Balenieri sounds of course Italian, so I think the spelling is right. Anyway I would say that is a very uncommon surname. In familysearch.org there are no records for Rovinj (in Italian Rovigno) at the indicated year, unfortunatly. The only things I found is the brother emigrated in Australia, but ...

I am sure that you have already tried this way, but simply searching for Ferlito Alfio in the phone book of Catania, there are 6 results. This is the link with address and phone:

http://www.paginebianche.it/ricerca?qs=ferlito+alfio&dv=ct

You can try to contact them. There are other also in ...