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Back Scratching Bumblebee
This bumblebee is, I think, a B. Pascuorum. It appears to be scratching its back. I have not seen that before. Is that right? Or could it be collecting the pollen? Sorry for small depth of focus.
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I’ve seen that behaviour too Nostaw and assumed they were grooming 
but I suppose they could be scratching or collecting pollen…they do get very messy rolling around in pollen don’t they?
CPBx
There was some discussion about this in an earlier thread about mites.
If you type the word “mites” in the search box at the top of this webpage the various replies will be found for you.
Sparrow - Sue
Thank you Sparrow - Sue
