No daughter colonies of the 4a were tested yet.
12 tested queens were mated at the mating station:
DE-6-164-572-1970 DE-8-164-517-1970 DE-8-164-519-1970 DE-8-164-535-1970 DE-8-164-546-1970 DE-8-164-551-1970 DE-8-164-552-1970 DE-8-164-553-1970 DE-8-164-554-1970 DE-8-164-555-1970 DE-8-164-559-1970 DE-8-164-571-1970
No daughter colonies from colonies mated at the station were tested yet.