Re: German Black bees in the Southeastern US actually Apis mellifera iberiensis?
The feral black bees in the U.S. most likely were of Dutch origin. They would have been considered A. M. Mellifera.
There are ship records of Iberian bees brought to South America. Some of them wound up in Mexico and eventually in the southwestern U.S.
I have a note somewhere that the first record of bees on a ship manifest to the U.S. was in 1622. I have not tried to verify this though it is supposedly a readily available record.
NW Alabama, 50 years, 20 colonies and growing, sideliner, treatment free since 2005, 14 frame square Dadant broodnest