1 . SOCIAL SECURITY FOR MIGRANT WORKERS - COMMUNITY RULES - BENEFITS GRANTED TO A MIGRANT WORKER OR HIS DEPENDANTS UNDER THE LEGISLATION OF A SINGLE MEMBER STATE - APPLICATION OF THE COMMUNITY RULES IN SUCH A WAY AS TO DEPRIVE THE PARTIES CONCERNED OF THE BENEFITS IN QUESTION - NOT PERMISSIBLE ( EEC TREATY , ART . 51 ) 2 . SOCIAL SECURITY FOR MIGRANT WORKERS - ORPHANS ' BENEFITS - BENEFITS PAID BY THE STATE OF RESIDENCE - BENEFITS LOWER THAN THOSE PAYABLE UNDER THE LEGISLATION OF ANOTHER MEMBER STATE ALONE - ENTITLEMENT TO THE HIGHER AMOUNT - ENTITLEMENT TO A SUPPLEMENT TO THE BENEFIT ( REGULATION NO 1408/71 OF THE COUNCIL , ARTS 77 AND 78 )