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6011 Views 2 Replies Last post: Sep 7, 2010 8:41 AM by bombuslucorum - Museum ID team RSS
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Jul 16, 2010 4:16 PM

Is this a wasp, with very long tail-type thing?

Hello, this creature was in my conservatory on warm day of 23 June 2010 - i live in the midlands. I would say it was about 5 or 6cm including its long tail-bit. Do you know if it is some kind of wasp?
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    Sep 6, 2010 7:04 PM (in response to Yvonne)
    Re: Is this a wasp, with very long tail-type thing?

    Hi Yvonne. I'm so sorry, it appears your post somehow got over-looked..... We do our best not to let things slip through, but sometimes the odd one 'escapes'.

    Your visitor is an ichneumon, a parasitic hymenopteran. This is a female and the long 'tail' is an ovipositor.

    Ichneumons are difficult and there are many of them, but the size of this one should help narrow things down.

    Hopefully this reply will provoke a response from someone more knowledgeable than I,,,!

    Gill 

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    Sep 7, 2010 8:41 AM (in response to Yvonne)
    Re: Is this a wasp, with very long tail-type thing?

    And the name is .....

     

    Gasteruption jaculator and although it is a parasitic wasp it is placed in the family Gasteruptiidae.The wasps are parasitoids of solitary bees, the Gasteruption larvae feeding on both the larvae and the provender (pollen and nectar) of the bee.  They can often be seen nectaring from flowers or flying up and down walls and moribund tree trunks looking for the nest holes of their solitary bee hosts. If you see them in flight, the abdomen is carried at about 45 degrees inclined and the heavy back legs dangle at 45 degrees declined and must act as counterbalance in flight.  It is probably the commonest recorded Gasteruption in the UK, though this is doubtless  because it is the most readily identified.


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