Pallid-winged Grasshopper Grasshopper (Trimerotropis pallidipennis) - Boulder County CO - September 2017
Photo taken at Hall Ranch near top of Antelope Valley Trail. This is a successful species, ranging from s. Canada to Argentina. It is also annoyingly variable in its markings.
From the University of Wyoming:
Outbreak numbers of the pallidwinged grasshopper damage the forage of their habitats. For instance, in Arizona in 1958 populations of nymphs residing in low areas and along washes numbered from 50 to more than 100 per square yard. They fed upon both annual grasses and forbs. Later in spring, the late nymphs and adults migrated into irrigated crops. In small grains, populations of 25 to 50 adults per square yard defoliated wheat and cut off heads.
Pallid-winged Grasshopper Grasshopper (Trimerotropis pallidipennis) - Boulder County CO - September 2017
Photo taken at Hall Ranch near top of Antelope Valley Trail. This is a successful species, ranging from s. Canada to Argentina. It is also annoyingly variable in its markings.
From the University of Wyoming:
Outbreak numbers of the pallidwinged grasshopper damage the forage of their habitats. For instance, in Arizona in 1958 populations of nymphs residing in low areas and along washes numbered from 50 to more than 100 per square yard. They fed upon both annual grasses and forbs. Later in spring, the late nymphs and adults migrated into irrigated crops. In small grains, populations of 25 to 50 adults per square yard defoliated wheat and cut off heads.