No daughter colonies of the 4a were tested yet.
24 tested queens were mated at the mating station:
DE-6-19-1993-1997 DE-6-19-1994-1997 DE-6-19-1995-1997 DE-6-19-1996-1997 DE-6-19-1997-1997 DE-6-19-1998-1997 DE-6-19-1999-1997 DE-6-19-2000-1997 DE-6-19-2010-1997 DE-6-19-2011-1997 DE-6-19-2012-1997 DE-6-19-2013-1997 DE-6-19-2015-1997 DE-6-19-2016-1997 DE-6-19-2017-1997 DE-6-19-2018-1997 DE-6-19-2019-1997 DE-6-19-2020-1997 DE-6-19-2021-1997 DE-6-62-2001-1997 DE-6-62-2002-1997 DE-6-62-2003-1997 DE-6-62-2004-1997 DE-6-62-2005-1997
No daughter colonies from colonies mated at the station were tested yet.