12 daughter colonies of the 4a were tested:
DE-4-21-185-1972 DE-4-21-186-1972 DE-4-21-187-1972 DE-4-21-188-1972 DE-4-21-189-1972 DE-4-21-190-1972 DE-4-21-191-1972 DE-4-21-192-1972 DE-4-21-193-1972 DE-4-21-195-1972 DE-4-21-196-1972 DE-4-21-291-1973
8 tested queens were mated at the mating station:
DE-4-45-416-1974 DE-4-45-431-1974 DE-4-45-432-1974 DE-4-45-435-1974 DE-4-45-441-1974 DE-4-45-443-1974 DE-4-45-444-1974 DE-4-45-447-1974
7 daughter colonies of queens mated at the mating station were tested:
DE-4-45-702-1976 DE-4-45-703-1976 DE-4-45-704-1976 DE-4-45-705-1976 DE-4-45-706-1976 DE-4-45-708-1976 DE-4-45-709-1976