Opeia obscura, the obscure grasshopper, is common throughout
the shortgrass prairie of eastern Wyoming. Populations diminish in the
taller grasses of the Black Hills and are rare in the more desert regions
of the southwest. Eggs overwinter in the soil. Adults are found from early
August through September. This species feeds almost exclusively on grama
grasses but will feed on other grasses. When abundant it can consume large
amounts of forage. Their late-season occurrence prevents them from acting
in conjunction with the early grass-feeding species.
Ref: Otte 1981, and Capinera and Sechrist 1982.
Distribution Atlas Links
Grasshopper Field Guide Links