22 daughter colonies of the 4a were tested:
CH-51-4-3788-1991 CH-51-4-3789-1991 CH-51-4-3790-1991 CH-51-4-3791-1991 CH-51-4-3792-1991 CH-51-4-3793-1991 CH-51-4-3794-1991 CH-51-4-3795-1991 CH-51-4-4395-1991 CH-51-4-4396-1991 CH-51-4-4397-1991 CH-51-4-4398-1991 CH-51-4-4399-1991 CH-51-4-4400-1991 CH-51-9-3757-1991 CH-51-9-3758-1991 CH-51-9-3759-1991 CH-51-9-3760-1991 CH-51-9-3761-1991 CH-51-9-3762-1991 CH-51-9-3763-1991 CH-51-9-3764-1991
9 tested queens were mated at the mating station:
CH-51-4-4722-1992 CH-51-8-4411-1992 CH-51-19-4002-1992 CH-51-19-4003-1992 CH-51-19-4004-1992 CH-51-19-4005-1992 CH-51-19-4006-1992 CH-51-19-4007-1992 CH-51-168-4482-1992
5 daughter colonies of queens mated at the mating station were tested:
CH-51-19-4734-1993 CH-51-19-4735-1993 CH-51-19-4736-1993 CH-51-19-4737-1993 CH-51-19-4738-1993