No daughter colonies of the 4a were tested yet.
16 tested queens were mated at the mating station:
DE-16-18-200-1976 DE-16-18-201-1976 DE-16-18-202-1976 DE-16-18-203-1976 DE-16-18-204-1976 DE-16-18-205-1976 DE-16-18-206-1976 DE-16-18-210-1976 DE-16-18-214-1976 DE-16-18-216-1976 DE-16-18-217-1976 DE-16-18-218-1976 DE-16-18-219-1976 DE-16-18-220-1976 DE-16-18-221-1976 DE-16-18-222-1976
No daughter colonies from colonies mated at the station were tested yet.