Eritettix simplex, known generally as the velvet-striped grasshopper or velvet-striped locust, is a species of slant-faced grasshopper in the family Acrididae. It is found in Central America and North America.
Further reading
Book: The North American Grasshoppers, Volume I, Acrididae, Gomphocerinae and Acridinae. 1981. Otte . Daniel. Harvard. 978-0674626607.