What is it doing?

[yanyewkay]

I just saw this pic http://static.flickr.com/41/119818889_28ab562d89_o.jpg what is it doing?

It seems to be feeding off the ants? and the ants don't attack it?
Trying to ID it.. is is a Biggs's Brownie? Looks like it to me..

original post from here (http://forums.clubsnap.org/showthread.php?t=187343)

[Elbowed Pierrot]

the butterfly is a friend of the ants ;p... keke

I think its due to the fact that when the brownie was a cat, the ants protect it and in return for their protection, the cat produces glucose for the ants

[yanyewkay]

so now the butt takes back the favour by feeding off the ants?

[isaac]

Thanks for the rare look at these "incidents"... But I have also seen butts being attacked by the ants and eaten... hmm...