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.