FIGURES 31–36 in A new species of Oecanthus and Oecanthus lineolatus Saussure, 1897 from Southern Brazil: species description, including phallic sclerites, metanotal glands and calling song (Orthoptera: Gryllidae: Oecanthinae)

FIGURES 31–36. Calling songs of Oecanthus pallidus n. sp and Oecanthus lineolatus. 31—spectrogram of Oecanthus pallidus n. sp.; 32—spectrogram of Oecanthus lineolatus; 33—oscillograms of Oecanthus pallidus n. sp., a–chirp beginning with two isolated pulses (arrow), b–amplitude variation in the first pulse (arrow), c–broken chirp (arrow); 34—oscillograms of Oecanthus lineolatus, a–broken chirp (arrow), b–regular train of pulses, c–amplitude variation in the first pulses (arrow), A–chirp first pulse, B–chirp last pulse, C–chirp duration, D–chirp period; 35—regresson lines showing the effect of temperature on pulse rate for both species; 36—relationship between pulse rate and frequency in both species.