Trachyrhachys aspera, the finned grasshopper, is common on rangelands
of extreme southeast Wyoming in early fall. It prefers disturbed sites
in the shortgrass prairie. Eggs overwinter in the soil. Nymphs become adults
in early September and can still be found on warm days in early November.
Its feeding habits are not well known but it will feed on blue grama and
sand dropseed. Because it occurs so late in the season, it is not known
to cause economic damage to the rangelands.
Ref: Otte 1984, and Capinera and Sechrist 1982.
Distribution Atlas Links
Grasshopper Field Guide Links