No daughter colonies of the 4a were tested yet.
7 tested queens were mated at the mating station:
DE-16-2-536-1976 DE-16-2-540-1976 DE-16-2-541-1976 DE-16-2-543-1976 DE-16-2-545-1976 DE-16-2-548-1976 DE-16-2-551-1976
13 daughter colonies of queens mated at the mating station were tested:
DE-16-2-870-1977 DE-16-2-874-1977 DE-16-2-879-1977 DE-16-2-881-1977 DE-16-2-883-1977 DE-16-2-892-1977 DE-16-2-1040-1978 DE-16-2-1043-1978 DE-16-2-1046-1978 DE-16-2-1047-1978 DE-16-2-1048-1978 DE-16-2-1063-1978 DE-16-2-1247-1979