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410 Views 3 Replies Last post: Oct 28, 2013 11:35 PM by MWJB RSS
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Oct 28, 2013 8:02 PM

spider id needed :/ false widow?

hello we found this spider while in the shed today we were hoping somebody maybe able to identify its speceies as worried it maybe a false widow anyone with any help or advise would be greatfully received thank you

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    Oct 28, 2013 9:43 PM (in response to Niomi.m)
    Re: spider id needed :/ false widow?

    Hi Naomi.m,

     

    This is a harmless Zygiella species, most likely Z. x-notata, one of the missing sector orb weavers. Very common in & around houses.

    As you can see the head is light brown around the sides, with a thick, dark central stripe. Steatodas (false widows) tend to have a more uniform colouring accross the whole of the head. Lastly, the spider in the photo has very clear stripes around the legs, male false widows & adult females tend to have more uniform colouring on the legs, though sub-adult steatoda nobilis can have some striping.

    Regards, Mark.

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      Oct 28, 2013 10:21 PM (in response to MWJB)
      Re: spider id needed :/ false widow?

      Hi Mark,

       

      I have been studying this site for a bit tonight and can see you are very active. Please can you also tell me what this is, I think its the same as the above post but would just like your expert opinion. This is 2 or 3 different spiders that are lurking around our house. We have a daughter who is only 18 months old and I am concerned about them. Any help would be greatly appreciated. Many Thanks, Dan.

       

      spider3.jpgspider4.jpgspider5.jpgspider6.jpgspider7.jpg

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        Oct 28, 2013 11:35 PM (in response to DanielWilliamson)
        Re: spider id needed :/ false widow?

        Hi Daniel,

         

        Thanks for the vote of confidence, but there are those here far more deserving of the description of "expert". My expertise is essentially my day-to-day contact with a few species...mostly the Zygiella and Steatoda species that seem to be frequently posted at the minute.

         

        Anyhow, you are correct in your guess that these are also harmless Zygiella species (Z. x-notata most likely). Your first pic (spider 3) shows the brown head with the dark central stripe that differentiates these from Steatoda nobilis, also note the more "feathery" appearance of the abdominal marking & "scalloping" around the sides of the abdomen in the dorsal view?

         

        Here's S. nobilis for comparison...

        [URL=http://s1083.photobucket.com/user/MWJB/media/Steatoda%20Nobilis/IMG_0957_zps284de31a.jpg.html][IMG]http://i1083.photobucket.com/albums/j388/MWJB/Steatoda%20Nobilis/IMG_0957_zps284de31a.jpg[/IMG][/URL]But also please bear in mind the actual risks posed by Steatoda nobilis, should you (or anyone else) discover one, have been blown way out of proportion by the press recently. Their venom is nowhere near deadly, nor dangerous - most people will just experience localised discomfort akin to a bee sting & maybe a general malaise for a couple of days at the most.

         

        Regards, Mark.

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