Check out the "teeth" lining the prosoma on this male erigone spider. The spider is only about 2mm long, just a little guy with big palps!
Sean McCann
@ibycter.bsky.social
Entomologist, sometime arachnologist, natural history enthusiast. I used study caracaras. I still do, but I used to as well. Avatar by the endlessly talented @blackmudpuppy.bluesky.social Also, photographer!
Owlfly! Owlfly! Owlfly! 🤎 We've finally been getting regular rain recently, and no surprise I'm seeing more of my silly friends.
This beautiful cocoon is built by “Fairy lamp spider” Agroeca brunnea. She weaves an inverted wine glass shaped egg sac from silk and covers in mud to disguise. Inside are two chambers, one for her eggs and the other a nursery. Amazing
Desde Canadá a Panamá hay más de 5000 especies de abejas clasificadas en 173 géneros. Se acaba de publicar la segunda edición de The Bee Genera of North and Central America y el pdf completo se puede descargar de este enlace del Smithsonian 🐝 scholarlypress.si.edu/publications... 🐝
Generational variation in egg size and shape in Elasmostethus nubilus (Hemiptera: Acanthosomatidae) associated with different host plants doi.org/10.4039/tce.... #NewInCanEnt
Generational variation in egg size and shape in Elasmostethus nubilus (Hemiptera: Acanthosomatidae) associated with different host plants | The Canadian Entomologist | Cambridge Core
Generational variation in egg size and shape in Elasmostethus nubilus (Hemiptera: Acanthosomatidae) associated with different host plants - Volume 158
doi.org
This kind of thing (I’m the one on the far left) is the reason I’m still itchy and my body is covered with the bites of various flies and mites, despite wearing long pants and sleeves and liberally DEETing myself
BugShot participants examining some leftover bricks
Found using my tried and true “look around while taking a pee” method of locating cool spiders
Catherine found this big huntsman in the grasses.
Bambiraptor feinbergi. Possibly a valid genus… possibly a juvenile Saurornitholestes. Possibly none of the above. I spent far too long on this one. I hope it was worth it 🫠 If the scientists could avoid reclassifying Bambi before people have seen this, I’d appreciate it. 😉 #SciArt
I love finding old tree wounds, the leaking sap ferments into a yeasty mush that persists for years and is full of weird bugs. Here's a flat clown beetle, Hololepta sp, pulling a fly larva out of the muck. Western New York, last month.
Perfect use for new macro camera: SLEEPY BEES! They do not move and so are much easier for novices (✋) to get in focus 😅 #bugsky
Like so (different individual with retreat closed up!) www.inaturalist.org/observations...
Genus Spilasma
Spilasma from Upper Takutu-Upper Essequibo, GY on July 24, 2026 at 11:07 AM by cataranea
inaturalist.org
a really awesome orb weaver found by Catherine, in the genus Spilasma (contains only three species). The beautifuuly structured retreat can be closed by the spider when it is threatened!
Looking for a K-12 insect, spider, or other arthropod teaching resource? We have > 200 rated lessons, books, and more. lessonhive.org/all-inventor...
This was more complicated than even I thought when I set out to make the video, but I'm glad I did! It was a lot of fun, and the reality of this is really cool. youtu.be/djfoUWZbLn8?...
How Spiders REALLY Eat their Prey (and it isn't by just sucking blood)
YouTube video by Travis McEnery
youtu.be
So, @cataranea.bsky.social and I went to Guyana over the past week (ish) to attend #BugShot, in the Rupununi Savannah, at Karanambu Lodge. You wanna see some pictures of what we saw?
Itty-bitty Dictynidae is itty-bitty! (~4mm tops) Spoiler alert! They are going to be this week's Crawly and I will be posting a link - cause this article is shaping up to be a FUN one! #inverts #becurious
My student found (and photographed!) this Laphria posticata robber fly today. I am so proud!
This one was so much fun to make, and it's such a beautiful species. youtu.be/8tEdfXxaYJI
The Dark Fishing Spider - The Spiders in Your House
YouTube video by Travis McEnery
youtu.be
From 2019, when the news was telling us that staring seagulls out had been proven to stop them eating your chips
🧪🐛🐝🐜🦋Come work with me! @romtoronto.bsky.social is hiring a Curator of Insects & Arachnids!!! #insects royalontariomuseum.applytojob.com/apply/mdMTpA...
Curator of Insects & Arachnids - Royal Ontario Museum - Career Page
Apply to Curator of Insects & Arachnids at Royal Ontario Museum in Toronto, ON, Canada.
royalontariomuseum.applytojob.com
Rocky meets a large Carpathian Shepherd who helpfully stuck his head through a hole in a concrete wall
Melanophoxus griffinii, a small conehead katydid from the Amazon region, trying to climb on my lens. This is one of the many challenges in shooting wide angle macro: you have to get very close, and for some animals this is an opportunity for them to go and explore your camera and flash system 😅
Researchers call on public to report Vancouver Island sightings of rubber boas
Researchers call on public to report Vancouver Island sightings of rubber boas
There have been unverified sightings of the snake in the Nanoose and Parksville area, but no photo evidence of its presence, researchers say.
dlvr.it
Too chilly for much native bee activity around lunchtime yesterday, but this male Longhorn bee was still on duty, diligently watching his turf. Side note - yes, he clearly has been doing a lot of pollinating! [Alameda, CA 7-7-26] #bees #nativebees
Baby red widows (Latrodectus bishopi)! Central Florida endemic species. ❤️
ctSpyderFields: A Python package for visual field reconstruction in spiders https://www.biorxiv.org/content/10.64898/2026.05.28.728173v1