3 daughter colonies of the 4a were tested:
CH-51-20-4238-1991 CH-51-20-4548-1992 CH-51-20-4549-1992
6 tested queens were mated at the mating station:
CH-51-20-4554-1993 CH-51-20-4555-1993 CH-51-20-4556-1993 CH-51-20-4557-1993 CH-51-20-4558-1993 CH-51-20-4880-1993
No daughter colonies from colonies mated at the station were tested yet.