This is an animal(we like to call this one "largatixa") that is all over the place here in south Brazil, it is harmless and hunts mostly flies, mosquitoes, spiders and roaches.
Also, here is an older picture, this one had a roach in his mouth. I don't know how it even eats such thing. It's almost as big as him.
I love that lizard, I can't stand damn cockroaches.
God damn, that roach is gigantic.
You think so? That is probably a little below average for Brazilian standards. Its antenna is oddly huge though.