Alpine shieldback
Acrodectes philopagus Rehn and Hebard 1920

24 s of calling song [1.55MB]; male from Inyo Co., Calif., Mono Pass; 23.0C. (D.C. Rentz tape DCR33; used by permission).

Waveform of 5 s of calling at 23.0°C (from DCR33). Peak frequency 10 kHz.
Click on first half of waveform to hear graphed song.
Click on second half of waveform to expand eight short syllables and last three syllables.

Nomenclature: OSF (Orthoptera Species File Online)