The 23-year-old wing Lynagh, son of former Wallabies' World Cup winner Michael Lynagh, was eligible to play for one of three countries - England, Australia or Italy - until he plumped for the Azzurri and made his debut in this year's Six Nations, starting in Italy's wins over Scotland and Wales.
He also then played two further matches, including Italy's last game, a victory over Japan.
Now Quesada has stuck with Lynagh in his squad, while giving Mirco Spagnolo his first start, with the prop having made eight appearances from the bench.
He has gone for experience, with fullback Ange Capuozzo, flanker Sebastian Negri and fly-half Paolo Garbisi all in the side.
The coach has stuck with the centre pairing of Juan Ignacio Brex and Tommaso Menoncello who impressed in the Six Nations, two of nine Benetton players in the starting side, which is captained by their club teammate, flanker Michele Lamaro.
"It would have been very dangerous to change too much in four training sessions," Quesada said.
"We have added two or three new things because we want to implement them in view of the next games and the Six Nations, but we did not want to take the risk of making too many changes because we want to give continuity to the technical project carried out so far."
Tommaso Allan is among the replacements after the fly-half returned to the squad following a break from international rugby earlier this year, and Dino Lamb is also onthe bench, in the lock's first call-up by Quesada after returning from injury.
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