13 daughter colonies of the 4a were tested:
CH-51-113-4753-1993 CH-51-113-4754-1993 CH-51-113-4755-1993 CH-51-113-4756-1993 CH-51-113-4757-1993 CH-51-113-4758-1993 CH-51-113-4759-1993 CH-51-113-4760-1993 CH-51-113-4761-1993 CH-51-113-4762-1993 CH-51-113-4763-1993 CH-51-113-4764-1993 CH-51-113-4765-1993
33 tested queens were mated at the mating station:
CH-51-2-4820-1994 CH-51-2-4821-1994 CH-51-2-4822-1994 CH-51-2-4823-1994 CH-51-4-5002-1994 CH-51-4-5003-1994 CH-51-4-5004-1994 CH-51-4-5005-1994 CH-51-4-5006-1994 CH-51-4-5007-1994 CH-51-4-5330-1994 CH-51-20-5280-1994 CH-51-20-5281-1994 CH-51-22-4825-1994 CH-51-22-4827-1994 CH-51-22-4828-1994 CH-51-22-4829-1994 CH-51-109-5050-1994 CH-51-109-5051-1994 CH-51-110-4968-1994 CH-51-110-4969-1994 CH-51-110-4970-1994 CH-51-110-4971-1994 CH-51-110-4978-1994 CH-51-110-4979-1994 CH-51-110-5243-1994 CH-51-110-5244-1994 CH-51-110-5245-1994 CH-51-110-5249-1994 CH-51-113-5087-1994 CH-51-113-5088-1994 CH-51-114-5131-1994 CH-51-241-5086-1994
16 daughter colonies of queens mated at the mating station were tested:
CH-51-4-5687-1996 CH-51-8-5470-1995 CH-51-8-5471-1995 CH-51-8-5472-1995 CH-51-65-5762-1997 CH-51-110-5437-1996 CH-51-110-5888-1996 CH-51-110-5889-1996 CH-51-110-5890-1996 CH-51-110-5891-1996 CH-51-110-5892-1997 CH-51-110-5893-1997 CH-51-110-5894-1997 CH-51-110-5895-1997 CH-51-110-5896-1997 CH-51-110-5897-1997