42 daughter colonies of the 4a were tested:
CH-51-4-4723-1993 CH-51-4-4724-1993 CH-51-4-5329-1993 CH-51-6-4245-1991 CH-51-6-4246-1991 CH-51-6-4247-1991 CH-51-6-4248-1991 CH-51-6-4249-1991 CH-51-6-4594-1993 CH-51-6-5311-1993 CH-51-8-4530-1993 CH-51-8-4531-1993 CH-51-8-4532-1993 CH-51-8-4533-1993 CH-51-8-4910-1993 CH-51-8-4911-1993 CH-51-8-4912-1993 CH-51-12-4559-1993 CH-51-12-4560-1993 CH-51-12-4561-1993 CH-51-12-4562-1993 CH-51-12-4563-1993 CH-51-19-4739-1993 CH-51-19-4740-1993 CH-51-19-4741-1993 CH-51-19-4742-1993 CH-51-19-4982-1993 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-51-57-5194-1993 CH-51-65-4505-1993 CH-51-65-4506-1993 CH-51-65-4507-1993 CH-51-65-4508-1993 CH-51-65-4509-1993 CH-51-65-4510-1993 CH-51-65-4511-1993 CH-51-114-5273-1993 CH-51-168-5175-1994
3 tested queens were mated at the mating station:
CH-51-57-5610-1996 CH-51-65-5761-1996 CH-51-65-5763-1996
No daughter colonies from colonies mated at the station were tested yet.