Bombus Hypnorum ?male + queen?

Bombus Hypnorum ?male + queen?

Observation - Bombus Hypnorum ?male + queen?. Description: The racket made by these 2 bees was sufficient to attract my attention from indoors. I initially thought the bombus hypnorum was attacking a bee of another species - three times its size and differently marked, with a narrow yellow stripe across its upper

The racket made by these 2 bees was sufficient to attract my attention from indoors. I initially thought the bombus hypnorum was attacking a bee of another species - three times its size and differently marked, with a narrow yellow stripe across its upper thorax - but as they settled on a plant in a classic mating position I wondered whether this could be the queen of the new colony?
They seemed oblivious to me, and I was able to shoot video clips from about 20cm.(felt uncomfortably voyeuristic!)before they flew off still clamped together.