Trimerotropis diversellus has been reported most often in Wyoming from Yellowstone National Park. Our specimens
were found on barren mineralized soil associated with fumaroles and geyser basins.
In other states it is usually found in open woodlands or alkaline depressions. Our
records of adults are from late August and September. Because of limited distribution
and abundance it is not considered a pest species in Wyoming.
Ref: Otte 1984.
