8 daughter colonies of the 4a were tested:
DE-4-1-86-1995 DE-4-1-113-1995 DE-4-1-123-1995 DE-4-1-183-1995 DE-4-1-195-1995 DE-4-1-196-1995 DE-4-1-200-1995 DE-4-1-202-1995
1 tested queens were mated at the mating station:
DE-16-313-26-1997
10 daughter colonies of queens mated at the mating station were tested:
DE-16-24-225-1999 DE-16-24-227-1999 DE-16-28-676-1999 DE-16-28-677-1999 DE-16-28-678-1999 DE-16-28-679-1999 DE-16-28-680-1999 DE-16-28-684-1999 DE-16-28-691-1999 DE-16-28-693-1999