^
Otte, Daniel; Cigliano, Maria Marta; Braun, Holger; Eades, David C. (2019). "genus Opeia McNeill, 1897". Orthoptera species file online, Version 5.0. Retrieved 2019-07-02.
Further reading
Otte, Daniel (1981). The North American Grasshoppers, Volume I, Acrididae, Gomphocerinae and Acridinae. Harvard. ISBN978-0674626607.
Bland, Roger (2003). The Orthoptera of Michigan: Biology, Keys, and Descriptions of Grasshoppers, Katydids, and Crickets. Michigan State University Extension. ISBN978-1565250178.