No daughter colonies of the 4a were tested yet.
1 tested queens were mated at the mating station:
DE-2-176-144-1995
6 daughter colonies of queens mated at the mating station were tested:
DE-2-176-202-1996 DE-2-176-210-1996 DE-2-176-221-1997 DE-2-176-230-1997 DE-2-176-249-1997 DE-2-176-255-1997