7 daughter colonies of the 4a were tested:
DE-8-1-1607-1990 DE-8-1-1608-1990 DE-8-1-1625-1990 DE-8-1-1635-1990 DE-8-1-1638-1990 DE-8-1-1640-1990 DE-8-1-1643-1990
6 tested queens were mated at the mating station:
DE-8-4-6-1990 DE-8-4-7-1990 DE-8-4-13-1990 DE-8-4-16-1990 DE-8-4-17-1990 DE-8-4-18-1990
9 daughter colonies of queens mated at the mating station were tested:
DE-8-4-24-1992 DE-8-4-25-1992 DE-8-4-27-1992 DE-8-4-28-1992 DE-8-4-30-1992 DE-8-4-31-1992 DE-8-4-34-1992 DE-8-4-35-1992 DE-8-4-37-1992