Oscillograms of calling songs A–E and rivalry songs F,G in Chorthippus brunneus from Kostroma region (A) Poltava region (B) and Saratov region (F). Song recordings are presented at four different speeds (faster oscillograms of the indicated parts of the songs shown in C,D,E,G). In all oscillograms the two upper lines are recordings of hind leg movements and the lower line is the sound recording. Different song parameters are indicated by brackets and arrows. The ambient temperature near a singing male was 29 – 32°C.

  Part of: Tarasova T, Tishechkin D, Vedenina V (2021) Songs and morphology in three species of the Chorthippus biguttulus group (Orthoptera, Acrididae, Gomphocerinae) in Russia and adjacent countries. ZooKeys 1073: 21-53. https://doi.org/10.3897/zookeys.1073.75539