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Tree Bumblebees and Saxon Wasps, new colonists in the Highlands

Tree bumblebee, Bombus hypnorum Late one afternoon in early July I wandered out of the house for some exercise. As I made my way up the road I casually observed the insects gathering nectar and pollen from the brambles  growing along the roadside.  I noted several butterfly species along with half a dozen species of bumble and cuckoo bees. My attention was drawn to a very distinctive bumblebee with a bright orange thorax and white tipped black abdomen which I recognised as a Tree bumblebee, a new species to the Highlands. Tree bumblebees have recently extended their range across Europe...

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