No daughter colonies of the 4a were tested yet.
9 tested queens were mated at the mating station:
DE-4-239-2-1997 DE-4-239-3-1997 DE-4-239-5-1997 DE-4-239-6-1997 DE-4-239-7-1997 DE-4-239-8-1997 DE-4-239-9-1997 DE-4-239-22-1997 DE-4-239-24-1997
No daughter colonies from colonies mated at the station were tested yet.