No daughter colonies of the 4a were tested yet.
7 tested queens were mated at the mating station:
DE-6-42-1354-1986 DE-6-42-1355-1986 DE-6-42-1356-1986 DE-6-42-1357-1986 DE-6-42-1358-1986 DE-6-42-1359-1986 DE-6-42-1360-1986
23 daughter colonies of queens mated at the mating station were tested:
DE-6-19-1418-1988 DE-6-19-1420-1988 DE-6-19-1421-1988 DE-6-19-1460-1988 DE-6-19-1461-1988 DE-6-19-1462-1988 DE-6-19-1463-1988 DE-6-19-1464-1988 DE-6-19-1466-1988 DE-6-19-1467-1988 DE-6-42-1460-1988 DE-6-42-1461-1988 DE-6-42-1462-1988 DE-6-42-1463-1988 DE-6-42-1464-1988 DE-6-42-1466-1988 DE-6-42-1467-1988 DE-6-42-1470-1988 DE-6-42-1471-1988 DE-6-42-1472-1988 DE-6-42-1473-1988 DE-6-42-1474-1988 DE-6-42-1475-1988