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The British Arachnological Society (BAS) is the UK’s only body devoted exclusively to the study of arachnids (spiders, harvestmen & pseudoscorpions).

UK
Joined October 2013
Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)Photo by BAS (@BritishSpiders)
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Garden Spider (Araneus diadematus) 🕷️🧡🍃
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I haven’t seen many Nigma walckenaeri this autumn, so it was particularly pleasing to find this one on a rose leaf in the garden today. #spiders @ivysuckle @BritishSpiders
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Myself, Eugene & Chris were looking at a late Turtle Dove in sun by the KGV Reservoir Chingford/Enfield when we got covered in these ant-like spiders Trachyzelotes pedestris? Each post had several on, & there are 1000s of posts. Track is limestone chips @BritishSpiders #spiders
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Replying to @BritishSpiders
@BritishSpiders hi, I’ve just got back from Cape Verde and found this hitchhiker after unpacking. Any idea what it is? AI thinks it might be a fishing or nursery web spider, but we’d love an expert opinion. And what to do with it. Photos attached.
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I stopped for a coffee in Torino, Italy, and noticed this pretty arachnid lady in the corner. She kindly agreed to visit my travel studio. Meet Holocnemus pluchei from family #pholcidae of daddy long-leg spiders. #spidermacro
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Garden wildlife. 3 different Zoropsis spinimanas found yesterday/last night. The 1st was rescued from a neighbour's waste bin. The 2nd was on one of my bins near the front door (outside) and was relocated onto the shed. Finally, the 3rd was inside the shed window. #londonwildlife
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Replying to @BritishSpiders
@BritishSpiders A wasp spider’s nest found on a reserve in Northants today. This spider was being very attentive to it, as if it was guarding it. I think it’s a male. Is this unusual behaviour, as surely he would most likely have been eaten by the female after mating?
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Cross Orbweaver spider at Wildern LNR on 17/10. Superb Mike Rhodes picture @BritishSpiders @GreenHampshire @LGSpace @bigmeadowsearch
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Green Meshweaver♀️(Nigma walckenaeri) 🕷️💚🍃
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Garden wildlife. A lovely Zoropsis spinimana found in my paper/card wheeled bin today. #londonwildlife
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Pachygnatha listeri male spider. Its substantial jaws match the genus name: “pachys”=thick and “gnathos”=jaw. #spidermacro #tetragnathidae
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Garden wildlife. 4 different Anyphaena numidas on the shed last night - there may have been more! #londonwildlife
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Garden wildlife. Last night I found a Segestria florentina on the shed. I have around 25-30 here now, but so far they have all been on the house itself or on a fence close/parallel to the side of the house, 1.5/2m from it. This was about 5/6m away from the nearest fence one.
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Replying to @BritishSpiders
@BritishSpiders One of the wolf spiders? Wasn't sure.
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Garden wildlife. An Anyphaena numida found on the kitchen ceiling this morning. Very sprightly once caught, and even when in the pint glass it was photographed in it was able to scale the sides effortlessly. Released on the shed where there are others. #londonwildlife
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Metellina mengei, the ”spring season weaver of or-webs with a hole in the middle”. This male spider has a delightfully wide interpretation of spring, as I found it in October. #spidermacro #tetragnathidae
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Steatoda grossa ♀️🕷️💚🍃
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Garden wildlife. Last night the Zoropsis spinimana on the outside of the shed was feeding on something - difficult to ID, though it did appear to be one of the Anyphaena numidas that are also out and about on the shed at the moment, and likely passing quite close to each other.
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Garden wildlife. A lovely Zoropsis spinimana on the shed last night. Possibly my favourite spider, and one I've seen fairly regularly here over the last few years. And a second one was inside the shed too - only underside views of that one, but they are quite distinctive!
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BAS retweeted
It was misty this morning up on the heath. The dew made the spiderwebs very conspicuous, including the canopies protecting these WASP SPIDER egg sacs! Wasp spiders on my local heath! I am absolutely thrilled!! #WaspSpider #Spiders #Devon
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