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
5 tested queens were mated at the mating station:
CH-51-108-2949-1989 CH-51-108-2950-1989 CH-51-108-2951-1989 CH-51-108-2952-1989 CH-51-108-2953-1989
2 daughter colonies of queens mated at the mating station were tested:
CH-51-108-4893-1993 CH-51-108-5322-1994