27 daughter colonies of the 4a were tested:
CH-51-50-6096-1998 CH-51-50-6097-1998 CH-51-52-6160-1997 CH-51-52-6161-1997 CH-51-52-6162-1998 CH-51-52-6164-1998 CH-51-52-6165-1998 CH-51-52-6166-1998 CH-51-52-6167-1998 CH-51-52-6590-1998 CH-51-52-6593-1998 CH-51-58-5782-1997 CH-51-58-5783-1997 CH-51-58-6157-1998 CH-51-58-6158-1998 CH-51-58-6159-1998 CH-51-58-6433-1998 CH-51-67-6582-1998 CH-51-67-6583-1998 CH-51-67-6584-1998 CH-51-67-6585-1998 CH-51-67-6586-1998 CH-51-67-6587-1998 CH-51-68-6320-1998 CH-51-68-6321-1998 CH-51-68-6836-1998 CH-51-68-6837-1999
7 tested queens were mated at the mating station:
CH-51-67-6729-1999 CH-51-67-6731-1999 CH-51-67-6732-1999 CH-51-67-6733-1999 CH-51-67-6734-1999 CH-51-67-6735-1999 CH-51-67-6736-1999
No daughter colonies from colonies mated at the station were tested yet.