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Happy #Arachtober 2nd and #FlyDayFriday! I went spider hunting last night and found at least 15 species. And when I got home, I realized this one had caught a fly. I had a very fun Arachtober 1st! Labyrinth Orbweaver (Metepeira labyrinthea) #macrophotography #arachnid #insect

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Arachtober @arachtober.bsky.social · 01/10/2026

For #Arachtober 1st, an image I have been saving for 11 months. This encounter was exciting because Pirate Spiders do not weave orb webs. They commandeer other spiders' webs. She likely ate the resident. This was the first I have seen in a web. Pirate Spider (Mimetidae) #macrophotography #spider

Small white and tan spider in an orb web.

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Arachtober @arachtober.bsky.social · 01/10/2026

Malachite Beauty Sleep I thought I would do one butterfly before all the spider posts start. Found on a night hike last November while I was looking for spiders and mothing. #butterfly #macrophotography #insectphotography #backlit

Backlit green Malachite butterfly sleeping upside down.

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Arachtober @arachtober.bsky.social · 30/09/2026

October 1st marks the start of the 20th year of #Arachtober! Join the celebration throughout October by sharing your photos of #spiders, scorpions, and other #arachnids using #Arachtober. Explore the hashtag and connect with other enthusiasts around the world. Learn more at Arachtober.com

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Nijat Nariman @nnariman.bsky.social · 04/11/2025

How cool is this?!!

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Arachtober @arachtober.bsky.social · 04/11/2025

Helping out with a Night Hike at the Texas Butterfly Festival last night, I found this Flattie on one of the attendees. We had a really good time. We saw lots of spiders and I got two new moths species. Crescent-eyed Spider (Genus Selenops) #spider #macro #macrophotography #naturephotography

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Arachtober @arachtober.bsky.social · 02/11/2025

Happy All Souls' Day! Continuing with spiders, it's only fitting to post a Ghost Spider. This is a ghost spider from the genus Hibana. They earned their spooky name from their pale, semi-translucent bodies and their incredibly fast, phantom-like movements. #spider #macro #macrophotography

Macro photo of a small light colored spider on a leaf.

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Arachtober @arachtober.bsky.social · 01/11/2025

Happy All Saints’ Day! Saint Felix of Nola, fleeing persecution, hiding in a small opening in a wall. A spider spun a thick web across the entrance, hiding him from pursuers. Because of this miracle, Saint Felix is considered the patron saint of spiders. #AllSaintsDay #spider #naturephotography

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Arachtober @arachtober.bsky.social · 01/11/2025

Happy Halloween!! Another fun but exhausting #Arachtober. Tropical Orbweaver (Eriophora ravilla) #Halloween #Spider #stereography #HappyHalloween

Stereo image of an orbweaver spider in front of a glowing skeleton.

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Arachtober @arachtober.bsky.social · 01/11/2025

Buried Alive - #Arachtober 31 This Wetland Giant Wolf Spider (Tigrosa helluo), paralyzed by a Rusty Spider Wasp (Tachypompilus ferrugineus) sting is being dragged to its grave where it will be eaten alive by the wasp's larvae, in the dark. #spider #wasp #insect #macro #macrophotography #Halloween

Macro photo of a wasp dragging a wolf spider.

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Arachtober @arachtober.bsky.social · 01/11/2025

The Blacklight Ball - #Arachtober 31 Two Striped Bark Scorpions dancing! (Centruroides vittatus)

A pair of scorpions holding claws under ultraviolet light.

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Arachtober @arachtober.bsky.social · 01/11/2025

Happy Fly Day Friday! - #Arachtober 31 Crab Spider (Genus Mecaphesa) Western Honey Bee (Apis mellifera) Freeloader Flies (Family Milichiidae) Southern Seaside Goldenrod (Solidago mexicana) #FlyDayFriday #macro #macrophotography #naturephotography #insect #insectphotography

Macro photography of a crab spider eating a bee with flies.

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Jen Cross @jencross.bsky.social · 01/11/2025

Pseudoscorpions are small arachnids that are often overlooked. They prey on clothes moth larvae, carpet beetle larvae, booklice, ants, mites, and small flies. Pseudoscorpions will sometimes hitch rides to new locations on other insects. #Arachtober

A tiny arachnid with a gold body and brick-reddish claws. It is standing on bark that looks like rough sandpaper.

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Jen Cross @jencross.bsky.social · 01/11/2025

Vinegaroons are arachnids that are not spiders. They have a large pair of pedipalps that are used to catching and crushing prey. They get the name Vinegaroon because they can discharge foul smelling liquid to deter predators. #Arachtober (Mastigoproctus sp.) Portal, AZ

A large brown arachnid with a stout pair of pedipalps and eight legs, two of which have evolved into sensory whips. It is standing on my hand with desert mountains in the background.

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Fiona Cross @drspidernz.bsky.social · 27/10/2025

A podcast episode for #Arachtober! "New Zealand's Dr Fiona Cross tells a tale of two spiders: one that outsmarted its researchers and another that's mysteriously drawn to our smelly socks." Some legendary spiders, as well as my story of what inspired me to work with them 🕷 pod.link/aHR0cHM6Ly9m...

pod.link

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Arachtober @arachtober.bsky.social · 31/10/2025

Take it all off! - #Arachtober 31 Molting Western Spotted Orbweaver (Neoscona oaxacensis) #spider #macro #macrophotography #naturephotography

Macro photo of a spider hanging upside down shedding its old exoskeleton.

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Arachtober @arachtober.bsky.social · 31/10/2025

I noticed a quickly shutting tiny door. I pried it open to see this set of legs. Only good shot I got. Possibly a Southwestern Trapdoor Spider (Eucteniza relata). First trapdoor spider I have found. Found in South Texas. #Arachtober #spider #macro #macrophotography #naturephotography

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Arachtober @arachtober.bsky.social · 28/10/2025

#Arachtober 28 Leptoctenus byrrhus. A pretty Lycosoidea spider in the Wandering Spider family (Ctenidae) that I don't see very often. #spider #stereophotography #macrophotography #naturephotography

Stereo macro photography of a Wandering Spider.

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Arachtober @arachtober.bsky.social · 28/10/2025

Hackled Orbweaver (Philoponella semiplumosa) - #Arachtober Spiders in the family Uloboridae do not have venom. #spider #macro #naturephotography #macrophotography #stereophotography

A small spider in a circular web decoration.

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Jen Cross @jencross.bsky.social · 28/10/2025

Read more about these amazing flying spiders in this article. There is also linked video. #Aarchtober news.berkeley.edu/2015/08/18/b...

news.berkeley.edu

Biologists discover skydiving spiders in South American forests - Berkeley News

One type of neotropical spider is able to maneuver as it falls

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Jen Cross @jencross.bsky.social · 28/10/2025

How about some spiky spiders tonight? This one is Micrathena acuta, a spiny orbweaver found in the Ecuadorian Amazon rainforest. It is believed that the spines serve as a defense from birds and even predatory wasps. Cuyabeno Reserve, 2024

A spider with an orangish-gold cephalothorax and a pale colored abdomen with two large spines sticks out in opposite directions from the abdomen. The spider is sitting on a leaf.

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Arachtober @arachtober.bsky.social · 23/10/2025

Green Lynx Spider (Peucetia viridans) with a moth. I am trying (not very successfully) to not post the same species too often, but I love the depth and detail in this shot so I had to share it. #Arachtober #spider #arachnid #naturephotography #macro #macrophotography #stereography #stereopair

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Thomas Shahan @tshahan.bsky.social · 23/10/2025

🍊Video's up! Here's 15 minutes of Paraphidippus aurantius footage, thoughts, and questions: www.youtube.com/watch?v=WRByaUcKSgU featuring courtship behavior, silk production, possible mate-guarding, cannibalism and more! #arachtober

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Arachtober @arachtober.bsky.social · 22/10/2025

Baby Silver Argiopes (Argiope argentata) - #Arachtober 21 I wish I had better depth on these, but with the cha cha method of shooting stereo, its near impossible because a few are always wiggling between frames. #spider #macro #macrophotography #naturephotography

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Jen Cross @jencross.bsky.social · 20/10/2025

Here's a fabulous arachnid for the feed tonight, a Giant Velvet Mite. Their bright colors appear to be aposematic, warning potential predators of their unpleasant taste and smell. (Dinothrombium sp.) Portal, AZ 2025 #Arachtober

A furry red and white mite on a white background.

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Jen Cross @jencross.bsky.social · 20/10/2025

This lovely friend is a Burrowing Wolf Spider, introduced to me by @apsciencebylyn.bsky.social in northern Florida. (Geolycosa sp.) #Arachtober

An all gray spider popping out of a burrow in sandy soil.

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Heidi Eaton @heidi-eaton.bsky.social · 20/10/2025

This lovely White-banded Crab Spider (Misumenoides formosipes) was spotted on a night walk in Shannon County, Missouri. #arachtober #arachtober2025 #spider 🕷️

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Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 20/10/2025

Mr Latrodectus (aka, the black widow) being a pretty leggy lump out in the open as they tend to do 🖤 #Arachtober

Leggy black spider with brown bands on his legs, and red spots along the top of his abdomen; chilling on a fuzzy green stalk in a sparse web

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Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 20/10/2025

Ms False Widow, with a striking red coloring which absolutely does not blend into the sand, doing some web maintenance in the open ♥️ #Arachtober

Stubby little bright red theridiid spider with 4 white patches on her back, moving daintily in the sand

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Arachtober @arachtober.bsky.social · 20/10/2025

Night Hike last night. My most exciting shot. Park ranger found this Flattie spider eating a damselfly on the side of the building. Flattie spiders are a common name for spiders in the Selenopidae family. Genus, Selenops, Crescent-eyed Spiders. #spider #macrophotography #macro #naturephotography

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Arachtober @arachtober.bsky.social · 20/10/2025

Eustala - #Arachtober 18 Another spider I can't get IDed past genus. Related to the Humpback Orbweaver. #spider #spidersofinstagram #macrophotography #naturephotography

Macro photo of a greenish orb weaver spider in her web

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Arachtober @arachtober.bsky.social · 17/10/2025

#Arachtober 16 - Found this little crab spider on my birthday last year. The 6th I have found. Genus Bucranium. First time I saw one, I thought it was debris and didn't realize what I shot till I downloaded my photos. #spider #naturephotography #stereography

Stereo macro photo of a small brown spider.

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Jen Cross @jencross.bsky.social · 17/10/2025

Xylethrus superbus is a fabulous species of orb weaving spider from the Amazon rainforest. While she looks a bit like a strawberry, eating her is not recommended. #Arachtober Cuyabeno Reserve, Ecuador 2022

A spider with a large shield shaped abdomen that is edged in blue with red splotches across the top. He legs are red and she is standing on a leaf.

A spider with a red cephalothorax, legs, and a large abdomen edged in blue with red blotches. She is standing on a leaf facing the camera.

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Arachtober @arachtober.bsky.social · 15/10/2025

Hogna antelucana - #Arachtober 14 Wolf Spiders females aren't known for eating their mates, but if she is hungry and he is small, it can happen. Found in South Texas. #spider #naturephotography #macrophotography

Stereo macro photo of a Wolf Spider eating another Wolf Spider.

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Arachtober @arachtober.bsky.social · 14/10/2025

#Arachtober 13 Crab Spider 2:1 magnification macro I shot last night. I love the depth and detail of this one. Found in South Texas, USA. #spider #crabspider #macrophotography #naturephotography #stereogram

Stereo macro photo of a yellow crab spider.

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Arachtober @arachtober.bsky.social · 13/10/2025

#Arachtober 12 - Small Grass Lynx #Spider with huge egg sac. Lynx spiders guard their eggs but I wonder why it was at the end of a leaf. Lynxes don't carry their egg sac, but some will move them if necessary. Looks like Oxyopes acleistus, I think. South Texas USA #macrophotography #naturephotography

Crossview Stereo Pair Macro Photo of a small brown spider on a leaf next to her white egg sac.

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Arachtober @arachtober.bsky.social · 12/10/2025

Green Lynx Spider (Peucetia viridans) - #Arachtober 11 After yesterday's slightly flat stereo image, here is a much better one. Composition isn't the best, but it looks great in 3D. #CrossView #Stereogram #naturephotography #macrophotography #spider

Stereo macro photo of a green spider with outstretched legs waiting on a flower.

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Shreyas Kuchibhotla @snake-spider-et-al.bsky.social · 10/10/2025

#arachtober A-Z: Day 9: I is for Indoxysticus - a monotypic crab spider genus with a very distinct abdomen pattern Day 10: J is for Jerzego - an oddly named genus of jumping spiders that seem to mimic ants and hate being photographed @britishspiders.bsky.social

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Milvus @moremilvus.bsky.social · 11/10/2025

Eine Veränderliche Krabbenspinne (Misumena vatia)🥰 Tollerweise entdeckte ich diese Spinne nun im zweiten Jahr in Folge in meinem Lavendel. Drückt mir die Daumen, dass nächstes Jahr auch wieder eine da ist. #Arachtober

Auf einer lila Blüte sitzt eine weiße Spinne mit zwei rötlichen Streifen am Hinterleib.

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SnowWolpard @snowwolpard.com · 11/10/2025

I work in an exhibit with live spiders, and I think I have lost count how often people misheard "green lynx spider" as "green link spider"...

Two illustrations of a green lynx spider (green spider with two bigger forward facing eyes and lighter colored legs) stacked on top of one another. The one on top is labeled "Green Lynx Spider (Peucetia viridans)", the actual name of the spider. The one below is wearing a green, pointy hat, carrying a blue shield and sword drawn to look like the Hylian shield and Master sword from the "Legend of Zelda", series and is labeled "Green Link Spider (Peucetia hylia)".

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Arachtober @arachtober.bsky.social · 11/10/2025

#Arachtober 10th is International Jumping Spider Day! Created in 2017 to show the cutest and most adorable spiders as a way for people to embrace instead of fear spiders. Started by photographer Shaham Tamir. Bold Jumping Spider (Phidippus audax) #JumpingSpiderDay #macro #macrophotography #spider

Jumping Spider in its shelter with its moth prey.

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Arachtober @arachtober.bsky.social · 09/10/2025

Hogna antelucana #Arachtober 9 Different species of wolf spider from yesterday. Far more common around here in South Texas, USA. Yet they don't have a common name. I can find bunches of these in my yard most any night. #spider #wolfspider #arachnid #macrophotography #naturephotography #stereogram

Closeup look at a friendly looking wolf spider. Stereo 3D Macro Photography.

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duleyp.bsky.social @duleyp.bsky.social · 08/10/2025

A pseudoscorpion for #arachtober. A Compost Chernes [pselaphochernes scorpioides] from the garden compost heap. #wildlifefrommywindow #invertebrates #ukwildlife #gardenwildlife #macro

A plan view of a eight legged invertebrate that has two long arms reaching out from its head with crab like claws on the end. The body looks like one large reddy brown oval, with the main portion bisected by a lighter line, with each side split into 10 regular sections. The body, arms, and legs, are covered in tiny short hairs, with occaisional longer ones which act as sensory organs.

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