Behaviour:
The male calling song, heard mainly at dusk and during the night, is very similar to that of P. falcata, consisting of isolated syllables repeated, often quite irregularly, at intervals within the range 1-3s. Each syllable lasts for about 50-150ms and usually consists of 2-7 tooth impacts. Heller (1998) has shown that, as in P. falcata, the sound is produced entirely by the opening stroke of the fore wings.
We have not heard this species produce the clearly-defined echemes that seem to be a normal component of the calling song of P. falcata.[1]
引用
- . The Songs of the Grasshoppers and Crickets of Western Europe. Colchester, Essex: Harley Books; 1998.
Taxonomic name: