The four Italian opera composers listed in the crossword are Vincenzo BELLINI, Gioachino Rossini, Giacomo Puccini, and Giuseppe Verdi. BELLINI was a 19th century composer known for his lyrical melodies and harmonic innovations. Rossini was a prolific composer of operas and other works, and is best known for his comic operas such as The Barber of Seville. Puccini was an influential composer of the late 19th and early 20th centuries, and is best known for his operas such as La Bohème and Madama Butterfly. Verdi was a major figure in Italian opera during the 19th century, and is best known for his operas such as Rigoletto and Aida.