British Arachnological Society
@britishspiders.bsky.social
The British Arachnological Society (BAS) is the UK’s only body devoted exclusively to the study of arachnids (spiders, harvestmen & pseudoscorpions): https://britishspiders.org.uk. To record GB spiders, please use https://irecord.org.uk/enter-srs-records.
Pinned
In bookshops from 30th January and available now on pre-order, @rlewington2.bsky.social's authoritative and exquisitely illustrated new @bloomsburybooksuk.bsky.social pocket guide to Britain's commonest and most easily recognizable spiders. Highly recommended! #spiders #arachnology
Reposted by British Arachnological Society
RE-DISCOVERY #1!
Our trip to Okefenokee NWR has already resulted in a re-discovery of a long-lost species. Ceratinopsis bona Chamberlin & Ivie, 1944 was last seen in 1943, 82 years ago. In addition to possessing genitalia that match the descriptions, their black tibia IVs are also diagnostic.
Our trip to Okefenokee NWR has already resulted in a re-discovery of a long-lost species. Ceratinopsis bona Chamberlin & Ivie, 1944 was last seen in 1943, 82 years ago. In addition to possessing genitalia that match the descriptions, their black tibia IVs are also diagnostic.
November 18, 2025 at 5:24 PM
RE-DISCOVERY #1!
Our trip to Okefenokee NWR has already resulted in a re-discovery of a long-lost species. Ceratinopsis bona Chamberlin & Ivie, 1944 was last seen in 1943, 82 years ago. In addition to possessing genitalia that match the descriptions, their black tibia IVs are also diagnostic.
Our trip to Okefenokee NWR has already resulted in a re-discovery of a long-lost species. Ceratinopsis bona Chamberlin & Ivie, 1944 was last seen in 1943, 82 years ago. In addition to possessing genitalia that match the descriptions, their black tibia IVs are also diagnostic.
Reposted by British Arachnological Society
From a circuit of the Bay today: Metellina mengei (judging by its leg hairs), a Zebra spider (Salticus scenicus), 3 webs characteristic of the Missing sector orb web spider (Zygiella x-notata) & no idea about the final large beast, busy wrapping its latest catch. #arachnids #spiders
November 13, 2025 at 7:44 PM
From a circuit of the Bay today: Metellina mengei (judging by its leg hairs), a Zebra spider (Salticus scenicus), 3 webs characteristic of the Missing sector orb web spider (Zygiella x-notata) & no idea about the final large beast, busy wrapping its latest catch. #arachnids #spiders
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Sunday book review: Spiders and Harvestmen of Yorkshire by @ecology-digest.bsky.social
Publisher: Pisces
Review: markavery.info/2025/11/16/s...
@ynuorg.bsky.social @britishspiders.bsky.social @yorkshiredales.org.uk @northyorkmoors.org.uk @yorkswildlife.bsky.social @wildsheffield.bsky.social
Publisher: Pisces
Review: markavery.info/2025/11/16/s...
@ynuorg.bsky.social @britishspiders.bsky.social @yorkshiredales.org.uk @northyorkmoors.org.uk @yorkswildlife.bsky.social @wildsheffield.bsky.social
November 16, 2025 at 1:03 PM
Sunday book review: Spiders and Harvestmen of Yorkshire by @ecology-digest.bsky.social
Publisher: Pisces
Review: markavery.info/2025/11/16/s...
@ynuorg.bsky.social @britishspiders.bsky.social @yorkshiredales.org.uk @northyorkmoors.org.uk @yorkswildlife.bsky.social @wildsheffield.bsky.social
Publisher: Pisces
Review: markavery.info/2025/11/16/s...
@ynuorg.bsky.social @britishspiders.bsky.social @yorkshiredales.org.uk @northyorkmoors.org.uk @yorkswildlife.bsky.social @wildsheffield.bsky.social
Another 'must-watch' video from the awesome @travismcenery.bsky.social, delving into the surprising sophistication of spiders' 'poppy-seed' brains.
I truly enjoyed the collaborative nature of making this video, and you might enjoy that mine is not the only face in it.
This topic is amazing.
youtu.be/_QF6kaOAuYg?...
This topic is amazing.
youtu.be/_QF6kaOAuYg?...
Spider Cognition: How Tiny Brains Do Mighty Things
YouTube video by Travis McEnery
youtu.be
November 16, 2025 at 8:34 PM
Another 'must-watch' video from the awesome @travismcenery.bsky.social, delving into the surprising sophistication of spiders' 'poppy-seed' brains.
Pleased to see @markavery.bsky.social's endorsement of @ecology-digest.bsky.social's atlas of Yorkshire's spiders and harvestmen, which we funded with the Yorkshire Naturalists' Union.
'If spiders are your thing, then this is a book for you, particularly, but not only, if you live in Yorkshire'
'If spiders are your thing, then this is a book for you, particularly, but not only, if you live in Yorkshire'
Sunday book review: Spiders and Harvestmen of Yorkshire by @ecology-digest.bsky.social
Publisher: Pisces
Review: markavery.info/2025/11/16/s...
@ynuorg.bsky.social @britishspiders.bsky.social @yorkshiredales.org.uk @northyorkmoors.org.uk @yorkswildlife.bsky.social @wildsheffield.bsky.social
Publisher: Pisces
Review: markavery.info/2025/11/16/s...
@ynuorg.bsky.social @britishspiders.bsky.social @yorkshiredales.org.uk @northyorkmoors.org.uk @yorkswildlife.bsky.social @wildsheffield.bsky.social
November 16, 2025 at 2:29 PM
Pleased to see @markavery.bsky.social's endorsement of @ecology-digest.bsky.social's atlas of Yorkshire's spiders and harvestmen, which we funded with the Yorkshire Naturalists' Union.
'If spiders are your thing, then this is a book for you, particularly, but not only, if you live in Yorkshire'
'If spiders are your thing, then this is a book for you, particularly, but not only, if you live in Yorkshire'
Reposted by British Arachnological Society
If there were contest for smartest-dressed #spider, this dapper Nigma walckenaeri would surely be contender. Hope his good looks proved lucky: he would've had to approach object of his love carefully in her tunnel-like lair to avoid being killed and eaten. In Bungay, Suffolk, at end of last summer.
November 15, 2025 at 5:24 PM
If there were contest for smartest-dressed #spider, this dapper Nigma walckenaeri would surely be contender. Hope his good looks proved lucky: he would've had to approach object of his love carefully in her tunnel-like lair to avoid being killed and eaten. In Bungay, Suffolk, at end of last summer.
Reposted by British Arachnological Society
November 15, 2025 at 3:30 PM
Reposted by British Arachnological Society
Pumpkin Patch Tarantula!🕷️🎃
One of the most incredible spiders in the world, this Tarantula (Hapalopus sp.) lives in the Ecuadorian Amazon!🌳
When people think of Tarantulas, we mainly think of large, plain coloured spiders, but in the neotropics we enter a world of colour!🧡🖤
One of the most incredible spiders in the world, this Tarantula (Hapalopus sp.) lives in the Ecuadorian Amazon!🌳
When people think of Tarantulas, we mainly think of large, plain coloured spiders, but in the neotropics we enter a world of colour!🧡🖤
November 15, 2025 at 9:22 AM
Pumpkin Patch Tarantula!🕷️🎃
One of the most incredible spiders in the world, this Tarantula (Hapalopus sp.) lives in the Ecuadorian Amazon!🌳
When people think of Tarantulas, we mainly think of large, plain coloured spiders, but in the neotropics we enter a world of colour!🧡🖤
One of the most incredible spiders in the world, this Tarantula (Hapalopus sp.) lives in the Ecuadorian Amazon!🌳
When people think of Tarantulas, we mainly think of large, plain coloured spiders, but in the neotropics we enter a world of colour!🧡🖤
Reposted by British Arachnological Society
November 15, 2025 at 9:23 AM
Reposted by British Arachnological Society
Ooh - just arrived. Looks good. The first of the three books I ordered and paid for half a year ago. Not that I ever go to Yorkshire these days.
November 15, 2025 at 12:12 PM
Ooh - just arrived. Looks good. The first of the three books I ordered and paid for half a year ago. Not that I ever go to Yorkshire these days.
Reposted by British Arachnological Society
Couple of #harvestmen from end of last summer: Dicranopalpus ramosus sens lat and Opilio canestrinii. Found together on garden trug used to collect apples. Probably fell in from same apple tree! Both very common in Britain: they were probably around your house this past summer too. Bungay, Suffolk.
November 14, 2025 at 3:42 PM
Couple of #harvestmen from end of last summer: Dicranopalpus ramosus sens lat and Opilio canestrinii. Found together on garden trug used to collect apples. Probably fell in from same apple tree! Both very common in Britain: they were probably around your house this past summer too. Bungay, Suffolk.
Reposted by British Arachnological Society
This Male Walckenaeria acuminata may be common but its a fantastic looking spider, since getting into Linys this Genus is so fasinating. And its great that the male and female of this species can be Identified with a hand Lens.
@britishspiders.bsky.social
@britishspiders.bsky.social
November 14, 2025 at 3:56 PM
This Male Walckenaeria acuminata may be common but its a fantastic looking spider, since getting into Linys this Genus is so fasinating. And its great that the male and female of this species can be Identified with a hand Lens.
@britishspiders.bsky.social
@britishspiders.bsky.social
Reposted by British Arachnological Society
November 11, 2025 at 4:44 PM
Reposted by British Arachnological Society
A spider that was dropping down in my front porch. Anyone know what variety this is? Seek gave me the ever useful "spider".
#Insects #Macro #Spiders #Arachnids #Nature #Wildlife #Nature #MacroPhotography #PhotographersUnited #BlueskyArtShow #EastCoastKin
#Insects #Macro #Spiders #Arachnids #Nature #Wildlife #Nature #MacroPhotography #PhotographersUnited #BlueskyArtShow #EastCoastKin
November 6, 2025 at 3:54 PM
A spider that was dropping down in my front porch. Anyone know what variety this is? Seek gave me the ever useful "spider".
#Insects #Macro #Spiders #Arachnids #Nature #Wildlife #Nature #MacroPhotography #PhotographersUnited #BlueskyArtShow #EastCoastKin
#Insects #Macro #Spiders #Arachnids #Nature #Wildlife #Nature #MacroPhotography #PhotographersUnited #BlueskyArtShow #EastCoastKin
Reposted by British Arachnological Society
Fed up with autumn leaf backgrounds yet? Let's go green.
Nigma walckenaeri.
#Arachnids #Spiders #VC55 #green #macrophotography #macro #OMSystem
Nigma walckenaeri.
#Arachnids #Spiders #VC55 #green #macrophotography #macro #OMSystem
November 12, 2025 at 3:08 PM
Fed up with autumn leaf backgrounds yet? Let's go green.
Nigma walckenaeri.
#Arachnids #Spiders #VC55 #green #macrophotography #macro #OMSystem
Nigma walckenaeri.
#Arachnids #Spiders #VC55 #green #macrophotography #macro #OMSystem
Reposted by British Arachnological Society
From an ancient beech woodland in West Sussex, its a pig to get to with all the gear, and to date ive never seen much there. But thats has changed samples from the 9th November have produced Centromerus cavernarum!!One i had hoped for there.
@britishspiders.bsky.social
@graemelyons.bsky.social
@britishspiders.bsky.social
@graemelyons.bsky.social
November 12, 2025 at 3:58 PM
From an ancient beech woodland in West Sussex, its a pig to get to with all the gear, and to date ive never seen much there. But thats has changed samples from the 9th November have produced Centromerus cavernarum!!One i had hoped for there.
@britishspiders.bsky.social
@graemelyons.bsky.social
@britishspiders.bsky.social
@graemelyons.bsky.social
Reposted by British Arachnological Society
1/2 #speciesaday no. 670 is Silometopus reussi. A small money spider associated with dung & grass heaps and old hay. Fairly frequent where it occurs but I have never seen it away from farms. I have records in Mar, Apr & Sep. This was from a farm to the east of Brighton in Sep.
November 12, 2025 at 7:00 AM
1/2 #speciesaday no. 670 is Silometopus reussi. A small money spider associated with dung & grass heaps and old hay. Fairly frequent where it occurs but I have never seen it away from farms. I have records in Mar, Apr & Sep. This was from a farm to the east of Brighton in Sep.
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Thanks Darwin Biological for including us in your book of practicals!
Our hands-on session helps students to investigate how many different species of plants and animals might be lurking in their local area.
Check out the whole booklet...
buff.ly/YleVbXf
Our hands-on session helps students to investigate how many different species of plants and animals might be lurking in their local area.
Check out the whole booklet...
buff.ly/YleVbXf
The Practical Biologist - Darwin Biological
A collection of 12 biology practicals created by expert institutions specifically for school use.
www.flipsnack.com
November 11, 2025 at 12:48 PM
Thanks Darwin Biological for including us in your book of practicals!
Our hands-on session helps students to investigate how many different species of plants and animals might be lurking in their local area.
Check out the whole booklet...
buff.ly/YleVbXf
Our hands-on session helps students to investigate how many different species of plants and animals might be lurking in their local area.
Check out the whole booklet...
buff.ly/YleVbXf
Reposted by British Arachnological Society
Reposted by British Arachnological Society
Been looking for a fresh specimen of Leucauge sarawakensis for a long time! Each time we found one, someone walked into its web. Hence, the ex situ shots.
October 30, 2025 at 2:23 PM
Been looking for a fresh specimen of Leucauge sarawakensis for a long time! Each time we found one, someone walked into its web. Hence, the ex situ shots.
Reposted by British Arachnological Society
A nice local story: Rare purseweb spider discovered by visitor at Kinver Edge - www.bbc.co.uk/news/article...
Rare purseweb spider discovered by visitor at Kinver Edge
The purseweb spider has not been spotted in the area before, National Trust bosses say.
www.bbc.co.uk
November 2, 2025 at 8:16 AM
A nice local story: Rare purseweb spider discovered by visitor at Kinver Edge - www.bbc.co.uk/news/article...
Reposted by British Arachnological Society
Reposted by British Arachnological Society
An odd one from yesterdays trip to Dersingham Bog. Took ages for the moss folk to get to the bog proper, but here's a presumed Zygiella sp on what was a smooth-ish tree, with nest. Well, I wasn't expecting it there, anyway. Maybe it's a thing, I don't know. Not many bushes nearby but a lot cleared.
November 10, 2025 at 6:57 PM
An odd one from yesterdays trip to Dersingham Bog. Took ages for the moss folk to get to the bog proper, but here's a presumed Zygiella sp on what was a smooth-ish tree, with nest. Well, I wasn't expecting it there, anyway. Maybe it's a thing, I don't know. Not many bushes nearby but a lot cleared.
Reposted by British Arachnological Society
iRecord and other Indicia sites are available again. Thanks to the BRC/UKCEH technical team for resolving the problem.
An unexpected outage for iRecord and other Indicia systems this weekend means that you won't be able to add records to the websites. It is still possible to add records to the iRecord apps, but you won't be able to upload them until this is fixed 😞
November 10, 2025 at 12:06 PM
iRecord and other Indicia sites are available again. Thanks to the BRC/UKCEH technical team for resolving the problem.