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Badumna longinqua for today's A-Z. New to the UK and probably spreading through plant trade. Check out your local garden centre, B+Q and especially B+M stores outdoor plant areas. You will likely find the distinctive web before any spider. Visit the BAS on YouTube for more info. #Aractober

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John Boorman @johnboorman.bsky.social · 19h

Garden wildlife. A Harvestman (Odiellus spinosus) rescued from a neighbour's garden waste bin this morning. @britishspiders.bsky.social #londonwildife

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Tylan Berry @tylanberry.bsky.social · 17h

One of the most incredible photos I have ever been sent, courtesy of Chloë James of the Cornwall Wildlife Trust Seagrass Restoration Team. Yep, that's Philodromus margaritatus...under seawater using...an air bubble to breathe and move about. I am utterly speechless!! @britishspiders.bsky.social

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Tylan Berry @tylanberry.bsky.social · 30/09/2026

I was really excited to see some adult Trochosa from the Sphagnum depths of Morden Bog recently - a historic site for the mythical T. spinipalpis. Annoyingly, and unsurprisingly to be honest, all of them were T. terricola, as seems to always be the case from western bogs @britishspiders.bsky.social

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John Boorman @johnboorman.bsky.social · 30/09/2026

House wildlife. I mentioned a couple of days ago that in recent nights I've had a Giant House Spider (Eratigena sp.) running back and forth in the living room. Last night I managed to get a phone photo of him when he stopped briefly by my slipper. @britishspiders.bsky.social

A grey/brown house spider. He's on a rug in my living room, next to my slipper!

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jankitty.bsky.social @jankitty.bsky.social · 30/09/2026

@britishspiders.bsky.social I am hoping that I've managed to save this gorgeous huge fella, which I scooped out of a bird bath...

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Shreyas Kuchibhotla @snake-spider-et-al.bsky.social · 29/09/2026

The day after I posted this - a handsome adult male A. numida from Central Oxford (Pic 1-2), followed by another one in the house (Pic 3). @britishspiders.bsky.social @cofnod.org.uk I assume I can release, or would a voucher be needed?

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Andy Pym @exmoormothman.bsky.social · 30/09/2026

Female Nigma walckenaeri spinning her specialised silk on an Ivy leaf near the doctors this morning. I'd never seen this before. I also found another female with a web & a male walking across a leaf. @britishspiders.bsky.social

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John Boorman @johnboorman.bsky.social · 29/09/2026

Garden wildlife. A Missing-sector orbweb spider (Zygiella x-notata) with her egg sac on the living room window. First photo from outside (where she is), then one taken from inside which shows her upper side and the egg sac better. @britishspiders.bsky.social

A small brownish spider (this is her under side) on a house window. Her egg sac is concealed in the web to the right.

A small brownish spider with a sliver/grey body (this is her upper side) on a house window. Her egg sac, in which individual eggs can be seen, is concealed in the web to the left

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Andrew Douglas @andydouglas1967.bsky.social · 27/09/2026

Four Araneus species from Lakenheath Fen today. They had very recently mowed the paths and there weren't many spiders to be seen, and NO pyramidatus anywhere, which is usually the spider I see the most. Tetragnatha and Metellina also seen.

Underside of an Araneus. This one is certainly diadematus because of the epigyne.

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Clydeside Wild (Dean) @clydesidewild.bsky.social · 27/09/2026

Sunday 27th September There's been a Garden Spider 'Araneus diadematus' on the outside of our kitchen window for well over a week but it's too high up to get a decent pic. So i was more than happy to find one low down on my early walk along the F&C Canal at Cadder. #spiders #arachnida

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John Boorman @johnboorman.bsky.social · 27/09/2026

House wildlife. This Giant House Spider (Eratigena sp.) was in my bedroom last night. He's been in the wars a bit and sadly missing two legs one side, but was otherwise okay. I offered him some water before putting him back, though he didn't want any. @britishspiders.bsky.social #londonwildlife

A grey brown house spider. He's missing two of his legs on his left side.

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Vanna Bartlett @vannabartlett.bsky.social · 27/09/2026

A grand 4 pseud day yesterday with @jeremybartlett.bsky.social on our little 24 mile cycle ride south of Norwich. Cheiridium museorum was found in the 3 churches we visited while Ephippiochthonius tetrachelatus was found at 1 church. 2 other species found at roadside locations. Details in ALT.

Cheiridum museorum: a tiny reddish-brown pseudoscorpion with a roundish, flattened body and fairly slender claws. It is on a pale piece of wood.

Ephippiochthonius tetrachelatus: a brownish coloured pseudoscorpion with long slender claws that are pale reddish colour. It is sitting facing left on a piece of wood covered in bits of cobweb.

Chthonius ischnocheles: a brownish pseudoscorpion with a dark head, large chelicerae and long, slender pale reddish claws. It is sitting head down on a piece of pale grey concrete. Two of these were found under bits of concrete rubble found at the edge of a roadside woodland.

Chernes cimicoides: a dark, reddish-brown pseudoscorpion with large robust claws on a piece of wood. It has a matt/granular appearance. Its body and pedipalps are covered in short, blunt hairs (called setae). This one was found under the loose bark of a large bough that had fallen from a mature roadside Oak tree.

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Martyn Roper @martynroper.bsky.social · 26/09/2026

An astonishing count of 43 Nigma walckenaeri this afternoon from this ivy growing along this wall in Swindon Wiltshire. It stretched for about 100 metres long and we counted only what we could see up to head height. Lots of empty webs too. @britishspiders.bsky.social #spiders #Irecord

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Cofnod Local Environmental Records Centre @cofnod.org.uk · 25/09/2026

Cofnod #RecordOfTheWeek is this Odiellus spinosus Harvestman by SueH. Easily recognised by its chunky body, short legs and distinct trident on the front margin of its head! Very much a lowland species. @britishspiders.bsky.social @megabunus.bsky.social

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John Boorman @johnboorman.bsky.social · 24/09/2026

Garden/house wildlife. I found two different Pseudeuophrys lanigeras on the bedroom window sill this morning! First two photos are of one of them, 3rd/4th photos are of the other one. @britishspiders.bsky.social #londonwildlife

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Vanna Bartlett @vannabartlett.bsky.social · 24/09/2026

Just found this dinky little spider in the garden which looks like it is a Zilla diodia. Have had one in the garden once before but really nice to see another one. #spiders #arachnids

A small spider with a pale brown cephalothorax and light and dark banded legs sitting scrunched up at the centre of its web. The spider's abdomen has pale whitish hairs at the sides and front with a dark bar just behind and then a dark centre.

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Tom Hibbert @wildlifetom.bsky.social · 23/09/2026

I saw this incredible spider down in Essex. The ant mimic, Synageles venator. It kept bouncing its abdomen like a Pied Wagtail!

An ant mimic spider walking across a metal rail. It’s a slender brown spider that resembles an ant

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Stevie P @stevieparsons.bsky.social · 23/09/2026

European Garden Spider web, at a gorgeous Stonehenge this morning, just after dawn. 23/9/26 #equinox #spider #stonehenge

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Bernoid @bernoid.bsky.social · 23/09/2026

Empty pirate spider egg sac on a tree in the woods. Lovely.

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Tegwyn @arachnoteg.bsky.social · 23/09/2026

Some spiders from the last few days. Anypheana numida, Liocranum rupicola the Pied Stone spider and Parasteatoda spiderlings, P.tepidariorum? Also possible new site for what is likely Helpis. For size it has a small fruit fly. @britishspiders.bsky.social @tylanberry.bsky.social @sewbrec.org.uk

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Travis McEnery @travismcenery.bsky.social · 22/09/2026

The Royal Canadian Mint is actually producing a $20 coin honouring the spider. It can be yours for only $240. Still pretty cool that they did it, though. www.mint.ca/en/shop/coin...

mint.ca

Nature’s Delight: The Spider – 1 oz. Fine Silver Coin | The Royal Canadian Mint

A web of wonder: Nature’s geometry, glistening in the sunlight.

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marcusbugs.bsky.social @marcusbugs.bsky.social · 22/09/2026

September is the season of fat Garden Spiders

Fat Garden Spider in the middle of it's web

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British Arachnological Society @britishspiders.bsky.social · 22/09/2026

It's a good time of year to be looking out for the distinctively-shaped Trashline Spider Cyclosa conica. It often embellishes its closely-woven orb web with a line (stabilimentum) of food remains or other debris ('trash'). Widespread, usually in shaded shrubs and trees, across Britain.

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ecoleg sazer @ecologycymru.bsky.social · 22/09/2026

Poor phone photo through window of tiny spider with ghost eyes pattern on abdomen. Gower, SW Wales is it possible to ID it? (It’s gone now so I can’t measure it). @britishspiders.bsky.social

Small upside down spider. Relatively long thin brownish kegs, black, shiny round abdomen with white pattern.

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Tylan Berry @tylanberry.bsky.social · 21/09/2026

We really need to reinvigorate the word "stonking", because I can't think of any other way to say that this is an absolutely stonking beast! Araneus diadematus draped in an intense brick red. You'd be excused for mistaking it for A. alsine, as I did for a second! @britishspiders.bsky.social

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British Arachnological Society @britishspiders.bsky.social · 21/09/2026

Since the first record in London in 2017, the non-native Buzzing spider species Anyphaema numida has been on the move - this south Gloucestershire record is another substantial 'jump'!

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Vanna Bartlett @vannabartlett.bsky.social · 21/09/2026

And here's a grown-up, adult Chernes cimicoides or Common Tree Chernes as they are known.

A pseudoscorpion sitting facing right on a piece of brown tree bark. The pseudoscorpion is reddish-brown in colour with a pale line down the centre of its abdomen which is divided into segments separated by thin, pale lines. It has a pair of pedipalps (arm-like limbs) folded back to either side of its body that end in powerful stubby claws.

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Vanna Bartlett @vannabartlett.bsky.social · 21/09/2026

A nice discovery under flaking bark of a diseased tree, the tiny nymph of a Chernes cimicoides pseudoscorpion in its silk moulting chamber. The claws of the shed skin can be seen above the pale nymph. The bark was carefully replaced. #arachnids #pseudoscorpions

Brown tree trunk with scattered black bits on it and in the centre an open oval of silk with a tiny little pale greyish pseudoscorpion tucked inside.

Close-up of the silken chamber where the pseudoscorpion sheds its skin. The pseudoscorpion is pale greyish with robust 'arms' that end in stout claws. The claws of the shed skin are visible at the top of the chamber and are a dark reddish-brown colour.

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Vanna Bartlett @vannabartlett.bsky.social · 21/09/2026

A couple of nice Jumping Spiders from West Norfolk - Salticus cingulatus and Marpissa muscosa. Found with @jeremybartlett.bsky.social #arachnids #spiders

A white spider with black markings head down on a grey wooden fence. Below the spider and slightly left is the shiny head of a nail hammered deep into the wood with a horizontal split spreading either side of it.

A brown and white flecked spider on a brown wooden fence post. It's head is rather squarish and the body is a long oval. The legs are relatively short. The spider's front two eyes are very large and round.

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DB @arnoldtortoise.bsky.social · 20/09/2026

One of two beautiful Dimple-clawed Chthonids in the garden this afternoon. Any day with a Pseudoscorpion is a good day. #Pseudoscorpions

A tiny Pseudoscorpion on a piece of wood. Its pincer-like claws are held out in front as it heads to the left.

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Esmond Brown @chalkspring.bsky.social · 20/09/2026

@britishspiders.bsky.social @tylanberry.bsky.social @graemelyons.bsky.social Feels like the start of Autumn - Linyphiidae season. A nice Small-horned Walckenaer (Walckenaeria corniculans) from the weekend, to start things off

Image shows the head detail of a small yellow-brown Money Spider, in close-up. The spider has a small horn at the tip of its cephalothorax that has a tuft of hairs protruding

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Annie Irving @sconzani.bsky.social · 20/09/2026

The Zebra Spider (Salticus scenicus) may look cute but it's an effective predator, and even smaller spiders make for a tasty lunch. #arachnid @britishspiders.bsky.social

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British Arachnological Society @britishspiders.bsky.social · 19/09/2026

This is a good time to search for Four-spotted Orbweavers, Araneus quadratus, now they're adult and before they disappear after producing their egg sacs. All the females pictured here were found within the past three days. Heaths and grassy meadows are good places to look for them.

Female A quadratus. Cavenham Heath, Suffolk, 16/9/26

Female A quadratus. Cavenham Heath, Suffolk, 18/9/26

Female A quadratus. Nowton Park, Bury St Edmunds, Suffolk, 19/6/26

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Rob Edmunds @vc28nature.bsky.social · 16/09/2026

Several Nursery Web spiders (Pisaura mirabilis) sheltering on Hop a couple of days ago @britishspiders.bsky.social

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Rory @norwichgiant.bsky.social · 16/09/2026

Araneus diadematus having a spot of stripy breakfast this morning. She eatin' good. @britishspiders.bsky.social #spiders #invertebrates

Garden spider Araneus diadematus wrapping up a wasp in her web

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Roger_TL45Y @rogerhorton.bsky.social · 12/09/2026

On Lucerne plant going to seed what looked like a round mass of spider web from above when turned over appeared to contain a mass of blueish eggs. Just over 1cm across. Any ideas please? Today at Icklingham in the #Suffolk #Brecks. @britishspiders.bsky.social

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British Arachnological Society @britishspiders.bsky.social · 13/09/2026

Not often that Britain’s media produces a balanced and accurate piece during “spider season” so the BBC should be applauded for this www.bbc.co.uk/news/videos/...

bbc.co.uk

Are the UK's spiders getting bigger?

It's the start of spider season. But what might make spiders seem bigger this year?

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British Arachnological Society @britishspiders.bsky.social · 12/09/2026

The finale of a great day's spidering on our members' w/e on the Dorset heaths, 'lamping' for noturnal species. Great technique though sadly no Alopecosa fabrilis Great Fox Spider. Plenty of other green spider eyes lighting up though!

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John Boorman @johnboorman.bsky.social · 12/09/2026

Garden/house wildlife. I found this tiny (about 1mm overall) sub-adult jumping spider yesterday on the kitchen wall, near the back door. Thanks to Daniel Oakes on the UK Spiders Facebook group for identifying it as Ballus chalybeius - a new one for me/here! @britishspiders.bsky.social

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British Arachnological Society @britishspiders.bsky.social · 12/09/2026

Always a treat, Britain's only mygalomorph, the Purseweb Spider Atypus affinis, complete with its 'dirty socks' on the sandy slopes around Morden Bog.

Purseweb Spider Atypus affinis - photo copyright Barry Chadwick

Purseweb Spider Atypus affinis. Photo cooyright Barry Chadwick

The sand-covered, above-ground portion of a Purseweb Spiders tubular, silken web - AKA the 'dirty sock'!

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British Arachnological Society @britishspiders.bsky.social · 12/09/2026

Turned out to be the pink day of our members' weekend, with fantastic numbers of Heather Crab Spider Thomisus onustus and towering Dorset Heath Erica ciliaris among other epic species in the wonderful Morden Bog.

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British Arachnological Society @britishspiders.bsky.social · 12/09/2026

Quick refueling stop before the next patch of choice habitat...

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British Arachnological Society @britishspiders.bsky.social · 12/09/2026

Oops, spiders briefly eclipsed by a Clifton Nonpareil...

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British Arachnological Society @britishspiders.bsky.social · 12/09/2026

And we're off! The assembled samplers at the start of the first day of our members' w/e in Dorset - appetites whetted by great talks last night..

Ty Berry, BAS president, introducing the spuders of Dorset.

Mike Waite, Great Fox Spider Alopecosa fabrilis guru, raising our hopes of a sighting.

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Arable Emily @arableplants.bsky.social · 28/07/2026

Greeted on the garden path by an old friend and one of my favourite arachnids. Particularly keen to pose for pictures too which they don't normally. Scytodes thoracica-the 'Spitting Spider'

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Malcolm Smith @malcsmith1.bsky.social · 11/09/2026

Can anyone confirm the species of this spider in my vegetable patch today please? @britishspiders.bsky.social

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Lloyd Davies @lloyd9632.bsky.social · 11/09/2026

Two nicely camouflaged spiders from the sand dunes at Studland, Dorset this week. Attulus saltator and Psammitis sabulosa.

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