Trimerotropis sparsa is the only grasshopper in western Wyoming
with light blue hindwings. It is most common in western Wyoming where it
prefers areas of barren or eroded soil, often on sagebrush or greasewood
flats. Adults are present from August to early September. It is not considered
an economic pest in Wyoming.
Ref: Otte 1984, and Capinera and Sechrist 1982.