Noisy Panesthia angustipennis angustipennis

[stanislas]

My Panesthia angustipennis angustipennis males are very noisy! 

Once in a while one of them comes to the surface and starts making noise by hammerings with its abdomen on a piece of wood. The wood and the enclosure kind of resonates and enhances the noise. 
I manages to make an audio recording with my audio recorder (see attachement). There is a lot of bass to hear (it's a decent recorder), and it gives a good idea what I have to endure here  

I', pretty sure this is a way to attract females. 

My question: has anyone observed a similar thing? 

View attachment 20200308_Panesthia angustipennis angustipennis.mp3

 

[Hisserdude]

That's really cool, I've never heard of this behavior in this genus, definitely sounds like a way to attract females!

 

[varnon]

Very interesting. Time to automate data collection!

 

[Gromphadorhini]

I regularly observed this in all species of this genus that I had, including Panesthia a. angustipennis. Indeed, this is a demonstration of the sexual behavior of males and it is typical for the genus Panesthia, and it is possible that for the entire subfamily.