You're welcome. I use Litoria for the same reason you use Pelodryas, it seems to be the general consensus. Personally, however, I rather use Pelodryas for caerulea as it seems to be built quite differently from other members of the genus Litoria, such as infrafrenata and chloris. Also there this whole subfamily name thing, Pelodryadinae. It seems weird to have a subfamily in where there are no frogs bearing the genus name Pelodryas.
So in conclussion, if it were up to me I would place caerulea and splendida back into the genus Pelodryas.