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2648 Views 4 Replies Last post: Oct 27, 2012 2:24 PM by benjobanjo RSS
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Sep 24, 2012 4:25 PM

Is this a false or black widow

Hi can someone identify this spider for me I found it in my garage cupboard and am intrigued as to what species it might be and whether I need to be concerned at all. Thankyou.

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    Sep 24, 2012 6:35 PM (in response to neilsy)
    Re: Is this a false or black widow

    Looks like a false widow, though not sure of species.  They can give a nasty bite apparently, only in self defence though and not really dangerous.  A true black widow would have a red hourglass marking.  I found one last winter, and it was identified as Steatoda grossa; this one looks very similar.  Look up Steatoda for pictures of the different species.

     

    The true Black Widow isn't normally found in the UK

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    Sep 25, 2012 2:28 PM (in response to neilsy)
    Re: Is this a false or black widow

    I'm a little intrigued as well. It's shape is a little like a Steatoda grossa but the abdomen looks a little too pointed and the white spots are distinctly odd. Perhaps Bombus can give us an idea on this one? You're not restoring an imported car in the garage?

    Lewis

     

    weird stetoda.jpg

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    Oct 27, 2012 2:24 PM (in response to neilsy)
    Re: Is this a false or black widow

    Due to the separated spots at the side of the abdomen, I'd say this could also be S. triangulosa, although I'm not sure how dark they can get.

     

    At first glance, it actually reminded me of the mediterranean black widow- Latrodectus tredecimguttatus (see below pics) but I think the spots down the centre of the abdomen are too pointed. Surely it won't be long before these are over here though, you can find them in France so they haven't got far to travel!

     

     

     

    Latrodectus tredecimguttatus 6.JPG

    Latrodectus tredecimguttatus 7.jpg

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