On adding WCF Service reference element is not created

Hi Friends,
I am using x.509 certificate based authentication in my WCF service. In development stage, I created a x.509 certificate using makecert utility. Installed it on my local machine. Added the reference to the certificate in my WCF service. When I added the service reference to my Test App, following element got created in the app.config file of the Test App.
            <endpoint address="http://localhost/MyService/MyService.svc"
                binding="wsHttpBinding" bindingConfiguration="wsHttpEndpoint"
    contract="MyService.IMyService" name="wsHttpEndpoint">
                <identity>
  &nbs ...