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
Morris, Glenn K.; Pipher, Robert E. (1972). THE RELATION OF SONG STRUCTURE TO TEGMINAL MOVEMENT IN METRIOPTERA SPHAGNORUM (ORTHOPTERA: TETTIGONIIDAE). The Canadian Entomologist, 104(07): 977 - 985.
Flash photography of the wings of a decticine katydid, Metrioptera sphagnorum (F. Walker), during stridulation, indicates that major trains of sound pulses of both song modes coincide with wing closures. The song mode characterized by intense ultrasonics is generated by tooth–scraper interactions over an interval of approximately 60 teeth at the lateral end of the file. A more medial file region is employed for the audio-dominated mode. Tooth removal confirms the role of different file regions in mode generation. Each pulse of the ultrasonic mode closure is a wave train of 10–15 waves of uniform amplitude, approximating a pure tone frequency of 33 kHz.
| Metrioptera sphagnorum |
Where the specimens that recordings are of were collected, not where the sound was recorded