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Brust, Mathew, Jim Thurman, Chris Reuter, Lonnie Black, Robert Quartarone, Amanda J. Redford. 2014. Grasshoppers of the Western U.S., Edition 4. USDA APHIS Identification Technology Program (ITP). Fort Collins, CO. [date of access] <http://idtools.org/id/grasshoppers/>
Background image for all pages: Plains lubber grasshopper, Brachystola magna; Photo by Whitney Cranshaw, Colorado State University, Bugwood.org
Slideshow images: Admirable grasshopper, Syrbula admirabilis; Photo from Kansas Department of Agriculture Archive, Bugwood.org. Plains lubber and differential grasshopper images by Chris Reuter, USDA APHIS PPQ S&T.
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