Not quite. Lufthansa Cityline, Eurowings, Augsburg, etc, have merged into Lufthansa Regional. LH Cityline is the only one, however, who carries the official Lufthansa logo on its tails. The other one have the blue/yellow dotted Regional logo.
The pilots of these Lufthansa Regional airlines donīt have the same bidding rights as the mainline pilots. Lufthansa Cargo pilots do have them. As well as the Condor and Germanwings pilots. At the moment, the only way into Lufthansa mainline for regional pilots is to apply with Lufthansa Cargo. But even this method is very limited now.
As to a comparison of the wages of the regional pilots to the mainline ones, I donīt really know the details. But it is a bit less for sure.