I have picked up stridulating moths with the mini bat detector on a number of occasions. This time I was far away from my detector but thought the moth must be producing sound, so took a photo and collected the male. It turns out that it is Symmoracma minoralis (Snellen), another pyralid. It also has been extensively studied by Heller and Krahe from observations made in Malaysia. This moth ranges from northern Australia to Sri Lanka.
The purpose of this blog is not to go into detail about the sound production of this moth but to relate how wonderful digital photography can be. Details of sound production and its function in moths can be garnered from the paper above and the one below.
S. minoralis stridulating in the field at night.
The power of mega pixels!
Gwynne, D. t., Edwards, E. D. 1986. Ultrasound production by genital stridulation in Syntonarcha iriastis Meyrick (Lepidoptera: Pyalidae): Long distance signalling by male moths? Journal of the Linnaean Society, 88: 363-376.