Opera Grove has an article entitled "Dance". Mostly, this is about French opera, but it does say, in the Nineteenth Century section, "In Italy, where they had never been institutionalized, opera dances occurred less frequently than in France, suites in the French manner being rare (Rossini's Armida, 1817; Donizetti's L'assedio di Calais, 1836)." It goes on to mention dance in Verdi's non-Paris compositions - Ernani (1844), Rigoletto (1851), La traviata (1853), Ballo (1859).

I've actually seen L'assedio di Calais (at Wexford, where else?), but have no recollection of any ballet in that rather sombre work.