No daughter colonies of the 4a were tested yet.
7 tested queens were mated at the mating station:
DE-6-6-2-1993 DE-6-6-6-1993 DE-6-6-9-1993 DE-6-6-10-1993 DE-6-6-15-1993 DE-6-6-16-1993 DE-6-6-17-1993
No daughter colonies from colonies mated at the station were tested yet.