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. |
Males of Z. ophthalmicus call from high in the trees, usually at least 5 m above the ground, and are difficult to spot. Their call is a bell-like, nearly pure-tone series of short, 0.18–0.28 s echemes, each consisting of 4–6 syllables; mean syllable duration is 0.02798 s (SD=0.00454, n=52); the peak frequency of the call is 6.4–8.3 kHz (Figs. 57D–F). The call is easily audible to the human ear from at least 50 meters away.