate copyright owners to use this material.

Suggested citation

Brust, Mathew, Jim Thurman, Chris Reuter, Lonnie Black, Robert Quartarone, Amanda J. Redford. 2020. Grasshoppers of the Western U.S., Edition 4.1. USDA APHIS Identification Technology Program (ITP). Fort Collins, CO. [date of access] <>

Home page images

Background image for all pages: Plains lubber grasshopper, Brachystola magna; Photo by Whitney Cranshaw, Colorado State University,

Slideshow images: Admirable grasshopper, Syrbula admirabilis; Photo from Kansas Department of Agriculture Archive, Plains lubber and differential grasshopper images by Chris Reuter, USDA APHIS PPQ S&T.


Even though we have made every effort to provide accurate and updated information, the authors and USDA APHIS ITP specifically disclaim all legal liability with respect to the accuracy, completeness, or usefulness of any information contained in Grasshoppers of the Western U.S.. The authors and the institutions involved shall assume no legal liability for any damages, including direct, indirect, consequential, compensatory, special, punitive, or incidental damages arising from or relating to the use of Grasshoppers of the Western U.S. or the information and materials provided by or linked to from Grasshoppers of the Western U.S..

The U.S. Department of Agriculture (USDA) prohibits discrimination against its customers, employees, and applicants for employment on the bases of race, color, national origin, age, disability, sex, gender identity, religion, reprisal, and where applicable, political beliefs, marital status, familial or parental status, sexual orientation, or all or part of an individual’s income is derived from any public assistance program, or protected genetic information in employment or in any program or activity conducted or funded by the Department. (Not all prohibited bases will apply to all programs and/or employment activities.

Mention of companies or commercial products does not imply recommendation or endorsement by the USDA over others not mentioned. USDA neither guarantees nor warrants the standard of any product mentioned. Product names are mentioned solely to report factually on available data and to provide specific information.