Tetrix arenosa

Tetrix arenosa, known generally as the obscure pygmy grasshopper or obscure grouse locust, is a species of pygmy grasshopper in the family Tetrigidae. It is found in North America.

Subspecies
These two subspecies belong to the species Tetrix arenosa:
 * Tetrix arenosa angusta (Hancock, 1896)
 * Tetrix arenosa arenosa Burmeister, 1838