Studies in Orthoptera which occur in North America north of the Mexican Boundary. II. Cyphoderris, a genus of katydid of southwestern Canada and the northwestern United States. Trans. Am. Entomol. Soc. 59: 371-375

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith