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2398 Views 3 Replies Last post: Aug 17, 2012 6:03 AM by jaguarondi RSS
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Aug 13, 2012 11:07 PM

Steatoda Grossa Infestation

Hi all,


I live in Edinburgh and keep finding what I believe to be Steatoda Grossa in my flat. There are many of them and they have been appearing since April-ish (but I haven't lived here that long). I have recently been finding lots of spiderlings (which could be another spider) but am beginning to wonder if I should be worried...


Here's a pic of one I found a few months ago but I currently have another one in a pyrex tub, if anyone wants it. The legs are a reddish brown colour and they have four cream spots on their abdomen below a cream crescent. The front pair of legs are longer than the rest.


Is this a Steatoda Grossa?

Should I be worried?

Are they normally found this far north?

How do I get rid of them? (incidentally, the first one I found I chucked out the window onto a neighbouring playgroup yard, so perhaps my guilt has led me here!)


Thanks in advance for your help.



Spider Pic.jpg

  • Currently Being Moderated
    Aug 16, 2012 3:46 AM (in response to Grossanono)
    Re: Steatoda Grossa Infestation

    Oh dear, I usually avoid answering false widow queries but I reckon this is S. grossa. As for known distribution, see this page -

    so, it has been found in the Edinburgh area and even further north

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      • Currently Being Moderated
        Aug 17, 2012 6:03 AM (in response to Grossanono)
        Re: Steatoda Grossa Infestation

        I think the large one is, as you suspect, a house spider, Tegenaria - it's certainly not S. grossa. Dunno about the others. There comes a point with young spiders at which they no longer want each others company and strike off on their own, and yours haven't got there yet.

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