strange ant behaviour

[rbjong]

Been wondering what the ant is doing...making a short and erratic knock on the pitcher?

#maximise the volume to hear clearly.

http://www.youtube.com/watch?v=uWCzqeauZ_s&feature=plcp

 

[Not a Number]

With some species that is a danger/alarm signal. Perhaps it is responding to the alarm pheromones of another ant trapped in the pitcher?

 

[Thagirion]

That's what it looks like since it's stinging the pitcher.

 

[rbjong]

Thanks for the reply. I will be more observant when i made another visit.