Oecanthus burmeisteri
Behaviour:
The African tree cricket, Oecanthus burmeisteri, calls from pear-shapes holes that it chews in leaves, using the leaf as a baffle that effectively extends the free edge of its tegmina by several centimeters and thus reduces destructive interference from sound waves emanating from alternate surfaces of the tegmina (35, 90). This self-made baffle increases the sound amplitude 2.5–3.5 times, which is similar to a ninefold increase in acoustical power (36). [1]