Bombylius major (large bee fly)

The large bee fly is a bee mimic - it resembles a small bumble bee.

The adult flies are striking and have a hairy body with long hairy legs and a characteristically long, slender tongue which they use for nectar retrieval whilst hovering beside a flower head.

Bombylius major larvae parasitize beetle larvae as well as the brood of solitary wasps and bees - another reason for its name.

The female has been seen to flick her eggs mid-air into the ground bees’ and wasps’ nests.

Species detail

  • Bombylius major
    Taxonomy

    Bombylius major was first named by Linnaeus in 1758, but has since been incorrectly identified as many other things.  Discover some of its alternative names.

  • Bombylius major
    Distribution

    Bombylius major can be found in most parts of the world, apart from Australasia. It has one major requirement: its host - bee and beetle larvae. Find out where you can find this fly in the UK.

  • Bombylius major
    Biology

    The large bee fly parasitises the larvae of wasps, beetles and bees. Discover how the adult fly ensures its offspring finds a suitable host, and what happens next.

  • Bombylius major
    Behaviour

    Find out how bee-flies feed and what they do to keep warm.

  • Bombylius major
    References

    Get reference material for Bombylius major.

Images

Bombylius major

Bombylius major.

© Richard Bartz, Creative Commons Attribution-Share Alike 2.5 Generic license
Bombylius major

Bombylius major.

© Richard Bartz, Creative Commons Attribution-Share Alike 2.5 Generic license
Bombylius major

Bombylius major.

© kde-look.org, GNU General Public License
Bombylius major

Bombylius major.

© Richard Bartz, Creative Commons Attribution-Share Alike 2.5 Generic license
Bombylius major

Bombylius major.

© Richard Bartz, Creative Commons Attribution-Share Alike 2.5 Generic license

About the author

Dr Erica McAlister
Dr Erica McAlister

Diptera curator, Department of Entomology.

A word from the author

"This fly not only looks good, but has a fantastic life cycle - not many creatures go through 2 different larval stages, eat their hosts alive and then emerge to become vegetarians! This species was described to the Angela Marmot Centre for UK Biodiversity as a very small flying narwhal!"

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Angela Marmont Centre for UK Biodiversity 
Angela Marmont Centre for UK Biodiversity

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