75% of the most threatened bee species have been lost to some of the region's counties.
A report by nature conservation charity Buglife says the large garden bumblebee (Bombus ruderatus) is still found in Gloucestershire and Somerset, but over the past 50 years has disappeared from Dorset and the far South West.
The increased use of pesticides and unpredictable weather have contributed to their decline.
More top news
Breast cancer survivors from the South West share their stories to provide comfort to others - Southmead Hospital has an exhibition.
Firefighters have spent the night tackling a huge fire at a caravan centre in Somerset which caused a series of explosions.
The TUC in the South West have criticised the government for inequalities in minimum pay and say young workers are being left behind.