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
Males fly with a loud rattling sound, which is produced by the hind wings. Together with the strikingly bright red wings, this may serve to startle potential enemies. It also has a function in courtship. In cooler weather and after repeated disturbance, the insects fly quietly. The females can rattle while sitting or jumping.