Rep. Entomologist, 1885, p. 229.
Tr. S. Afr. Phil. Soc. i. 1880, p. 193. The species is thought to be Pachytylus sulcicollis Stål.
CR. Soc. ent. Belgique, xxi. 1878, p. 5.
Addit. ad Prodromum Oedipodiorum, 1888, p. 12.
See Redtenbacher, Über Wanderheuschrecken, in Jahresber. Realschule Budweis, 1893.