Melanoplus spretus Walsh, 1866
Rocky Mountain locust, Rocky Mountain grasshopper
Taxonomy & Nomenclature
Synonym/s: Caloptenus spretus Walsh, 1866
Last record: 1902
IUCN RedList status: Extinct
The most numerous recent species, with a total population variously estimated at 12.5 trillion individuals, it went from ubiquitous to extinct within about 30 years. The breeding grounds where it laid its eggs on river banks were turned over by agricultural equipment, killing the eggs of this species and hence driving it into extinction.
North America (Canada & United States)
Biology & Ecology
For a photograph of a pinned specimen see: http://fcmdsc.wordpress.com/tag/melanoplus-spretus/
Original scientific description:
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