Julien Tchilinguirian
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jtchi.bsky.social
Julien Tchilinguirian
@jtchi.bsky.social
M.S.c in conservation ecology & research in Arachnology, France. I've always been passionate about the biology and ecology of the arachnids of the world. Particularly fond of Linyphiidae, Scorpions, Uropygi, Amblypygi & others.

https://linktr.ee/jtchi
Reposted by Julien Tchilinguirian
EXCITING NEWS!
The Climate.us page has officially launched.

Here you will be able to read more about us, our plan, updates, see what real people are saying, view our news coverage, and of course find ways to take action.

We look forward to your continued support.
September 4, 2025 at 3:13 PM
Reposted by Julien Tchilinguirian
For #FossilFriday, meet Plesiosiro. This is a ~315 million year old weird arachnid, found near Birmingham in the UK. It's a lovely fossil but even so figuring out where it sits on the arachnid tree of life has been... annoyingly challenging. Nowadays, we are fairly confident that it...

⚒️🧪🦀🦑 #evosky
March 28, 2025 at 2:35 PM
Reposted by Julien Tchilinguirian
1. For the past thirty years I've had the best job in the world.


I've had the opportunity to follow my curiosity; explore the workings of nature and society; mentor students and junior colleagues in the same process; and teach generations of students about it all.
March 19, 2025 at 7:32 PM
Reposted by Julien Tchilinguirian
For the finale of our spider ID resources thread, at the hardcore end of the week's spectrum we have 20 'difficult species' accounts for groups where the species are very similar and difficult to distinguish: download from our website at srs.britishspiders.org.uk/portal.php/p... #spiders #arachnids
March 16, 2025 at 10:42 AM
Reposted by Julien Tchilinguirian
J'ai mis un peu de temps à traiter les photos, mais début février, j'ai croisé par hasard ce mâle de mygale Atypus sp qui se baladait malgré le froid ! On la trouve nativement sur l'hexagone, et celui-ci faisait autour de 10/12mm de corps.
Le reste du temps, elle reste bien planquée dans son terrier
March 12, 2025 at 11:07 PM
Reposted by Julien Tchilinguirian
Maso sundevalli.
#Arachnids #Spiders #VC55
March 10, 2025 at 3:31 PM
Reposted by Julien Tchilinguirian
It’s dispiriting to see the future leaders of climate research at institutions like GFDL fired indiscriminately (...)

Artificial intelligence cannot compensate for a lack of human intelligence
www.science.org/content/arti...
NOAA firings hit the birthplace of weather and climate forecasting
Dismissed researchers were improving severe weather predictions
www.science.org
March 5, 2025 at 2:53 PM
Reposted by Julien Tchilinguirian
Still plenty of Microneta viaria out there in what remains of the leaf litter.

#Arachnids #Spiders #VC55 #UKWildlife #macrophotography #macro #OMSystem
March 3, 2025 at 3:58 PM
Reposted by Julien Tchilinguirian
Here we have a male Walckenaeria acuminata just look at it, a common spider but how fasinating is it!

@britishspiders.bsky.social

#spiders #arachnids #walckenaeria
March 2, 2025 at 12:06 PM
Reposted by Julien Tchilinguirian
Species of interest - Typhochrestus digitatus. This small linyphiid is mature principally through the winter unlike most other outdoor UK spiders, which mature in late spring or autumn. This reduces competition from other species but prey is likely harder to find. Photo by
@tylanberry.bsky.social
.
March 1, 2025 at 9:21 PM
Reposted by Julien Tchilinguirian
Some of the coolest and perhaps most under-appreciated African carnivores are solifuges. The ferocity of these incredible arachnids, a.k.a. camel spiders or sun spiders, easily matches that of the wild dogs and, just like the canines, they can dismember their prey in a matter of seconds.
February 17, 2025 at 3:16 PM
Reposted by Julien Tchilinguirian
Do you have any wolf spiders (Lycosidae) collected in the last couple of years? If so, I am looking for specimens from any species and any location *in the world* to add to a genetic study of the family. Let me know if you think you can help!
February 8, 2025 at 4:10 AM
Reposted by Julien Tchilinguirian
*hooded cultists chanting* Rake-legged mite! Rake-legged mite! Rake-legged mite!

Oh and a tiny bristle millipede, all with sand grains for scale. Finally got to find bugs this week. 🤎
February 8, 2025 at 4:05 AM
Reposted by Julien Tchilinguirian
welcome to the world new spider genus Siskiyu. you've been lurking in the dark, magical woods of far northern California for millenia. Now the humans have finally gotten around to telling your story, at least in part

this research was funded by the NSF

OA here

zookeys.pensoft.net/article/1402...
February 7, 2025 at 8:29 PM
Reposted by Julien Tchilinguirian
Whip spider (Paraphrynus laevifrons) covered with chloropid fly puparia. The parasitoid fly attacks the eggs carried by the female. When done, the maggots climb on the "childless" mom's back and pupate. She protects them during this period thanks to her motherly instincts.
February 6, 2025 at 5:13 PM
Reposted by Julien Tchilinguirian
For #FossilFriday may I present to you an amazing scorpion, Pulmonoscorpius kirktonensis. It may look like the moult of a modern species, but these are actually ~330 million year old fossils, dissolved out of a rock from 🏴󠁧󠁢󠁳󠁣󠁴󠁿 using acid.

⚒️🧪🦀🦑 #evosky
January 31, 2025 at 1:45 PM
Reposted by Julien Tchilinguirian
Conférence de Raphaël Jeanson à Cahors « Dans la tête d’une araignée » le 28 janvier 2025

sco.lt/52oZI8

Carrefour des Sciences et des arts
[Conférence] « Dans la tête d’une araignée » – Carrefour des Sciences et des arts | Variétés entomologiques
LA CONFÉRENCE EN QUELQUES MOTS : Les araignées sont injustement craintes et redoutées. On les imagine solitaires et agressives. Mais qu’en est-il réellement ? Les araignées sont-elles dangereuses pour...
sco.lt
January 26, 2025 at 7:33 PM
Reposted by Julien Tchilinguirian
I was really excited to be able to key out this tiny (395 micron) mesostig mite I found in coast redwood leaf litter all the way to species - not an easy task for most mites. Meet Cosmozercon setosus, slide mounted in Hoyer's medium. 🤩
January 18, 2025 at 6:25 PM
Reposted by Julien Tchilinguirian
Word up. It's #FossilFriday. This week, meet Eophrynus. This is a ~315 million year old member of the trigonotarbids - an extinct group, related to spiders, whip spiders, and whip scorpions. Check out the spines! I love this fossil.

⚒️🧪🦀🦑 #evosky
January 17, 2025 at 10:47 AM
Reposted by Julien Tchilinguirian
1/2 #speciesaday no. 519 is Troxochrus scabriculus. A small, local money spider that I almost always only find on chalky arable fields on the Downs (where it can be quite numerous), using the suction sampler. Although I have had it on amenity grassland in central Brighton too.
January 10, 2025 at 12:12 PM
Reposted by Julien Tchilinguirian
A feast about to happen: the very rare and critically endangered Kangaroo Island Assassin Spider showing off her impressive mouthparts, whilst carrying around her 8-legged prey 🕷️🧪

#invertebrate #conservation #biodiversity #spider #australia
November 25, 2024 at 9:05 PM
Reposted by Julien Tchilinguirian
The insanity of being a fire ecologist in the epicenter of a major fire event, bags packed and ready to evacuate, watching active fire from my window, while taking media requests and explaining to the public, for the 100,000th time how climate change is largely responsible for this
January 8, 2025 at 7:52 PM
Reposted by Julien Tchilinguirian
Just a wicked cool ground spider from northern regions, this is Gnaphosa brumalis, found in Makkovik, NL.
January 8, 2025 at 11:37 PM
Reposted by Julien Tchilinguirian
Now we're into a new year, I'd like to advertise once again this project in which I have put so much ! (english subtitles available)
If you love animals and especially if you're into bugs, you'll like it !
#invertebrate #spider #nature #wildlife #doc #documentary #japan #crab #bat #snake #entomology
My wildlife documentary made in Okinawa is finally online, three years after I first told you about it!
Thanks to your support during the crowdfunding and access to the Jiyuu-Hugo Sarrade grant, I spent two months on location filming animals.
January 6, 2025 at 3:27 PM
Reposted by Julien Tchilinguirian
@forthespiders.bsky.social Mystery Linyphiid!

A friend of mine collected this male near Tulsa, Oklahoma (more pics in comments)

It keys to either Sphecozone or Silometopoides, but neither is a good match
January 1, 2025 at 10:57 PM