Cuckoo bumblebees, as their name suggests, take over the nests of ‘true’ bumblebees. The Cuckoo queen enter their host nest, and kill the existing queen. The remaining workers then rear the cuckoo’s young. The cuckoo bumbles, of which there are six species in Ireland, can be difficult enough to distinguish from true bumbles. However one distinguishing feature is the lack of a pollen basket on the back leg of the bee.
The photo below is of a forest cuckoo bumblebee. They appear to be having a good year with sightings in Mayo and Clare in the last couple of weeks
They are probably one of the easier species to identify with their large white tails and their single yellow band.
Note: no pollen basket on bee on left but Garden bumblebee on right (a true bumblebee) the pollen basket is obvious.
So are they ‘a bad thing’?
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No not at all. They say if there are cuckoo bees around it means that the host species is doing well in an area as it’s able to support the cuckoo bumbles too. It just part of the web of life – and while we may not like the idea we should perhaps admire the cuckoo bumbles much as we do the cuckoo bird!
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Lovely. Thank you!
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p.s. I meant the flower – not sure about the cuckoo bumblebee :)..
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See my comment to Rainbow junkie:)
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Amazing how different species have evolved to survive.
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It certainly is.
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Doesn’t seem very nice, but nature isn’t always pretty! 😉
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Just another survival strategy and must work otherwise they’d be gone!
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Brilliant pics and so clear…did they pose? You certainly got the detail. Clever you and thank you. Lovely post xx
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Thank you Miranda:)
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I am a fan of bumblebees. Ours are the large black, bearish brutes. Never knew bees could be cuckoos. My birds and bees talk has been expanded.
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I really like bumbles too, such amazing creatures:-)
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I have to resist wanting to pet them. They remind me of Winnie the Pooh.
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I know what you mean!
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Can’t believe it – never knew there were cuckoo bumblebees. I suppose there must be many more ‘cuckoo’ type species?
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See you learn something new every day:)
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Reblogged this on Wild Pollinator Gardens.
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Again, I learn from you! Thanks! I’ll keep a look out for them!
PS – Are they regarded as parasites?
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I don’t think so.
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