Melanoplus flavidus is found in weedy areas of the sagebrush prairies in Wyoming. It is often associated with sandy soils. The species is very similar to M. bowditchi in appearance. Eggs overwinter in the soil and hatch in June. Adults are present from late July to September. It is a forb feeder with a preference for wild sunflower and ragweed. When native plant food is scarce it will feed on alfalfa.
Ref: Capinera and Sechrist 1982.