Italy will assemble in Rome on May 24 before travelling to Sydney the following day and training in the New South Wales capital city for a week before flying to Suva where they will face Fiji on June 7 in their tour opener.
The Azzurri will then play Samoa in Apia on June 14 and Japan in Tokyo on June 21.
Powerful Number Eight Vosawai officially put pen to paper this month on a contract that will see him move to Blues from RaboDirect PRO12 rivals Benetton Treviso.
The exciting Fijian-born back row, who has won 14 caps for Italy, becomes the latest recruit ahead of next season. Blues have also signed New Zealand international lock forward Jarrad Hoeata, Exeter prop Craig Mitchell, Scarlets flanker Josh Turnbull, Gloucester scrum half Tavis Knoyle, Bristol wing George Watkins and Dragons back row Ieuan Jones.
Italy 30-man squad:
Matias Aguero ,Dario Chistolini, Lorenzo Cittadini, Alberto De Marchi, Andrea De Marchi, Leonardo Ghiraldini, Davide Giazzon, Andrea Manici, George Fabio Biagi, Marco Bortolami, Marco Fuser, Quintin Geldenhuys, Robert Barbieri, Mauro Bergamasco, Paul Derbyshire, Joshua Furno, Manoa Vosawai, Guglielmo Palazzani, Tito Tebaldi, Tommaso Allan, Luciano Orquera, Michele Campagnaro, Angelo Esposito, Gonzalo Garcia, Tommaso Iannone, Andrea Masi, Luke McLean, Leonardo Sarto, Alberto Sgarbi, Giovambattista Venditti