Babies are cute. Jumping spiders are cute. So there is nothing cuter than a jumping spider baby! Pseudeuophrys erratica, Finland. #salticidae #jumpingspiders #spidersky

Lyssomanes sp. from my archives. Found in the botanical garden of Rio de Janeiro in 2017. I gave the photos a fresh spin in the modern digital darkroom, improving sharpness and colors. Enjoy! #spidermacro #salticidae #jumpingspider

Diplocephalus latifrons, the double-headed predator of the leaf litter. #linyphiidae #spidermacro

Brazilian jumping spider of genus Chapoda. I found this charmer in the botanical garden of Rio de Janeiro in 2017. #salticidae #spidermacro

Neriene emphana, the striped-butt sheet-web weaver. #spidermacro #linyphiidae

Diplostyla concolor, a lovely dwarf spider from Central Finland. I caught this mini-beast by sifting leaf litter. I find the name “concolor” funny since it literally means “all one color”. However, the front part (prosoma) and rear part (opisthosoma) have different colors… #spidersky #linyphiidae

Japanese orchard spider Leucauge blanda. These guys weave a horizontal web and hunt beneath it, hanging upside down. That’s why they are easily confused with sheet-web weavers of family Linyphiidae, although they actually represent family #tetragnathidae #spidersky

Orb-weaver spider Neoscona subpullata from Naha, Okinawa. #spidersky #mondayspider #araneidae

Diaea subdola crab spider from Japan. I know its cousin Diaea dorsata from Finland; they look much alike. #thomisidae #spidermacro

Hasarius adansoni jumping spider from Okinawa, Japan. #salticidae #jumpingspider #spidersky

Japanese lynx spider Oxyopes macilentus. #oxyopidae #spidermacro

Pardosa laevitarsis from Naha, Okinawa, Japan. There were plenty of these guys frolicking in a city park. In Finland, where I live, we have P. lugubris running around every yard and garden. I guess I found the subtropical equivalent of our beloved “lugu”! #lycosidae #spidermacro #spidersky

Thiania sp. jumping spider from Okinawa, Japan. #salticidae #spidermacro

Cyclosa mulmeinensis, the spider inspired by camels.🐫 No, just kidding! Orb-web weavers existed much before camels. So it must be the camels who borrowed from C. mulmeinensis the cool idea of sporting two humps in the back. #spidermacro #araneidae #cyclosa

Quality crab spider from Okinawa, Japan. I found this elegant green eight-legged pickle in a park in Naha. Species is Oxytate hoshizuna. #thomisidae #spidermacro

Pachygnatha listeri female from Central Finland. Literally, “pachygnatha” means thick jaws, and you can see why in the second photo. Named after naturalist Martin Lister (1639–1712), P. listeri likes to live in the low vegetation of damp forest areas. #tetragnathidae #spidersky

Black Double-Headed Dwarf Spider (Diplocephalus picinus) from Finland. These 2mm long minibeasts live among leaf litter and munch springtails for snacks. #linyphiidae #spidersky

This Monday’s arachnid is Piratula hygrophila, a wolf spider that “loves water” by name. Indeed, this species thrives in wet and damp ground level habitats. #lycosidae #spidermacro

Viime vuonna päätin uudistaa yleistajuisia matikkaesityksiäni niin, etteivät ne tuntuisi luennolta tai oppitunnilta. Meiju Paxin kanssa käsikirjoitimme show’n ”Harrastajan matematiikka”. Tervetuloa YouTubeen katsomaan aivan uudenlaista tiedeviestintää! youtu.be/RCcvsHULZCw

Yellow-legged wolf spider Pardosa fulvipes. These nimble buggers prefer Eastern Europe: they have never been found west of Germany and Italy. At my summer cottage in Central Finland P. fulvipes are plentiful. #lycosidae #spidermacro

Bathyphantes nigrinus, tiny spider from leaf litter. “Bathys” means deep in Greek, and “phantes” refers to appearing. In a bit of a mystical way since both “phantom” and “fantasy” arise from that word. So Bathyphantes spiders emerge from the deep. #linyphiidae #spidermacro

Orange-legged spider Gongylidium rufipes is a sheet-web weaver from family Linyphiidae. It lives in bushes and undergrowth. G. rufipes is very common in Finland where I live. #spidermacro #linyphiidae #spidersky

Meet Lepthyphantes leprosus, a dwarf spider with a rare preference of living indoors. My wife found this 3mm long minibeast from our kitchen wall in Central Helsinki. #linyphiidae #spidermacro #spidersky

Young male Theridion sp. found next to Acropolis in Athens, Greece. #theridiidae #spidermacro #spidersky

Uloborus plumipes: spider without venom. Usually spiders kill their prey by injecting venom with fangs. But some species wrap an insect with super tangled silk into a tight package and cover it with digestive fluid. After a while the soup is ready. Athens, Greece. #uloboridae

Pretty little jumper from Athens, Greece. Its home base and hunting ground is National Garden right next to the Syntagma square. Species: Evarcha jucunda. #salticidae #spidermacro

Monday spider time! Frontinellina frutetorum from Athens, Greece.

It’s Monday, so it’s spider! Heliophanus kochii, a stunning jumper I found on a public beach in Piraeus, Greece. #jumpingspider #salticidae #spidermacro #spidersky

Still presenting the seemingly endless bounty from my July trip to Rio de Janeiro 🇧🇷 Spiny orb-web weaver Gasteracantha cancriformis. #spidermacro #araneidae #mondayspider #spidersky

Kirjamessuilijat, tulkaahan kuuntelemaan!

Mondays are for #mondayspider Mesabolivar sp., a gorgeous Pholcid spider from Rio de Janeiro, 🇧🇷 #spidermacro #pholcidae #arachoctober #spidersky

Ready for Monday Spider? Here we go: Orb-web weaver of genus Wagneriana from Rio de Janeiro 🇧🇷

Monday Spider time again! Quality cobweb weaver from Rio de Janeiro 🇧🇷: Thwaitesia affinis. There’s amazing biodiversity in the city! #theridiidae #spidermacro

Micrathena sp. female spider from Rio de Janeiro. What an amazing thorny shape! #araneidae #spidermacro #spidersky

Spiders of family Pholcidae have specific eye arrangement: clusters of three eyes on the sides, and two eyes in the middle. Many species, including Carapoia lutea shown here, have really long slender legs. This has earned them the nickname “daddy long legs spiders”. #pholcidae #spidermacro

Free hugs! But beware of spikes. Female Gelanor zonatus from Brazil. Being a member of family Mimetidae, she hunts other spiders for food. #spidersky #mimetidae #rio

Kiertomatriisi ja digikuvien kääntäminen aiheena uudessa matikkavideossani! Matematiikan ihmeitä: Kiertomatriisi youtu.be/Wzlzepodcf0

Striped female spider (Leucauge volupis) from Rio de Janeiro. Amazingly, she manages to wear the colors of Brazilian flag 🇧🇷 AND a tin foil sweater. #spidermacro #tetragnathidae #spider #spidersky

Spiders have eight legs and two extra limbs called pedipalps, located in front. Usually the pedipalps are short. Not so with Gelanor zonatus! This Brazilian male sports palps long enough to win a boxing match against any species with a regular reach. #mimetidae #spidermacro

Pitkästä aikaa aamutuimaan turisemassa tieteestä @jukkahakkinen.bsky.social ja @samulisiltanen.bsky.social mainiossa seurassa :) areena.yle.fi/1-75988084

Noegus sp. jumper from Rio de Janeiro. What captivating eyes! #satlicidae #spidersky #mondayspider

Araneus unanimus from Rio de Janeiro, Brazil. The form is identical to the garden spider Araneus diadematus that you can find everywhere in Europe. But the color is straight out of the flag of Brazil! 🇧🇷 #spidermacro #araneidae #spidersky

Brazilian dark star: female Gasteracantha cancriformis. #spidermacro #araneidae

Most spiders have 8 eyes. But there are some exceptions, like this slender Miagrammopes sp. sporting 4 eyes! I found it in Rio de Janeiro. #uloboridae

Crab spider (Tmarus sp.) from the botanical garden of Rio de Janeiro. #spidermacro #spidersky

Introducing Walckenaeria atrotibialis, a small ground-dwelling spider with orange and black coloration. The back of head is shaped like a saddle, perfect for riding if you were one millimeter tall. Why “atrotibialis”? Note the black tibia segments in the legs. Atrum is black in Latin. #spidersky

Metellina merianae spider belongs to the orb-web weaving family #Tetragnathidae. It lives in caves or other kinds of hollow spaces and requires just the right humidity. #spidermacro

Salticus cingulatus, a singularly stunning variety of zebra jumping spiders. The genus name “Salticus“ comes from the Latin verb “saltare”, meaning both jumping and dancing. So we could actually call them dancing spiders! 🕺 #salticidae #spidermacro #SpiderSky

Cuteness alert! Baby Pseudeuophrys erratica, as adorable as they ever come. #salticidae #jumpingspider

What a green jewel! Tetragnatha pinicola, literally the “four-jawed pine-dweller“, weaves an orb web with a hole in the middle. As a further distinction from regular, Araneidae-type orb weavers, T. pinicola builds its web not vertically but at an angle. #tetragnathidae #spidermacro