5 daughter colonies of the 4a were tested:
DE-15-27-14-1991 DE-15-27-15-1991 DE-15-27-16-1991 DE-15-29-25-1991 DE-15-29-26-1991
8 tested queens were mated at the mating station:
DE-15-27-117-1993 DE-15-27-118-1993 DE-15-27-119-1993 DE-15-27-128-1993 DE-15-27-144-1993 DE-15-29-129-1993 DE-15-29-130-1993 DE-15-29-131-1993
7 daughter colonies of queens mated at the mating station were tested:
DE-15-27-24-1995 DE-15-27-25-1995 DE-15-27-26-1995 DE-15-27-156-1995 DE-15-27-161-1995 DE-15-27-169-1996 DE-15-29-197-1996