Let's kick off #Arachtober with some fall colours!
Uncategorized
32
Posts
1
Posters
2
Views
-
#Arachtober 9: a very cool orbweaver, _Gea heptagon_! Named because of its seven-pointed abdomen. So far I have only found them low among the grass in a particular marshy meadow. The juveniles have similar circular web decorations as young _Argiope_.
#Arachtober 10: happy #InternationalJumpingSpiderDay! Here is one of my favourite species, the peppered jumper _Pelegrina galathea_, seen recently. I find the females' patterns so mesmerizing. This one is brown but they can also be just black and white.
While I've found them in all manner of places, I've found that tansy flower heads are a good place to look for them. They like to make little silk retreats under the dense canopy of flowers.
-
#Arachtober 10: happy #InternationalJumpingSpiderDay! Here is one of my favourite species, the peppered jumper _Pelegrina galathea_, seen recently. I find the females' patterns so mesmerizing. This one is brown but they can also be just black and white.
While I've found them in all manner of places, I've found that tansy flower heads are a good place to look for them. They like to make little silk retreats under the dense canopy of flowers.
#Arachtober 11: a little thin-legged wolf spider (_Pardosa_) on a blade of grass in a marshy meadow. They can be practically as jumpy as jumping spiders and are very hard to get close enough to to photograph.
-
#Arachtober 11: a little thin-legged wolf spider (_Pardosa_) on a blade of grass in a marshy meadow. They can be practically as jumpy as jumping spiders and are very hard to get close enough to to photograph.
#Arachtober 12: a small yellow sac spider (_Cheiracanthium_) perches on a fence post and releases a stream of silk strands that are separated and carried aloft by the breeze and (as we've learned in recent years) atmospheric static electricity. If the silk catches on something, the spider can use it to bridge a long gap. Smaller spiders can be borne aloft entirely and traverse long distances, a behaviour called ballooning.
#ArthroBeauty #SpiderSilk #SpiderBehaviour #spiders #Araneae #Cheiracanthiidae
-
#Arachtober 12: a small yellow sac spider (_Cheiracanthium_) perches on a fence post and releases a stream of silk strands that are separated and carried aloft by the breeze and (as we've learned in recent years) atmospheric static electricity. If the silk catches on something, the spider can use it to bridge a long gap. Smaller spiders can be borne aloft entirely and traverse long distances, a behaviour called ballooning.
#ArthroBeauty #SpiderSilk #SpiderBehaviour #spiders #Araneae #Cheiracanthiidae
It's another #Arachtober #MiteMonday! Here's a whirligig mite (family Anystidae) cleaning its feet. Warning: handheld video! I was able to stabilize it a bit but the camera still moves around.
#ArthroBeauty #DailyMiteVid #Mitestodon #mites #Acari #Acariformes #Prostigmata #Anystidae
-
It's another #Arachtober #MiteMonday! Here's a whirligig mite (family Anystidae) cleaning its feet. Warning: handheld video! I was able to stabilize it a bit but the camera still moves around.
#ArthroBeauty #DailyMiteVid #Mitestodon #mites #Acari #Acariformes #Prostigmata #Anystidae
#Arachtober 14: The gaps between the wooden snow fence and the metal posts are ideal homes for jumping spiders and sac spiders! I found several bold jumping spiders (_Phidippus audax_) this way. High Park, Toronto.
-
#Arachtober 14: The gaps between the wooden snow fence and the metal posts are ideal homes for jumping spiders and sac spiders! I found several bold jumping spiders (_Phidippus audax_) this way. High Park, Toronto.
#Arachtober 15: it's _Zygiella_ courtship season! The males hang around the edges of the females' webs, plucking and strumming rhythmically to communicate. Here's a male with his long "elbowed" pedipalps; a female; and a cobweb spider preying on an unlucky male suitor who got too close.
-
#Arachtober 15: it's _Zygiella_ courtship season! The males hang around the edges of the females' webs, plucking and strumming rhythmically to communicate. Here's a male with his long "elbowed" pedipalps; a female; and a cobweb spider preying on an unlucky male suitor who got too close.
#Arachtober 16: mating opilionids, a very leggy affair. I didn't have my light on me and was just using camera flash, and it was over in a second.
Something I only noticed just now: one of the opilionids' legs is curled around the other's! (The tips of the legs are made up of many tiny segments so they are basically prehensile.) This is really cute to me somehow…
-
#Arachtober 16: mating opilionids, a very leggy affair. I didn't have my light on me and was just using camera flash, and it was over in a second.
Something I only noticed just now: one of the opilionids' legs is curled around the other's! (The tips of the legs are made up of many tiny segments so they are basically prehensile.) This is really cute to me somehow…
#Arachtober 17: find the jumping spider! (Answer in next post.)
-
#Arachtober 17: find the jumping spider! (Answer in next post.)
#Arachtober 17, part 2. It was shy and immediately went back in when I got closer.
-
#Arachtober 17, part 2. It was shy and immediately went back in when I got closer.
#Arachtober 18: an Eastern parson spider (_Herpyllus ecclesiasticus_), a stealthy and fast-moving active hunter, feeding on a male _Zygiella_ missing-sector orbweaver. (This was right behind a female's web.) You can see the distinctive "knees" of the male's pedipalps in focus in the second picture.
#ArthroBeauty #DailySpiderPic #spiders #SpiderBehaviour #Araneae #Gnaphosidae #Araneidae
-
#Arachtober 18: an Eastern parson spider (_Herpyllus ecclesiasticus_), a stealthy and fast-moving active hunter, feeding on a male _Zygiella_ missing-sector orbweaver. (This was right behind a female's web.) You can see the distinctive "knees" of the male's pedipalps in focus in the second picture.
#ArthroBeauty #DailySpiderPic #spiders #SpiderBehaviour #Araneae #Gnaphosidae #Araneidae
#Arachtober 19: for spooky season, here's a couple of ghost spiders (family Anyphaenidae)! The first is an adult, possibly the mother of the tiny one in the second photo. They resemble sac spiders like _Clubiona_ and _Cheiracanthium_ but with distinct patterns of markings, and as you can see they make similar silk hammock retreats, here under the leaves of a _Silphium_ cup plant.
#ArthroBeauty #DailySpiderPic #spiders #GhostSpider #GhostSpiders #Araneae #Anyphaenidae
-
#Arachtober 19: for spooky season, here's a couple of ghost spiders (family Anyphaenidae)! The first is an adult, possibly the mother of the tiny one in the second photo. They resemble sac spiders like _Clubiona_ and _Cheiracanthium_ but with distinct patterns of markings, and as you can see they make similar silk hammock retreats, here under the leaves of a _Silphium_ cup plant.
#ArthroBeauty #DailySpiderPic #spiders #GhostSpider #GhostSpiders #Araneae #Anyphaenidae
#Arachtober 20: a tiny oribatid or beetle mite, likely suborder Mixonomata (https://bugguide.net/node/view/238862), ubiquitous dwellers of soil and leaf litter, armoured decomposers.
#ArthroBeauty #MiteMonday #DailyMitePic #Mitestodon #mites #Acari #Oribatida #Mixonomata
-
#Arachtober 20: a tiny oribatid or beetle mite, likely suborder Mixonomata (https://bugguide.net/node/view/238862), ubiquitous dwellers of soil and leaf litter, armoured decomposers.
#ArthroBeauty #MiteMonday #DailyMitePic #Mitestodon #mites #Acari #Oribatida #Mixonomata
#Arachtober 21: dreams can come true (if your dream is finding a snout mite https://flipping.rocks/@nev/115403746846167689)
#ArthroBeauty #DailyMitePic #Mitestodon #mites #Acari #Acariformes #Prostigmata #Bdellidae #LichenSubscribe
-
#Arachtober 21: dreams can come true (if your dream is finding a snout mite https://flipping.rocks/@nev/115403746846167689)
#ArthroBeauty #DailyMitePic #Mitestodon #mites #Acari #Acariformes #Prostigmata #Bdellidae #LichenSubscribe
#Arachtober 22: a hobo spider, _Eratigena agrestis_ (I believe), found in a big willow tree down by the lake. These European spiders are imports to the Pacific Northwest but there are a few isolated populations elsewhere, like here in Toronto. I always get a kick out of seeing them.
Contrary to popular North American belief, they are not medically significant. They are close relatives of the native, equally harmless, and far more abundant grass spiders (genus _Agelenopsis_) and make the same flat webs with funnel-like retreats.
-
#Arachtober 22: a hobo spider, _Eratigena agrestis_ (I believe), found in a big willow tree down by the lake. These European spiders are imports to the Pacific Northwest but there are a few isolated populations elsewhere, like here in Toronto. I always get a kick out of seeing them.
Contrary to popular North American belief, they are not medically significant. They are close relatives of the native, equally harmless, and far more abundant grass spiders (genus _Agelenopsis_) and make the same flat webs with funnel-like retreats.
#Arachtober 23: witnessed some interesting behaviour between two long-legged velvet mites (family Erythraeidae, likely genus _Balaustium_) on a tree trunk. They were circling each other and drumming their legs, similar to what I've seen courting _Allothrombium_ red velvet mites doing. I am going to email a mite expert and see what they think!
Unfortunately somewhat shaky video here: https://youtu.be/eGYU6fMfm_Q
#ArthroBeauty #DailyMitePic #Mitestodon #arachnids #mites #Acari #Acariformes #Prostigmata #Parasitengona #Erythraeidae
-
#Arachtober 23: witnessed some interesting behaviour between two long-legged velvet mites (family Erythraeidae, likely genus _Balaustium_) on a tree trunk. They were circling each other and drumming their legs, similar to what I've seen courting _Allothrombium_ red velvet mites doing. I am going to email a mite expert and see what they think!
Unfortunately somewhat shaky video here: https://youtu.be/eGYU6fMfm_Q
#ArthroBeauty #DailyMitePic #Mitestodon #arachnids #mites #Acari #Acariformes #Prostigmata #Parasitengona #Erythraeidae
It's still #Arachtober 24 somewhere: a tiny, curious zebra jumping spider (_Salticus scenicus_). It even gave me a little head tilt. WARNING: very high levels of cute
#ArthroBeauty #DailySpiderPic #JumpingSpiders #spiders #Araneae #Salticidae
-
It's still #Arachtober 24 somewhere: a tiny, curious zebra jumping spider (_Salticus scenicus_). It even gave me a little head tilt. WARNING: very high levels of cute
#ArthroBeauty #DailySpiderPic #JumpingSpiders #spiders #Araneae #Salticidae
#Arachtober 25: now for something entirely different, a penthaleid mite (https://bugguide.net/node/view/263374) feeding on a dandelion leaf. Species like the common _P. major_ (which this probably is) have a #DorsalAnus and excrete these globules as they feed, often hanging upside down on the undersides of leaves or vertically on blades of grass.
(If you think a dorsal anus is wild, certain astig females have secondary dorsal genital openings for copulation.)
#ArthroBeauty #DailyMitePic #Mitestodon #arachnids #mites #Acari #Acariformes #Prostigmata #Penthaleidae
-
#Arachtober 25: now for something entirely different, a penthaleid mite (https://bugguide.net/node/view/263374) feeding on a dandelion leaf. Species like the common _P. major_ (which this probably is) have a #DorsalAnus and excrete these globules as they feed, often hanging upside down on the undersides of leaves or vertically on blades of grass.
(If you think a dorsal anus is wild, certain astig females have secondary dorsal genital openings for copulation.)
#ArthroBeauty #DailyMitePic #Mitestodon #arachnids #mites #Acari #Acariformes #Prostigmata #Penthaleidae
#Arachtober 26: sometimes on a whim you look inside a hole in a railing…
#ArthroBeauty #DailySpiderPic #spiders #Araneae #Clubionidae
-
#Arachtober 26: sometimes on a whim you look inside a hole in a railing…
#ArthroBeauty #DailySpiderPic #spiders #Araneae #Clubionidae
#Arachtober 27: late October, we're getting frost warnings, but the orbweavers just keep on trucking. Taken just a few hours ago on a grocery run; the supermarket's large windows attract a lot of midges and are great scaffolds for the ubiquitous _Larinioides_ orbweavers.
-
#Arachtober 27: late October, we're getting frost warnings, but the orbweavers just keep on trucking. Taken just a few hours ago on a grocery run; the supermarket's large windows attract a lot of midges and are great scaffolds for the ubiquitous _Larinioides_ orbweavers.
#Arachtober 28: clover mite (_Bryobia_) in a bright patch of lichen.
#ArthroBeauty #LichenSubscribe #DailyMitePic #Mitestodon #CloverMites #arachnids #mites #Acari #Acariformes #Prostigmata #Tetranychidae #Bryobiinae
Gli ultimi otto messaggi ricevuti dalla Federazione
-
-
-
(Yes, I’m preparing for my talk at Defuse Dublin next week… how could you tell?) ;)
-
Oh, would you look at that? iBM has removed Ginni’s fawning open letter to Donald Trump after his election win.
https://www.ibm.com/blogs/policy/ginni_romettys_letter_to_the_president_elect
This from the company that, when asked about its complicity in The Holocaust, replied that they didn’t have any records from the period as they are tech company, not historians.
-
@aeva drum'em-vases
-
deh ... e se invece della Bic scriveste invece con la stilografica: un po' di stile merdindirindina ... 🤣🤪
pennino morbido, punta grossa e inchiostro blu 🧐😏
-
From France, all that Zohran Mamdani enthusiasm reminds me of the first time Obama has been elected. It was so hopeful to watch this from abroad.
-
@VeroniqueB99 there's a proverb that says "the shoemaker has broken shoes"
Post suggeriti
-
Eresus sandaliatus MariehøneedderkopLadybird Spider'nOne of the, if not the most strikingly gorgeous spiders I have had the good fortune to encounter.
Uncategorized
3
-
Pellenes tripunctatus Treplettet SpringedderkopNo common name in English?'nThis one has a somewhat embarrassing near-death history to it.
Uncategorized
3
-
-
