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
| Naskrecki, Piotr; Guta, Ricardo (2019). Katydids (Orthoptera: Tettigoniidae) of Gorongosa National Park and Central Mozambique. Zootaxa, 4682(1): 1 - 119. |
The call of P. graminea consists a series of echemes made up of two closely spaced syllables pro- duced every 3–5 s; mean syllable duration is 0.048 s (SD=0.0040, n=20); the peak frequency of the call is 9.9–11.7 kHz (Figs. 53G–I). The call is audible from a distance of a few meters.