9 daughter colonies of the 4a were tested:
CH-51-58-2205-1986 CH-51-58-2206-1986 CH-51-58-2207-1986 CH-51-58-2208-1986 CH-51-58-2209-1986 CH-51-58-2284-1986 CH-51-58-2285-1986 CH-51-58-2286-1986 CH-51-58-2287-1986
5 tested queens were mated at the mating station:
CH-51-52-2712-1988 CH-51-52-2713-1988 CH-51-52-2714-1988 CH-51-52-2715-1988 CH-51-58-3020-1988
17 daughter colonies of queens mated at the mating station were tested:
CH-51-50-3765-1991 CH-51-50-3766-1991 CH-51-50-3767-1991 CH-51-50-3768-1991 CH-51-50-3769-1991 CH-51-50-3770-1991 CH-51-50-3771-1991 CH-51-50-3772-1991 CH-51-52-2982-1989 CH-51-52-2983-1989 CH-51-52-2987-1989 CH-51-55-3049-1989 CH-51-61-3314-1990 CH-51-61-3315-1990 CH-51-61-3316-1990 CH-51-61-3317-1990 CH-51-66-3050-1989