By A Mystery Man Writer
The tree bumblebee is a recent arrival to the UK, arriving here naturally in 2003. Since then it has spread rapidly and is a valuable pollinator.
Spring bees: Which species are on the wing first? The Wildlife Trust for Lancashire, Manchester and North Merseyside
Tree Bumblebee (Bombus hypnorum) - Woodland Trust
Tree Bumblebee
Bumblebees Scottish pollinators
Bumblebee - Wikipedia
Tree bumblebee: 'Record sightings' for invasive bee - BBC News
Bumble bees: Identification by Ann Chilcott
Tree bumblebee - Bumblebee Conservation Trust
Tree bumblebee - Bombus hypnorum, Media