Pseudorhynchus pungens pungens
Behaviour:
Males call at night, producing short series of syllables (syllable duration 0.27–0.66 s; n=3), spaced with several minutes of silence. The call is faintly audible to the human ear, with two frequency peaks at 18.5 kHz and 32.0 kHz (Figs. 46D–F). [1]