35 daughter colonies of the 4a were tested:
CH-51-4-2411-1987 CH-51-4-2412-1987 CH-51-4-2413-1987 CH-51-4-2414-1987 CH-51-4-2415-1987 CH-51-4-2416-1987 CH-51-4-2417-1987 CH-51-4-2418-1987 CH-51-4-2419-1987 CH-51-4-2420-1987 CH-51-4-2852-1987 CH-51-4-2853-1987 CH-51-4-2854-1987 CH-51-4-2855-1987 CH-51-4-2856-1987 CH-51-4-2857-1987 CH-51-4-3076-1987 CH-51-4-3077-1987 CH-51-4-3078-1987 CH-51-4-3079-1987 CH-51-4-3080-1987 CH-51-6-2833-1987 CH-51-6-3006-1987 CH-51-6-3534-1987 CH-51-7-3144-1988 CH-51-15-2366-1987 CH-51-15-2367-1987 CH-51-15-2368-1987 CH-51-15-2369-1987 CH-51-15-2370-1987 CH-51-15-2371-1987 CH-51-15-2372-1987 CH-51-15-2373-1987 CH-51-15-2374-1987 CH-51-15-2375-1987
7 tested queens were mated at the mating station:
CH-51-7-3244-1989 CH-51-10-2939-1989 CH-51-10-2940-1989 CH-51-10-3028-1989 CH-51-10-3029-1989 CH-51-10-3030-1989 CH-51-10-3223-1989
18 daughter colonies of queens mated at the mating station were tested:
CH-51-7-3734-1991 CH-51-7-3735-1991 CH-51-7-3736-1991 CH-51-7-3737-1991 CH-51-7-4391-1990 CH-51-7-4661-1991 CH-51-10-3597-1991 CH-51-10-3598-1991 CH-51-10-3599-1991 CH-51-10-3600-1991 CH-51-10-4525-1992 CH-51-10-4526-1992 CH-51-10-4528-1991 CH-51-10-4529-1992 CH-51-15-3611-1991 CH-51-15-3612-1991 CH-51-15-3613-1991 CH-51-16-3258-1990