SAP user,
Local members are inherently Local to the report. Since you have two reports, I don't know of a way to reference them by name. If these are the only two section that you need to sum, try using an Excel formula either INDEX, SUMIF or your favorite reference function to come up with the total. (BTW this total doesn't have to be part of report 2)
The other option is combining the two reports into one ( try stacking right to left instead of top to bottom) and in that case you can create another local member that would add localmember1 and localmember2 together. (I realize this might not be an option based on reqs but it's worth a question)
Hope this helps!
Akos