15 daughter colonies of the 4a were tested:
DE-6-1-28159-1990 DE-6-1-28160-1990 DE-6-1-28163-1990 DE-6-1-28164-1990 DE-6-1-28171-1990 DE-6-1-28173-1990 DE-6-1-28174-1990 DE-6-1-28289-1990 DE-6-1-30150-1991 DE-6-1-30154-1991 DE-6-1-30156-1991 DE-6-1-30157-1991 DE-6-1-30159-1991 DE-6-1-30161-1991 DE-6-1-30162-1991
18 tested queens were mated at the mating station:
DE-6-19-1695-1992 DE-6-19-1696-1992 DE-6-19-1698-1992 DE-6-20-344-1992 DE-6-20-345-1992 DE-6-20-346-1992 DE-6-20-349-1992 DE-6-20-354-1992 DE-6-20-357-1992 DE-17-27-1-1992 DE-17-27-2-1992 DE-17-27-3-1992 DE-17-27-4-1992 DE-17-27-9-1992 DE-17-27-10-1992 DE-17-27-11-1992 DE-17-27-13-1992 DE-17-27-14-1992
12 daughter colonies of queens mated at the mating station were tested:
DE-6-19-1796-1993 DE-6-19-1797-1993 DE-6-19-1798-1993 DE-6-19-1799-1993 DE-6-20-776-1995 DE-6-20-780-1995 DE-6-20-783-1995 DE-6-20-785-1995 DE-6-20-786-1995 DE-6-20-789-1995 DE-6-20-792-1995 DE-6-20-793-1995