I'm sorry, but this is en.Wiki, thus English is used here. It seems like you are confusing political parties, which can be parliamentary-only (as in the case of the FLD) or, for that matter, extra-parliamentary (there are even parties which don't participate in elections), with parliamentary groups/parties. I perfectly understand your point, but I still think there is a difference from the FLD and the other cases you mentioned. Finally, let me tell you once again that this is not the place for such a discussion; please use Talk:List of political parties in Italy or other talk pages. See you there,