Natural History of the Rocky Mountain Locust

 The insects which were responsible for the Grasshopper plagues in the 1870's were actually Rocky Mountain locusts. Their scientific name was Caloptenus spretus. Here is a drawing of one from the 1877 Federal Entomologist's Report:

rocky mountain locust


 Here is a scan from the same publication that shows the Rocky Mountain Locust in various life stages:

Rocky Mountain Locust

  Visit our other pages to learn more about the Grasshopper Plagues: 

Rocky Mountain Locust Natural History
Grasshopper Gathering Equipment
Actual Missouri Accounts
Grasshoppers and a Sense of Humor
Destitute Settlers
Were they all bad?
Grasshoppers and Trains
Do we still have Grasshopper Plagues?
Missouri Legislation
What can we learn from the Grasshopper Plagues?
Damage Estimates and Restitution
Grasshopper Plague links

This page was designed and is maintained by Lyndon N. Irwin