The B4 ( Bring Back Black Bees) CIC has amassed and collated a lot of data supporting the now well known fact that the UK population of Apis mellifera mellifera was not wiped out during the last century and in fact large pockets remain very much extant in certain areas ( notably Northumberland, highlands and islands of Scotland, Wales and Cornwall and Isle of Man)
Much of this information by its very nature has been collected by University Departments and Government bodies and often as part of research work is not published as being someones Intellectual Property (IP) also information, particularly when extensive DNA sequencing has been undertaken, has been obtained at a considerable financial cost.
If you care to look on the BIBBA web pages, you will find that there are a couple of events relating to native bees this weekend ( Saturday 15th February 2020)
The B4 event in Cornwall will have presentations from some of the leading scientist studying our native bee, you would need to be there to hear the new revelations.
Chons da