The pair are both returning from injury.
Simon will wear the captain's armband alongside first-five Ruahei Demant who led the team during the Pacific Four Series, which the Black Ferns won.
The team now plays two tests against Australia for the Laurie O'Reilly Cup, with the first match in Ōtautahi this weekend.
The Waikato loose forward was named Black Ferns Player of the Year in 2021 but missed June's series with a knee injury.
McMenamin, the Black Ferns Player of the Year in 2019, has recovered from spinal surgery to reclaim her place.