No daughter colonies of the 4a were tested yet.
1 tested queens were mated at the mating station:
DE-2-101-91144-1991
5 daughter colonies of queens mated at the mating station were tested:
DE-2-101-1-1993 DE-2-101-2-1993 DE-2-101-4-1993 DE-2-101-10-1993 DE-2-101-11-1993