8 daughter colonies of the 4a were tested:
CH-51-20-5278-1994 CH-51-20-5279-1994 CH-51-20-5280-1994 CH-51-20-5281-1994 CH-51-20-5454-1995 CH-51-20-5457-1995 CH-51-20-5458-1995 CH-51-20-5459-1995
8 tested queens were mated at the mating station:
CH-51-20-5713-1996 CH-51-20-5716-1996 CH-51-20-5717-1996 CH-51-20-5721-1996 CH-51-20-5724-1996 CH-51-20-5726-1996 CH-51-20-5728-1996 CH-51-20-5729-1996
No daughter colonies from colonies mated at the station were tested yet.