Rattlesnake Tarantula

[Alonso Tolentino]

do you yet know how it is making the noise?

Well, I think that is not a mystery at all. What the tarantula (I will call her "she") is doing is called stridulation. It seems like she has some kind of stridulatory organ on the prolateral face of the chelicerae (stridulatory organs can occur on different appendages and surfaces). So, when she quickly rubs her chelicerae against each other, the stridulatory organs (probably a patch of setae or rows of spines) produce that "noise".

[Dave Grace]

Hi Alonso,
so its pretty much making the noise, in the same way crickets chirp, fascinating!

[Nick Masson]

No sign of the video anymore? :¬(

[Zoltan Mihaly Lestyan]

No sign of the video anymore? :¬(

The other one Brendan posted still works for me:

There appear to be a few other videos of this spider on YouTube, just run a search on "rattlesnake tarantula".

Regards,
Zoltan