Julien Tchilinguirian
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jtchi.bsky.social
Julien Tchilinguirian
@jtchi.bsky.social
280 followers 280 following 24 posts
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
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Reposted by Julien Tchilinguirian
amypteride.bsky.social
What time is it? It’s #Cheliceratime!
A rare blind european scorpion today with the participation of @jtchi.bsky.social: Belisarius xambeui!

All the basic infos are here but if you want to learn more, there’s more in the thread below!⬇️🧵

#scorpion #pyrenees #arachnid #sciart #bugsky #invert
Only found in the Eastern Pyrénées between France & Spain, this rare species is a fully blind scorpion living in dark environments, especially near or in caves. Size: 3-ish cm of body length without the pincer claws Time period: Holocene (present day) Conservation status: Least concern/Near threatened/Vulnerable? The animal drawn is a pale looking scorpion without any eyes
June 17, 2026 at 4:09 PM
Reposted by Julien Tchilinguirian
isyeb.mnhn.fr
Bilan très productif des activités de Taxonomie de l' @isyeb.mnhn.fr pour l'année 2025. L'axe Taxonomie affiche 236 articles et ouvrages traitant de taxonomie.
365 espèces nouvelles soit une espèce nouvelle décrite par jour de l’année !
Pour en savoir+ suivez le lien
👉 isyeb.mnhn.fr/fr/actualite...
AXE TAXONOMIE 2025
isyeb.mnhn.fr
February 3, 2026 at 9:19 AM
Reposted by Julien Tchilinguirian
inaturalist.bsky.social
Consider your sign to stop and stare at logs a little more often because just LOOK at this glorious velvet mite! (Third photo is where it was spotted.)

📷 jeremyhegge on iNaturalist
📍 Australia
🔗: www.inaturalist.org/observations...
#ObservationOfTheDay
A fuzzy, bright red mite crawls along a log. A fuzzy, bright red mite crawls along a log. There is a fallen log surrounded by leaf litter and tall, slender trees.
January 6, 2026 at 3:01 PM
Reposted by Julien Tchilinguirian
climate.us
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
russellgarwood.co.uk
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
Two balck and white photographs showing the dorsal (back) surface of a fossil in a rock. The fossil is darker than the surrounding rock, and has a body starting with a bit of a point, then a front half, like a spider except a bit suqarer, and a posterior that - unlike a spider - is segmented. It was some legs visible, but much of them is buried in the rock. There is a (4mm, if you're intetested) scale bar on the image. A black and white reconstruction of this animal in pen, showing if from above, its underside, and in an angled face on view.
March 28, 2025 at 2:35 PM
Reposted by Julien Tchilinguirian
carlbergstrom.com
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
britishspiders.bsky.social
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
plantecarnivore.bsky.social
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
vue de 3/4 face, on voit ses très grosses chélicères et ses crochets qui s'actionnent verticalement vue de haut, on voit ses tout petits yeux vue de face
March 12, 2025 at 11:07 PM
Reposted by Julien Tchilinguirian
ajcann.bsky.social
Maso sundevalli.
#Arachnids #Spiders #VC55
Maso sundevalli female Maso sundevalli epigyne
March 10, 2025 at 3:31 PM
Reposted by Julien Tchilinguirian
valmasdel.bsky.social
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
ajcann.bsky.social
Still plenty of Microneta viaria out there in what remains of the leaf litter.

#Arachnids #Spiders #VC55 #UKWildlife #macrophotography #macro #OMSystem
Microneta viaria male OM System OM-5 OM SYSTEM M.Zuiko Digital ED 90mm f3.5 Macro IS PRO Godox V680-O Microneta viaria male palp OM System OM-5 OM SYSTEM M.Zuiko Digital ED 90mm f3.5 Macro IS PRO Godox V680-O
March 3, 2025 at 3:58 PM
Reposted by Julien Tchilinguirian
chizz13.bsky.social
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
britishspiders.bsky.social
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
piotr-naskrecki.bsky.social
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
lbrianpatrick.bsky.social
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
apsciencebylyn.bsky.social
*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. 🤎
Small lumpy brown mite, with black legs, the 1st pair of which are lined with spines like that of a metal rake Closer shot of one of the creature's rake legs The mite, side by side with a tiny pale millipede with bristles at each body segment and a longer bristle tail
February 8, 2025 at 4:05 AM
Reposted by Julien Tchilinguirian
mhedin.bsky.social
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...
a pale, elegant long-legged spider, with whispy silk, under a stone
February 7, 2025 at 8:29 PM
Reposted by Julien Tchilinguirian
wizentrop.bsky.social
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
russellgarwood.co.uk
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
A black and white photograph of a fossil scorpion, the front towards the right. Y ou can see mouthparts (chelicerae and pedipalps with pincers), four walking legs, and then a body and tail. A colour photograph of a fossil scorpion, this time with the top pointing upwards. It also has nice pedipalps and a good body, but the limbs are a bit more scrappy than the other picture. It does have an impressive sting though. A black and white reconstruction of this super cool fossil species by Jason Dunlop. It's beautifull stippled, and shows the scorpion in dorsal view, with the front upward. It looks a fair bit like a modern scorpion. The man is an amazing artist.
January 31, 2025 at 1:45 PM
Reposted by Julien Tchilinguirian
collemyria.bsky.social
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
caeculus.bsky.social
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
russellgarwood.co.uk
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
An image of a fossil arachnid shown in doral (left) and ventral (right) view. The photos are black and white and the animal itself looks a bit like a spider, although it isn't. It has a tear drop chaped body covered with dense spines, and an anterior point. It doesn't have the narrowing between the front and the back of the body that spiders do. A CT scan of the fossil described from the photos - this has a white body and purple limbs, and is rendered on a black background. A coloured reconstruction of this fossil, which is a dark red all over, with yellow spines.
January 17, 2025 at 10:47 AM
Reposted by Julien Tchilinguirian
graemelyons.bsky.social
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
jessmarsh.bsky.social
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
A feast about to happen. A small spider brown / beige spider with a tall head region carries an even smaller spider in her very long mouthparts.
November 25, 2024 at 9:05 PM
Reposted by Julien Tchilinguirian
mwtingley.bsky.social
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