Trimerotropis fratercula has been found in eastern Wyoming as
far north as Guernsey. It prefers open pine savannahs and mountain foothills.
Our adult specimens were collected July 31, south of Pine Bluffs, but adults
are probably present through August. This uncommon grasshopper is not considered
an economic pest in Wyoming.
Ref: Otte 1984, and Capinera and Sechrist 1982.