16 daughter colonies of the 4a were tested:
DE-4-52-90-1974 DE-4-52-91-1974 DE-4-52-93-1974 DE-4-52-94-1974 DE-4-52-97-1974 DE-4-52-98-1974 DE-4-52-100-1974 DE-4-52-106-1974 DE-4-52-164-1975 DE-4-52-165-1975 DE-4-52-166-1975 DE-4-52-167-1975 DE-4-52-168-1975 DE-4-52-170-1975 DE-4-52-171-1975 DE-4-52-172-1975
12 tested queens were mated at the mating station:
DE-4-9-474-1975 DE-4-9-476-1975 DE-4-9-482-1975 DE-4-9-483-1975 DE-4-52-164-1975 DE-4-52-165-1975 DE-4-52-166-1975 DE-4-52-167-1975 DE-4-52-168-1975 DE-4-52-170-1975 DE-4-52-171-1975 DE-4-52-172-1975
6 daughter colonies of queens mated at the mating station were tested:
DE-4-52-223-1976 DE-4-52-224-1976 DE-4-52-225-1976 DE-4-52-228-1976 DE-4-52-229-1976 DE-4-52-238-1976