No daughter colonies of the 4a were tested yet.
6 tested queens were mated at the mating station:
DE-16-35-3-1968 DE-16-35-7-1968 DE-16-35-9-1968 DE-16-35-10-1968 DE-16-35-11-1968 DE-16-35-12-1968
6 daughter colonies of queens mated at the mating station were tested:
DE-16-35-1-1971 DE-16-35-2-1971 DE-16-35-5-1971 DE-16-35-6-1971 DE-16-35-8-1971 DE-16-35-10-1971