Range-pest
Guides
Arrhenopeplus brunneus
Bruner slantfaced grasshopper
Arrhenopeplus brunneus is a medium-sized, colorful grasshopper of the slantfaced subfamily Gomphocerinae, widely distributed in the hills and mountains of the northwestern United States. The species inhabits mixedgrass and bunchgrass prairies, mountain meadows, parklands, and alpine tundra at elevations from 1,600 to 11,100 feet. During population irruptions, it becomes a serious pest of mountain and foothill grasslands, capable of causing considerable damage to range grasses. The species exhibits a two-year life cycle in mountain meadows and northern grasslands, with hatching occurring in June and adults appearing in July or August depending on seasonal temperatures.