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Grasshoppers of Wyoming and the West

Entomology

Finned Grasshopper

Trachyrhachys aspera Scudder

Trachyrhachys aspera

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.
 

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Scott Schell

Room #9, Agriculture Bldg.

Phone: (307) 766-2508

Email: insectid@uwyo.edu

1000 E. University Ave. Laramie, WY 82071
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