Gurney, A. B., A.R. Brooks. 1959. Grasshoppers of the Mexicanus Group Genus Melanoplus. Proc. U.S. Nat. Mus. 110(3416):1-93 pl 2   cc-by-nc-sa-3.0

Melanoplus spretus (Rocky Mountain Locust) is a species of Orthoptera in the family short-horned grasshoppers. This species is extinct. It is a grazer.

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EOL has data for 15 attributes, including:

Known occurrences, collected specimens and observations of Rocky Mountain Locust