No daughter colonies of the 4a were tested yet.
18 tested queens were mated at the mating station:
DE-8-82-753-1975 DE-8-82-755-1975 DE-8-82-759-1975 DE-8-82-760-1975 DE-8-82-761-1975 DE-8-82-765-1975 DE-8-82-766-1975 DE-8-82-774-1975 DE-8-136-3181-1975 DE-8-136-3182-1975 DE-8-136-3183-1975 DE-8-136-3185-1975 DE-8-136-3186-1975 DE-8-136-3187-1975 DE-8-136-3188-1975 DE-8-136-3189-1975 DE-8-136-3190-1975 DE-8-136-3191-1975
20 daughter colonies of queens mated at the mating station were tested:
DE-8-136-3411-1976 DE-8-136-3412-1976 DE-8-136-3413-1976 DE-8-136-3414-1976 DE-8-136-3420-1976 DE-8-136-3421-1976 DE-8-136-3549-1977 DE-8-136-3561-1977 DE-8-136-3563-1977 DE-8-136-3564-1977 DE-8-136-3634-1977 DE-8-136-3636-1977 DE-8-136-3637-1977 DE-8-136-3638-1977 DE-8-136-3639-1977 DE-8-136-3641-1977 DE-8-136-3642-1977 DE-8-136-3643-1977 DE-8-136-3645-1977 DE-8-136-3646-1977