Toothed Dune Grasshopper (Trimerotropis agrestis barnumi) - Alamosa County CO - August 2017
Photographed, appropriately at Great Sand Dunes National Park. Per BugGuide, this taxon Sand areas, mostly on moderately stable dunes in grassland and open woodland, from western New Mexico, Colorado, and Wyoming westward into Idaho northern Arizona, and Nevada. It is found scattered through most of Utah. It may be in southeastern Oregon. The nominate subspecies occurs in similar habitat in the prairies east of the Rockies with a contact zone in WY, where the two interbreed.
A key to ID is the bright orange-red inner-femur and tibia. See bugguide.net/node/view/1478909/bgimage
Toothed Dune Grasshopper (Trimerotropis agrestis barnumi) - Alamosa County CO - August 2017
Photographed, appropriately at Great Sand Dunes National Park. Per BugGuide, this taxon Sand areas, mostly on moderately stable dunes in grassland and open woodland, from western New Mexico, Colorado, and Wyoming westward into Idaho northern Arizona, and Nevada. It is found scattered through most of Utah. It may be in southeastern Oregon. The nominate subspecies occurs in similar habitat in the prairies east of the Rockies with a contact zone in WY, where the two interbreed.
A key to ID is the bright orange-red inner-femur and tibia. See bugguide.net/node/view/1478909/bgimage