Acrididae Links
Grasshoppers of Colorado - a nice site with info on identification, biology, and management
http://www.sdvc.uwyo.edu/grasshopper/ghcotoc.htm
Key to Wyoming Grasshoppers
http://www.sdvc.uwyo.edu/grasshopper/kwgkey6.htm
Field Guide to Common Western Grasshoppers - info on identification, biology, and management
http://www.sidney.ars.usda.gov/grasshopper/ID_Tools/F_Guide/refrence.htm
Grasshoppers of Florida - keys, photos, biology, habitat, etc.
http://entnemdept.ifas.ufl.edu/ghopper/ghopper.html
Grasshoppers of the Great Smoky Mountains National Park.