Gwynne DT, Bailey WJ. Mating System, Mate Choice and Ultrasonic Calling in a Zaprochiline Katydid (Orthoptera: Tettigoniidae). Behaviour. 1988;105(3):202 - 223. Available at: http://booksandjournals.brillonline.com/content/journals/10.1163/156853988x00025.