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
| Otte, Daniel; Hennig, R. Matthias (1998). A New Species of Damaracheta from South Africa. Journal of Orthoptera Research, (7): 241. |
The song consists of a trail of chirps produced approximately one each second (in males singing alone; in laternating males the chirp rate is slower). Each chirp consists of two parts - the first half consists of pulses with a period of approximately 20 ms, the second half contains chirps witha period of approximately 40 ms; during the second half the pulse period becomes steadily longer. The carrier frequency of pulses is about 4.5kHz betwen 20°C and 24°C. Males may alternate in their chirping such that one male places his chirps halfway between two successive chirps of a neighbouring male. In these periods of alternation there may also be longer bouts of sychronized, i.e., simultaneous chirping. In alternating males teh chirp rate is slower (Fig. 2).