01003nas a2200133   4500008004100000245008700041210006900128300001000197490000600207520054100213100002600754700002000780856006900800       1993                        eng d00aThe ultrasonic song of the moth Amyna natalis (Lepidoptera:Noctudidae: Acontiinae)0 aultrasonic song of the moth Amyna natalis LepidopteraNoctudidae   a89-970 v53 a<p>In Malaysia, males of the noctuid moth Amyna natalis were observed producing a continuous ultrasonic song of high intensity (about 102 dB SPL measured at a distance of 10cm). The frequency spectrum of the sound impulses had its peak between 60 and 80 kHz. During song production the animals were perching on plants and moving their wings up and down quickly. Simultaneously, by twisting the wings it seems likely that a male-specific &ldquo;bubble&#39;&#39; in the forewing functions as a tymbal, resulting in sound production.</p>
1 aHeller, Klaus-Gerhard1 aAchmann, Roland  uhttp://www.tandfonline.com/doi/abs/10.1080/09524622.1993.9753231