BioAcoustica is a free, open repository of wildlife sound recordings from the Natural History Museum, London.
Taxonomic index of the BioAcoustica collection
Acoustic and biological measurements in the BioAcoustica collection
Recording annotations from ann-o-mate
The specimens that recordings are of, from the collections
Where the specimens that recordings are of were collected, not where the sound was recorded
Specimens could be heard at night in July... Males stridulate with a loud zwick (Fig 37A). This race has the loudest call of any of the subspecies heard by the authors. The call can easily be heard from a moving automobile. Stridulation usually ceased by midnight as the coolness of night approached.