No daughter colonies of the 4a were tested yet.
1 tested queens were mated at the mating station:
DE-13-4-74-1965
7 daughter colonies of queens mated at the mating station were tested:
DE-13-4-98-1966 DE-13-4-99-1966 DE-13-4-102-1966 DE-13-4-103-1966 DE-13-4-104-1966 DE-13-4-106-1966 DE-13-4-107-1966