Morris GK, Gwynne DT. Geographical Distribution and Biological Observations of Cyphoderris (Orthoptera: Haglidae) With a Description of a New Species. Psyche: A Journal of Entomology. 1978;85(2-3):147 - 167. Available at: http://www.hindawi.com/journals/psyche/1978/084389/abs/.

Gwynne DT, Morris GK. Random noise and generic discrimination in Conocephalus (Orthoptera: Tettigoniidae). In:  Orthopteran Mating Systems: Sexual Competition in a Diverse Group of Insects. Orthopteran Mating Systems: Sexual Competition in a Diverse Group of Insects.; 1983:73-96. Available at: http://entnemdept.ufl.edu/Walker/buzz/s220lmf83.pdf.