Trimerotropis fontana occurs mainly west of Wyoming but some
populations are found in the western half of the state. It prefers dry
grasses and sagebrush in openings in pines. It is often found on patches
of barren gravelly soil. Adults were collected in late August and September.
This uncommon species has no known economic importance in Wyoming.
Ref: Otte 1984, and Capinera and Sechrist 1982.