Nieuport 11 & 16, part five. The 'Bébé' in Italy.

 

Italy employed the Nieuport 11 in large quantities to supplement and replace the outdated Nieuport 10. Italian aircraft manufacturer Macchi, which initially was a subsidiary of Nieuport,  built the Nieuport 11 locally. In fact, a total of 450 'Bébés' were manufactured in Italy, plus additional 93, out of 200 originally ordered, by the Officine Elettro-Ferroviarie in Milan. 
The Nieuport 11 was initially employed in Italy in 1916 by 70a Squadriglia (a squadron-sized unit), based at Santa Caterina, north-eastern Italy. The unit was rebased to Udine, where the supreme command was located. When destined in this area, 70a Squadriglia performed offensive patrols over the frontlines. By December 1916 the majority of the 56 enemy airplanes downed by Italian fighters were dispatched by Nieuport 11s. By this time, Italian pilots complained about the Lewis gun, which was difficult to reload while in flight, and the Nieuport 11 could just carry a small number of additional magazines. By late 1916 some few 'Bébés' were equipped with the Le Prieur rocket system to attack enemy balloons.
During 1916 there were four squadriglias employing the Nieuport 11; 70, 71, 75 and 76a.
By early 1917 there were six additional squadrons: 77, 78, 79, 80, 81 and 82a, plus 83a Squadriglia based at Kremain, Macedonia, 85a Squadriglia at Piskupi, Albania and the Sezione (Section - a flight-sized unit) Nieuport at Belluno. These two last squadriglias were, in spite of their name, also flight-sized.
During 1916 and 1917 Macchi was able to produce between 35 and 45 aircraft per month, being Nieuport 11 most of them. However, by early 1917 they were being replaced by the Nieuport 17 in production lines, so by October 1917 only nine squadriglias still had the Nieuport 11 in active service: 70, 71, 72, 75, 76,  78, 79, 82 and 85, this last one still operating from Piskupi, in Albania. 
By late 1917 the number of Nieuport 11-equipped squadriglias was reduced to six: 71, 72, 75, 76, 82 and 91. 
The Nieuport 11 was, by 1918, outdated and being replaced by the better Nieuport 17 as it became available, so the Nieuport 11 was reassigned to training units. By February 1918 there were just 22 Nieuport 11 in service, with 85a Squadriglia, in Albania, being the last operator of the type as they kept it until 4th November 1918.

Sources:
1st Flying Machines Press - French Aircraft of the First World War
2nd https://it.wikipedia.org/wiki/Nieuport_11 (translated)
3rd https://it.wikipedia.org/wiki/70ª_Squadriglia_caccia (translated)
4th https://it.wikipedia.org/wiki/71ª_Squadriglia_caccia (translated)
and so on for every squadriglia.