Figure 21 from: Hemp C, Heller K, Warchalowska-Sliwa E, Hemp A (2016) Spotted males, uniform females and the lowest chromosome number in Tettigoniids recorded: Review of the genus Gonatoxia Karsch (Orthoptera, Phaneropterinae). Deutsche Entomologische Zeitschrift 63(2): 271-286. https://doi.org/10.3897/dez.63.10799

Figure 21 - Oscillograms of the male calling song of Gonatoxia species. In Gonatoxia maculata and Gonatoxia helleri only part of a much longer sequence is shown, in Gonatoxia immaculata and Gonatoxia furcata complete series