Fig 42 from: ter Hofstede HM, Symes LB, Martinson SJ, Robillard T, Faure P, Madhusudhana S, Page RA (2020) Calling songs of Neotropical katydids (Orthoptera: Tettigoniidae) from Panama. Journal of Orthoptera Research 29(2): 137-201. https://doi.org/10.3897/jor.29.46371

Fig 42 Photographs and calling song spectrograms of Acanthodis curvidens. A. Male (photo credit: T. Robillard); B. Face (photo credit: H. ter Hofstede); C. and D. Spectrogram (top panel) and oscillogram (bottom panel) of one call at different time scales.