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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