Huge species, the soldiers are about the size of the coin which is 19,75 mm. On cork oak working hard, so hard you could hear them.
Small Camponotus. At first I thought C.balzani. But it's not him. Pay attention to the 2 points in the abdomen. Maybe someone knows. I have no workers, only eggs.
I guess its M. ibericus but I am not sure if this is still the up to date taxonomical status