6 daughter colonies of the 4a were tested:
DE-4-240-12-1993 DE-4-240-14-1993 DE-4-240-15-1993 DE-4-240-16-1993 DE-4-240-18-1993 DE-4-240-20-1993
12 tested queens were mated at the mating station:
DE-4-240-91-1995 DE-4-240-93-1995 DE-4-240-94-1995 DE-4-240-99-1995 DE-4-240-101-1995 DE-4-240-102-1995 DE-4-240-103-1995 DE-4-240-104-1995 DE-4-240-105-1995 DE-4-240-107-1995 DE-4-240-108-1995 DE-4-240-110-1995
12 daughter colonies of queens mated at the mating station were tested:
DE-4-240-175-1997 DE-4-240-177-1997 DE-4-240-179-1997 DE-4-240-181-1997 DE-4-240-183-1997 DE-4-240-184-1997 DE-4-240-185-1997 DE-4-240-187-1997 DE-4-240-191-1997 DE-4-240-192-1997 DE-4-240-194-1997 DE-4-240-197-1997