The White-tailed Bumblebee is one of the more common bees; queens and workers have one yellow band on the upper thorax and one on the abdomen like their Buff-tailed relatives.
The White-tailed queen has a white or off-white tail; the workers have white or off-white tails and are easy to confuse with Buff-tailed workers.
The White-tailed has yellow bands rather than orange and the differentiation on these pages is mainly on that basis, although, like the orange Carder, the sun does bleach the hairs over time.
She is large and could have a buff
tail, but the straw yellow bands rather than orange have led to her classification as a White-tail with an off-white tail.
White-tailed Bumblebee on flower (or is it a bleached Buff-tail?)
White-tailed Bumblebees on flowers
Probably true White-tailed Bees. Several other bumblebees also have white tails, but have a different pattern of markings (Garden, Tree, Heath, Broken-belted and others including cuckoo bees).