43 daughter colonies of the 4a were tested:
DE-4-1-81-1993 DE-4-1-82-1993 DE-4-1-83-1993 DE-4-1-85-1993 DE-4-1-87-1993 DE-4-1-88-1993 DE-4-1-89-1993 DE-4-1-90-1993 DE-4-1-92-1993 DE-4-9-48-1994 DE-4-9-49-1994 DE-4-9-51-1994 DE-4-9-52-1994 DE-4-9-53-1994 DE-4-9-54-1994 DE-4-9-56-1994 DE-4-9-70-1993 DE-4-9-71-1993 DE-4-9-72-1993 DE-4-9-73-1994 DE-4-9-74-1994 DE-4-9-75-1993 DE-4-9-75-1994 DE-4-9-76-1993 DE-4-9-77-1993 DE-4-9-80-1993 DE-4-9-81-1993 DE-4-9-82-1993 DE-4-9-94-1994 DE-4-9-200-1993 DE-4-9-202-1993 DE-4-9-203-1993 DE-4-9-280-1993 DE-4-9-282-1993 DE-4-9-283-1993 DE-4-9-285-1993 DE-4-9-286-1993 DE-4-9-401-1994 DE-4-9-402-1994 DE-4-9-408-1994 DE-4-9-428-1994 DE-4-9-429-1994 DE-4-9-430-1994
10 tested queens were mated at the mating station:
DE-4-9-1-1997 DE-4-9-12-1997 DE-4-9-38-1997 DE-4-9-39-1997 DE-4-9-223-1997 DE-4-9-285-1997 DE-4-9-289-1997 DE-4-9-290-1997 DE-4-9-336-1997 DE-4-9-406-1997
4 daughter colonies of queens mated at the mating station were tested:
DE-4-247-48-2000 DE-4-247-61-2000 DE-4-247-70-2000 DE-4-247-74-2000