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. They are native to The Nearctic. Reproduction was oviparous. They are fast moving animals.

  • URI: http://eol.org/schema/terms/extinct
  • Definition: A taxon is Extinct when there is no reasonable doubt that the last individual has died. A \r\ntaxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, \r\nat appropriate times (diurnal, seasonal, annual), throughout its historic range have failed \r\nto record an individual. Surveys should be over a time frame appropriate to the taxon’s \r\nlife cycle and life form.
  • Attribution: http://www.iucnredlist.org/technical-documents/categories-and-criteria
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EOL has data for 31 attributes, including:

Known occurrences, collected specimens and observations of Rocky Mountain Locust. View this species on GBIF