17 daughter colonies of the 4a were tested:
CH-51-15-3110-1989 CH-51-15-3111-1989 CH-51-15-3112-1989 CH-51-15-3113-1989 CH-51-15-3114-1989 CH-51-15-3115-1989 CH-51-15-3116-1989 CH-51-15-3371-1989 CH-51-15-3372-1989 CH-51-15-3373-1989 CH-51-15-3374-1989 CH-51-15-3516-1990 CH-51-15-3517-1990 CH-51-15-3518-1990 CH-51-15-3519-1990 CH-51-15-3520-1990 CH-51-15-4288-1990
6 tested queens were mated at the mating station:
CH-51-10-3597-1991 CH-51-10-3598-1991 CH-51-10-3599-1991 CH-51-15-3614-1991 CH-51-15-3615-1991 CH-51-15-3616-1991
39 daughter colonies of queens mated at the mating station were tested:
CH-51-2-4814-1993 CH-51-10-4080-1992 CH-51-10-4081-1992 CH-51-10-4082-1992 CH-51-10-4083-1992 CH-51-10-4084-1992 CH-51-10-4085-1992 CH-51-10-5208-1994 CH-51-10-5209-1994 CH-51-10-5210-1994 CH-51-10-5211-1994 CH-51-10-5212-1994 CH-51-10-5213-1994 CH-51-10-5214-1994 CH-51-10-5215-1994 CH-51-10-5216-1994 CH-51-10-5217-1994 CH-51-10-5218-1994 CH-51-10-5331-1994 CH-51-10-5332-1994 CH-51-16-4704-1992 CH-51-16-4705-1992 CH-51-16-4706-1992 CH-51-20-4224-1992 CH-51-20-4225-1992 CH-51-20-4226-1992 CH-51-20-4227-1992 CH-51-20-4228-1992 CH-51-20-4229-1992 CH-51-20-4230-1992 CH-51-20-4231-1992 CH-51-20-4550-1993 CH-51-20-4551-1993 CH-51-20-4552-1993 CH-51-20-4553-1993 CH-51-20-4878-1993 CH-51-20-4879-1993 CH-51-20-4880-1993 CH-51-20-4881-1993