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Google says this #spider is a Spiny-backed Orb-weaver. Its web glistens in the evening light. 🌱 #MyGarden #Arachnid

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He is free!
He spread his butt hairs all over the enclosure walls so I'm not gonna grab that molt right away. 90% sure he's male from the last molt anyway, but I wanna be sure :P
[ #spider #bug #tarantula #arachnid ]

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SNOW SPIDER - This fellow was out walking on melting snow. He found some grass & went down to the ground. From the long diamond shaped marking on his abdomen, I would say this is a Common Lance-backed Crab Spider (Thanatus formicinus). #nature #arachnid #lookoutforthelance
- Mom

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Photo of my pet tarantula named Butterscotch who is a presumed male, brachypelma boehmei. Photo shows him lying on his back, which is how tarantulas molt.

Photo of my pet tarantula named Butterscotch who is a presumed male, brachypelma boehmei. Photo shows him lying on his back, which is how tarantulas molt.

Its been 84 years

[ #spider #tarantula #bug #arachnid ]

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Mirko from My Hero Academia playing guitar with a purple lightning bolt behind her

Mirko from My Hero Academia playing guitar with a purple lightning bolt behind her

Cliffjumper jumping off a cliff with his pistol and rocket launcher firing

Cliffjumper jumping off a cliff with his pistol and rocket launcher firing

An arachnid warrior from Starship Troopers on a large rock in a desert

An arachnid warrior from Starship Troopers on a large rock in a desert

The combiner Devastator from the 80's Transformers cartoon posed in front of a construction site

The combiner Devastator from the 80's Transformers cartoon posed in front of a construction site

Some random pics I felt like taking!

#Revoltech #MyHeroAcademia #Mirko #Takara #Transformers #MissingLink #Autobots #Decepticons #Constructicons #Cliffjumper #Devastator #StarshipTroopers #Arachnid #ToyPhotography #IsThisEnoughTags

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Don't miss out on this awesome deck! Swing by our Etsy store and snag it for yourself! #alilthisandthat #thisandthatanimalsgonewild #thisandthat #trending #GiftIdeas #deckofcards #cards #playingcards #gamenight #familynight #game #cardgame #deck #Scorpio #astrology #scorpion #arachnid

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Like other velvet mites, this species is among the largest mites in the world, being visible to the naked eye and capable of hunting other smaller mites.

Size: 0,5-ish mm of body length
Time period: Holocene (present day)
Conservation status: Least concern

The animal drawn is a mite with a large red main body & 8 short but thin legs

Like other velvet mites, this species is among the largest mites in the world, being visible to the naked eye and capable of hunting other smaller mites. Size: 0,5-ish mm of body length Time period: Holocene (present day) Conservation status: Least concern The animal drawn is a mite with a large red main body & 8 short but thin legs

What time is it? It’s #Cheliceratime!
One of the biggest mites in the world in Cheliceratime today, the bright red Trombidium holosericeum!

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

#mite #arachnid #sciart #bugsky #invert

1/5

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Just the 3rd Brighton record:

Trachyzelotes pedestris

#wildlife #Britishspiders #NaturePhotography #nature #naturephotographer #brighton #arachnids #spider #spiders #invertefest #ukwildlife #bugsky #sussex #naturalscience #wildlifephotography #arachnid

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Male

Male

Female

Female

Male vs female

Male vs female

Red-bellied Jumping Spider 🕷️ 🇬🇷
#NatureWithin #Arachnid

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Colour macro photo of a jumping spider

Colour macro photo of a jumping spider

Colour macro photo of a jumping spider

Colour macro photo of a jumping spider

#Photography
#Nature
#naturephotography
#photooftheday
#picoftheday
#naturelovers
#insects
#insect
#macro
#bugs
#spider
#arachnid
#jumpingspider

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A profile shot of a long-jawed orbweaver (Tetragnatha sp.) hanging upside down from their web

A profile shot of a long-jawed orbweaver (Tetragnatha sp.) hanging upside down from their web

#macromonday
Long-jawed #orbweaver - Tetragnatha sp.
(Shot near Cincinnati 4-3-26) 🕷️🕸️ #photography #macrophotography #wildlifephotography #wildlife #nature #animal #invertebrate #arachnid #spider #bug #ento #spidersky

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Find out why spiders don't get caught in their own webs at beyondosaurus.com/stealthy-spi.... Beyondosaurus.com is free and complete and goes beyond what any thesaurus can do. ( #spider, #arachnid, #zoology, #spiderWeb, #thesaurus, #definition, #writersBlock)

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Walnut Orb-weaver spider on bark

Walnut Orb-weaver spider on bark

Snake-back Spider on a stone

Snake-back Spider on a stone

Two spiders:
Walnut Orb-weaver (Nuctenea umbratica) - found under bark. Make an orb-web every night.

Snake-back Spider (Segestria senoculata) - found under a stone. Makes a tube web and waits at the entrance for unsuspecting prey.
#Nature #Wildlife #Spiders #Spider #Arachnid #NaturePhotography

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Tomodachi Life Countdown - Web Swing!!!

For the next part of the countdown I wanted to do something with Sydney again, so I drew her swinging on some webs! :3
#oc #ocart #ocsky #art #artist #spidergirl #arachnid

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An unshaded digital drawing of a cartoon jumping spider.  As cute as anything with eight legs the size of a car can be...maybe?  It's probably only the second-biggest spider you've seen in your life.

An unshaded digital drawing of a cartoon jumping spider. As cute as anything with eight legs the size of a car can be...maybe? It's probably only the second-biggest spider you've seen in your life.

CW: SPIDER

An exploration of alternate colors for Makko, a bit more like a peacock #spider. Even as cuted up as he is, he's...probably not going to put in panel appearances.

Makko by: @skeletonized.bsky.social

#inflatable #arachnid #furryart #wip

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"Web of Young Love"
Jason the mouse finding himself in a sticky situation with a cute arachnid woman he apparently knows.
CW: Oral Vore, Unwilling Prey, Melting, Reformation | Extra Pages, drinking
www.furaffinity.net/view/64552967/

#vore #fetish #story #arachnid #oralvore #arachnidvore

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This spider & other close species are famous for their outlandish sight capabilities and unusual hunting style, throwing their hunting web like a net on their prey to catch them.

Size: 2-ish cm of body length
Time period: Holocene (present day)
Conservation status: Least concern/Near threatened

The animal drawn is a spider with a slim tubular body, long thin legs and giant eyes, as big as its fangs

This spider & other close species are famous for their outlandish sight capabilities and unusual hunting style, throwing their hunting web like a net on their prey to catch them. Size: 2-ish cm of body length Time period: Holocene (present day) Conservation status: Least concern/Near threatened The animal drawn is a spider with a slim tubular body, long thin legs and giant eyes, as big as its fangs

What time is it? It’s #Cheliceratime & #spidersaturday !
And today's time to talk about net casting spiders with Deinopis spinosa!

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

#spider #arachnid #sciart #bugsky #invert

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Willow getting his measurements for a suit.  The tarantula named Terry Pocallie is behind him, already working on his suit

Willow getting his measurements for a suit. The tarantula named Terry Pocallie is behind him, already working on his suit

#aptoapril 2026 Day 4 - Tailor
When it comes to a good tailor, you can't go wrong with a tarantula like Terry Pocallie to help make your suit. They even make their own thread!
CW: #Spider #Arachnid

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Very small spider, less than 5mm across, on the leather surface of a footstool. Possibly a Missing sector orb web spider – Zygiella x-notata

Very small spider, less than 5mm across, on the leather surface of a footstool. Possibly a Missing sector orb web spider – Zygiella x-notata

Tiny spider. I had the opportunity to

a) save it
b) impress Mrs Tony with my heroism*

*she hates spiders

#MacroPhotography 🔬
#Photography 📷
#Arachnid 🕷️

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#bskyart #surrealism #iconoplasm #AIArt #AIArtist #AIArtwork #AIimages #GenArt #DigitalArt #AIArtGallery #AIGeneratedArt #creativeai #AIArtCommunity #synthart #histrionic #pseudoscorpion #arachnid #angel

Angelic Arachnid

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A hunter of a species of underground arachnids displays a bear skull on a spike. Her chitinous shell is purple with a slight hint of red. In her hand is a scimitar, a traditional weapon of war
Охотница из расы подземных арахнидов выставляет напоказ череп медведя на шесте. Ее хитиновый фиолетовый хитиновый панцирь отливает красным. В ее руке скимитар, традиционное орудие войны

A hunter of a species of underground arachnids displays a bear skull on a spike. Her chitinous shell is purple with a slight hint of red. In her hand is a scimitar, a traditional weapon of war Охотница из расы подземных арахнидов выставляет напоказ череп медведя на шесте. Ее хитиновый фиолетовый хитиновый панцирь отливает красным. В ее руке скимитар, традиционное орудие войны

A member of underground arachnids, a species of vicious hunters and warriors who value honor and display of skill or strength
Представитель подземных арахнидов, свирепых охотников и воинов, ценящих честь, силу и навыки

#Art #Fantasy #OC #2D #Digital #Spider #Arachnid #Insect

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Video

arachnid Minecraft skin!
#minecraft #originsmod #origin #minecraftskin #coolminecraftskin #minecraftorigins #pixelart #art #Spinning #threeD #3d #spinningspider #spider #arachnid #whateverelse

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A camel spider at a 3/4 angle with its mouth open and front set of legs which look like a tailless whip scorpions pedipalps are up in the air. Its second set of legs are the thin whip legs of a tailless whip scorpion.  The third and fourth set of legs are regular camel spider legs. It has a scorpion tail

A camel spider at a 3/4 angle with its mouth open and front set of legs which look like a tailless whip scorpions pedipalps are up in the air. Its second set of legs are the thin whip legs of a tailless whip scorpion. The third and fourth set of legs are regular camel spider legs. It has a scorpion tail

Mutation march day 27 arachnid. This is a camel spider - tailless whip scorpion - actual scorpion hybrid.

#mutationmarch2026 #mutationmarch #arachnid

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#photography #nature #macrophotography #daddylonglegs #insect #arachnid

Autumn, March, - the house is full of daddy long legs again.

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A jumping spider sat on a small stone. The V-shaped lines above its eyes make it look as if it is frowning heavily.

A jumping spider sat on a small stone. The V-shaped lines above its eyes make it look as if it is frowning heavily.

Found this fantastic V-Signed Jumping Spider today. He wasn't happy about the clocks going forward either.

#spider #arachnology #arachnid #macro_photography

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Portrait Commission from telegram 🕷️🌃

#SFW #Commission #Male #Portrait #AnimeArt #Humanoid #Kemonomimi #Spider #Web #Spiderweb #Arachnid

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Macro photo of a pink primrose with a tiny garden spider among the petals

Macro photo of a pink primrose with a tiny garden spider among the petals

A friend #Spider #Arachnid

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Trigonotarbida

Forwarded clypeus hiding the chelicerae

2 median eyes & little pairs  on the sides

Complex dorsal lock between the prosoma & the narrowed 1° opisthosomal segment

Last 10, 11 & 12 segments folded on the underside, the last to in a sort of “postabdomen”

Ventral sac

2 pairs of book lungs

3 claws:
2 large ones & a smaller one

Last segment of the chelicera turned into a fang

Trilobed opisthosoma with Lateral Lobe/Plate & Median Lobe/Plate

Trigonotarbida Forwarded clypeus hiding the chelicerae 2 median eyes & little pairs on the sides Complex dorsal lock between the prosoma & the narrowed 1° opisthosomal segment Last 10, 11 & 12 segments folded on the underside, the last to in a sort of “postabdomen” Ventral sac 2 pairs of book lungs 3 claws: 2 large ones & a smaller one Last segment of the chelicera turned into a fang Trilobed opisthosoma with Lateral Lobe/Plate & Median Lobe/Plate

Araneae (spiders)
Group represented: Araneomorphs

Last segment of the chelicera turned into a venomous fang

Palpal bulbs for reproduction in males

Primitively 8 eyes in 2 rows, but eye pattern highly variable

Fovea

Patella often shorter than Femur & Tibia

No muscles to extend the legs, extension is done by self-regulation of internal hydraulic pressure

2 claws by default, 3 among web-spinning species

Opisthosoma often without external segmentation

2 to 6 spinnerets from which silk is spinned

Book lungs (1 pair in araneomorphs, 2 in tarantulas & mesotheles)
Tracheae (absent in tarantulas & mesotheles)

Epygine (female genital opening)

Narrow pedicel (“wasp waist”)

Sternum

Labium

Endite (extension of the pedipalp’ coxae to process food)

Notes: Spiders are highly diverse, this is an overall generalised body plan. Uraraneids and other stem spiders lineages are based on the same general model but with sometimes a flagellum and doubts about the presence of true spinnerets

Araneae (spiders) Group represented: Araneomorphs Last segment of the chelicera turned into a venomous fang Palpal bulbs for reproduction in males Primitively 8 eyes in 2 rows, but eye pattern highly variable Fovea Patella often shorter than Femur & Tibia No muscles to extend the legs, extension is done by self-regulation of internal hydraulic pressure 2 claws by default, 3 among web-spinning species Opisthosoma often without external segmentation 2 to 6 spinnerets from which silk is spinned Book lungs (1 pair in araneomorphs, 2 in tarantulas & mesotheles) Tracheae (absent in tarantulas & mesotheles) Epygine (female genital opening) Narrow pedicel (“wasp waist”) Sternum Labium Endite (extension of the pedipalp’ coxae to process food) Notes: Spiders are highly diverse, this is an overall generalised body plan. Uraraneids and other stem spiders lineages are based on the same general model but with sometimes a flagellum and doubts about the presence of true spinnerets

Pedipalpi
(Vinegaroons, schizomids & amblypygids/”whip spiders”)

2 median eyes in & little lateral pairs for species with sight 

Prosoma in one block for vinegaroons & amblypygids, subdivided like solifuges & palpigrades for schizomids

Last 3 segments of the opisthosoma are smaller & forming a postabdomen

Telson mondified into a flagellum (lost in amblypigids & reduced in schizomids)

2 pairs of book lungs (only one in schizomids)

Tarsus is always subdivided into tarsomeres

First pair of legs elongated and used as antennae, loss of their walking function

Large raptorial pedipalps

Note: This diagram is a mix of both schizomids, vinegaroons & amblypygids to show the numerous features shared by these 3 orders despite their differences.

Pedipalpi (Vinegaroons, schizomids & amblypygids/”whip spiders”) 2 median eyes in & little lateral pairs for species with sight Prosoma in one block for vinegaroons & amblypygids, subdivided like solifuges & palpigrades for schizomids Last 3 segments of the opisthosoma are smaller & forming a postabdomen Telson mondified into a flagellum (lost in amblypigids & reduced in schizomids) 2 pairs of book lungs (only one in schizomids) Tarsus is always subdivided into tarsomeres First pair of legs elongated and used as antennae, loss of their walking function Large raptorial pedipalps Note: This diagram is a mix of both schizomids, vinegaroons & amblypygids to show the numerous features shared by these 3 orders despite their differences.

And for the end of the thread, the pantetrapulmonates: trigonotarbida, araneae (spiders) and pedipalpi (vinegaroons, amblypygids, schizomids)

Thank you for reading & I’ll see you on the next #Cheliceratime!

#arachnid #spider #trigonotarbid #vinegaroon #amblypygid #schizomid
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Ricinulei
Group represented: Neoricinuleids

Forwarded cucullus hiding the chelicerae

2-segmented small chelicerae

Carapace densely granulated

Males’ 2° femur enlarged

Double trochanter (3° & 4° pairs of walking legs)

Complex dorsal lock between the prosoma & the narrowed 1° opisthosomal segment

Trilobed opisthosoma with Lateral Lobe/Plate & Median Lobe/Plate

Last 3 segments of the opisthosoma form a short postabdomen

Pedipalps ending with a small pincer claw

Males’ 3° legs modified for reproduction

Tracheal openings hidden among the legs

Pedipalp folded under the body & ending with a pincer claw

Ricinulei Group represented: Neoricinuleids Forwarded cucullus hiding the chelicerae 2-segmented small chelicerae Carapace densely granulated Males’ 2° femur enlarged Double trochanter (3° & 4° pairs of walking legs) Complex dorsal lock between the prosoma & the narrowed 1° opisthosomal segment Trilobed opisthosoma with Lateral Lobe/Plate & Median Lobe/Plate Last 3 segments of the opisthosoma form a short postabdomen Pedipalps ending with a small pincer claw Males’ 3° legs modified for reproduction Tracheal openings hidden among the legs Pedipalp folded under the body & ending with a pincer claw

Phalangiotarbida
Genus represented: Mesotarbus

Small leg-like pedipalps

Extremely small chelicerae, exact morphology unsure

6 eyes arranged in 3 pairs on a trifoliate tubercle

First 6 segments of the opisthosoma are  densely packed on the dorsal side

Broad 3-segment end of opisthosoma (often fused)

Dorsal anal opening

Ogive-shaped main body

Crab-like heavy walking legs

1 pair of spiracled linked to unknown respiratory organs

reproductive’s morphology unknown

Note: This group is still poorly known; further research could change several details radically.

Phalangiotarbida Genus represented: Mesotarbus Small leg-like pedipalps Extremely small chelicerae, exact morphology unsure 6 eyes arranged in 3 pairs on a trifoliate tubercle First 6 segments of the opisthosoma are densely packed on the dorsal side Broad 3-segment end of opisthosoma (often fused) Dorsal anal opening Ogive-shaped main body Crab-like heavy walking legs 1 pair of spiracled linked to unknown respiratory organs reproductive’s morphology unknown Note: This group is still poorly known; further research could change several details radically.

Pseudoscorpiones
Group represented: Cheliferoids

Pedipalps turned into pincer claws (with venomous glands in iocheirates species)

Small 2-segmented chelicerae with a small spinneret called “galea” on the moveable digit linked to a silk gland

0 to 4 simple eyes on the forward rims of prosoma

Patella usually is longer than the femur

Exoskeleton can be heavily ornamented with tubercles

Opisthosoma ending by an anal cone, no telson

2 pairs of tracheae

Large genital plate

First opisthosomal segment non-visible on ventral side

Endite (extension of the pedipalp’ coxae to process food)

Pseudoscorpiones Group represented: Cheliferoids Pedipalps turned into pincer claws (with venomous glands in iocheirates species) Small 2-segmented chelicerae with a small spinneret called “galea” on the moveable digit linked to a silk gland 0 to 4 simple eyes on the forward rims of prosoma Patella usually is longer than the femur Exoskeleton can be heavily ornamented with tubercles Opisthosoma ending by an anal cone, no telson 2 pairs of tracheae Large genital plate First opisthosomal segment non-visible on ventral side Endite (extension of the pedipalp’ coxae to process food)

Scorpiones
Group represented: Orthosternians

Pedipalps turned into pincer claws 

2 median eyes in & little lateral pairs 

Legs telescoped backwards

Legs’ coxae well-developed & forming a stomotheca (a pre-oral chamber before the mouth)

Sternum

Genital opening & Pectines (ventral sensory appendages close to the ground) closely grouped

4 pairs of book lungs

Opisthosoma subdivided into a mesosoma of 7 segments & a metasoma (=”tail”) of 5 segments

Telson turned into a venomous sting
Acculeus (sting)
Vesicle (contains the venom)

Note: Scorpions changed a lot since the Silurian, many of the paleozoic species didn’t have stomotheca for example. This diagram is mostly representative of today’s species.

Scorpiones Group represented: Orthosternians Pedipalps turned into pincer claws 2 median eyes in & little lateral pairs Legs telescoped backwards Legs’ coxae well-developed & forming a stomotheca (a pre-oral chamber before the mouth) Sternum Genital opening & Pectines (ventral sensory appendages close to the ground) closely grouped 4 pairs of book lungs Opisthosoma subdivided into a mesosoma of 7 segments & a metasoma (=”tail”) of 5 segments Telson turned into a venomous sting Acculeus (sting) Vesicle (contains the venom) Note: Scorpions changed a lot since the Silurian, many of the paleozoic species didn’t have stomotheca for example. This diagram is mostly representative of today’s species.

Orders of unclear affinities & scorpion-like figures: ricinulei, phalangiotarbida, pseudoscorpiones and scorpiones

#Cheliceratime #arachnid #ricinulei #phalangiotarbida #pseudoscorpion #scorpion
5/6

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Opiliones (Harvestmen)

Large chelicerae useful for identification

Leg-like pedipalps of various morphologies, useful for identification

Odoriferous gland for defense pruposes

2 median eyes sitting on an ocularium

Prosoma & opisthosoma broadly joined, often merged together

Dorsal side often covered by a +/- long scutum (shield)

Legs often elongated, with tarsus split in numerous tarsomeres (up to 100)

Anus often can be way more forward than in other arachnids

Genital opening thrust forward between the legs and also bears the tracheal respiratory system

Legs’ coxae well-developed & forming a stomotheca (a pre-oral chamber before the mouth)

Note: Harvestmen show a wide diversity of morphologies concerning the prosoma-opisthosoma fusion and their ventral side, so the one here doesn’t exist & is a fusion of several types to reflect the broad average of what you can find among these arthropods.

Opiliones (Harvestmen) Large chelicerae useful for identification Leg-like pedipalps of various morphologies, useful for identification Odoriferous gland for defense pruposes 2 median eyes sitting on an ocularium Prosoma & opisthosoma broadly joined, often merged together Dorsal side often covered by a +/- long scutum (shield) Legs often elongated, with tarsus split in numerous tarsomeres (up to 100) Anus often can be way more forward than in other arachnids Genital opening thrust forward between the legs and also bears the tracheal respiratory system Legs’ coxae well-developed & forming a stomotheca (a pre-oral chamber before the mouth) Note: Harvestmen show a wide diversity of morphologies concerning the prosoma-opisthosoma fusion and their ventral side, so the one here doesn’t exist & is a fusion of several types to reflect the broad average of what you can find among these arthropods.

Palpigradi

Large projected forward chelicerae

No eyes, presence of specific sensory organs at the body front (called “frontal organ” & “lateral organ”)

Prosomal carapace subdivided from front to back into: propeltidium, mesopeltidium, metapeltidium

Last pair of legs 8-segmented

Last 3 segments of the opisthosoma smaller & forming a postabdomen

Telson modified into a flagellum of 15-ish segments, can easily break

Ventral sacs (if Eukoeneniidae, absent in Prokoeneniidae). No external respiratory system, the animal is small enough for gas exchanges to occur through the weakly sclerotinized exoskeleton

Genital plate extending backward

Long pedipalps, used for walking, retention of 3 claws at the appendage’s end

The first pair of legs is 12-segmented and mainly used as sensory appendages while walking

Palpigradi Large projected forward chelicerae No eyes, presence of specific sensory organs at the body front (called “frontal organ” & “lateral organ”) Prosomal carapace subdivided from front to back into: propeltidium, mesopeltidium, metapeltidium Last pair of legs 8-segmented Last 3 segments of the opisthosoma smaller & forming a postabdomen Telson modified into a flagellum of 15-ish segments, can easily break Ventral sacs (if Eukoeneniidae, absent in Prokoeneniidae). No external respiratory system, the animal is small enough for gas exchanges to occur through the weakly sclerotinized exoskeleton Genital plate extending backward Long pedipalps, used for walking, retention of 3 claws at the appendage’s end The first pair of legs is 12-segmented and mainly used as sensory appendages while walking

Solifugae

2-segmented super enlarged chelicerae

2 median eyes on a high spot

Prosomal carapace subdivided from front to back into: propeltidium (larger & raised), mesopeltidium, metapeltidium

Patella is usually longer than the femur

Tarsus divided into tarsomeres, usually 3 tarsomeres but sometimes more (like 6 among solpugids)

Double trochanter on the 3° & 4° walking legs

Soft 10-segmented opisthosoma

3 pairs of tracheal openings on the underside of the opisthosoma

malleoli/racquet organs on the coxae & trochanter of the last pair of legs, acting as sensitive organs close to the ground

1 pair of tracheal openings between the 2° & 3° walking legs

First pair of walking legs significantly shorter than pedipalps

Long & strong leg-like pedipalps, covered with highly sensitive setae

Adhesive organ at pedipalps’ tip

Solifugae 2-segmented super enlarged chelicerae 2 median eyes on a high spot Prosomal carapace subdivided from front to back into: propeltidium (larger & raised), mesopeltidium, metapeltidium Patella is usually longer than the femur Tarsus divided into tarsomeres, usually 3 tarsomeres but sometimes more (like 6 among solpugids) Double trochanter on the 3° & 4° walking legs Soft 10-segmented opisthosoma 3 pairs of tracheal openings on the underside of the opisthosoma malleoli/racquet organs on the coxae & trochanter of the last pair of legs, acting as sensitive organs close to the ground 1 pair of tracheal openings between the 2° & 3° walking legs First pair of walking legs significantly shorter than pedipalps Long & strong leg-like pedipalps, covered with highly sensitive setae Adhesive organ at pedipalps’ tip

The mite body plan

Although not forming a single monophyletic group and having a morphological diversity way too vast to be exhaustively synthesised in a single drawing, all chelicerates called “mites”, from flour mites to ticks, share a broad body plan easily recognizable, even tho there are many variations depending on which group you’re looking at.

The prosoma’s part bearing chelicerae & pedipalps is detached from the body and is called “gnathosoma”

Prosoma & opisthosoma fused, forming a new body part called “idiosoma”. Some groups have dorsal shields. The front half bearing the first 2 pairs of legs is called “propodosoma”, and the back half “hysterosoma)

Small eyes can be present, most often on the idiosoma forward sides

Legs’ segment count is HIGHLY variable depending on the considered group

Anal plate

Genito-ventral plate

Breathing through tracheae if present (openings usually directed to the front half of the body)

Legs’ coxae can be fused to the idiosoma in some groups

Caruncle/
Pre-tarsus

Sternal plate

The mite body plan Although not forming a single monophyletic group and having a morphological diversity way too vast to be exhaustively synthesised in a single drawing, all chelicerates called “mites”, from flour mites to ticks, share a broad body plan easily recognizable, even tho there are many variations depending on which group you’re looking at. The prosoma’s part bearing chelicerae & pedipalps is detached from the body and is called “gnathosoma” Prosoma & opisthosoma fused, forming a new body part called “idiosoma”. Some groups have dorsal shields. The front half bearing the first 2 pairs of legs is called “propodosoma”, and the back half “hysterosoma) Small eyes can be present, most often on the idiosoma forward sides Legs’ segment count is HIGHLY variable depending on the considered group Anal plate Genito-ventral plate Breathing through tracheae if present (openings usually directed to the front half of the body) Legs’ coxae can be fused to the idiosoma in some groups Caruncle/ Pre-tarsus Sternal plate

Some apulmonate arachnids: Opiliones (Harvestmen), Palpigradi, Solifugae and the mite body plan

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