I'm just paraphrasing part of Mark Winston's "The Biology of the Honey Bee", in which he says (of how honey bee races are identified):
"Scientists tend to use morphometric measurements of such characteristics as wing veins, mouthpart and antenna length, and the size of certain body parts"
James
If you read caracterization of different races, they are described on different way. The most important features are, how good they are in honey production and how easy they are to nurse, disease resistancy and so on.
I have so much experience about different races, that wing morfometry is not important to beekeepers. You can measure wing veins, but it has no meaning in beekeeping practice, why you keep different races.
If you read today about races in different countries, researchers tell, that DNA shows for example in Russia, that black bee has 30% genes from other races.
In Ukraine second biggest country in Europe, they have many kind of crossings. In north parts of country basic bee is black bee, then to south it comes Carniolan, and in south Carpatian bees.
If you read about bee DNA studies on Vladivostock region in east Siberia, the race tells about migrative beekeeping. Mite resistant Russian bee of USA is from the Region of Vladivostok. It was told that Russian bee has a genome of Caucasian bees, but the new research tells that tegion has many kind of genepools, and they all are crossings.
You may read about venation of Romanian bees, how it has changed in last 40 years.
But venation studies tells about nothing about evolution of honeybee compared to DNA studies.
You may compare to humans Rhesus factor, how it resolve the mystery, who is the father of this baby. Nowadays it is done with DNA. In old days in Finland the father was such, which can keep the baby alive.
But the DNA research is very expencive. Every boy can measure veins, and it costs nothing. There are rare bee races in Europe, which DNA relationship has not been determinened yet.