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
Claridge, M. F. (1974). Stridulation and defensive behaviour in the ground beetle, Cychrus caraboides (L.). Journal of Entomology Series A, General Entomology, 49(1): 7 - 15.
Adults of both sexes of C.caraboides stridulate by means of an elytroabdominal mechanism. The stridulatory surfaces consist of opposing series of microlamellae, only seen clearly with the surface scanning electron microscope. Sound emission covers a wide band of frequencies from audible to about 80 kHz. It is suggested that stridulation may act as an acoustic warning to certain vertebrate predators.
| Cychrus caraboides |
Where the specimens that recordings are of were collected, not where the sound was recorded