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The Bug Identifier

Camel spider

Camel Spider: The Myths, and the Real Animal Behind Them

One photograph from Iraq in 2004 shaped almost everything people believe about this animal. Nearly all of it is wrong, and the real creature is stranger than the story.

A camel spider is not actually a spider

In practice, this is the fact that reorders everything else. Camel spiders sit in their own order, Solifugae, which holds more than 1,000 described species across roughly 147 genera and 16 families. Spiders, meanwhile, belong to a different order, Araneae. Both are arachnids, so they are cousins rather than the same thing.

Meanwhile the name problem runs deeper, because this one animal collects nicknames. Sun spider, wind scorpion, solifuge, sun scorpion and jerrymander all describe the same group. None of them is a spider and none is a scorpion, so every common name it has is misleading in one direction or another.

Camel spider compared with a true spider: the camel spider has one central pair of eyes, huge pincer chelicerae, ten limbs in front and no waist, while the spider has eight eyes, small fangs, a narrow waist and spinnerets
Four differences you can check on a photo. The eye count and the jaws are the quickest, and the missing waist rules out a spider on its own.

Telling a camel spider from a true spider

Check each clue below to narrow down what you saw.

  • One central pair of eyes

    Two large median ocelli sitting together. Most true spiders carry eight eyes arranged in two rows.

  • Enormous pincer jaws

    The chelicerae work like a crab claw and can be nearly as long as the front body section. A spider's fangs are small and point down.

  • Looks like it has ten legs

    It has eight. The front pair are pedipalps, used as feelers and grabbers, and counting them is the usual error.

  • No narrow waist

    The body runs in one broad line with a visibly segmented abdomen. Spiders pinch sharply between the two sections.

  • No web and no silk

    Solifuges have no spinnerets. If the animal made the web you are looking at, it is not a camel spider.

  • Fan-shaped organs under the hind legs

    Called malleoli or racquet organs, these chemical sensors are unique to the order and settle the identification.

The camel spider myths, one by one

In fact, almost every widely repeated claim about this animal is false. BugGuide puts it plainly, describing the camel spider as steeped in superstition and urban legend. Here is each claim against what the record actually shows.

Myth: “They run at 25 miles per hour.”

Truth: About 10 mph is the highest figure in the scientific literature, and the Burke Museum's Rod Crawford notes that carefully measured speeds came in under 1 mph. Fast for an arachnid, slower than you.

Myth: “They grow as big as a human torso.”

Truth: The largest species reach 12 to 15 cm including legs. The famous photo used forced perspective, with two dead specimens held close to the lens so they filled the frame.

Myth: “They scream when they chase you.”

Truth: They have no way to scream. Some species stridulate, which produces a faint rasping, and that is the whole of it.

Myth: “They inject an anesthetic and eat your flesh while you sleep.”

Truth: Solifuges have no venom glands and no anesthetic. No documented case exists, and the story always happened to a friend of a friend.

Myth: “They chase people across the desert.”

Truth: They chase your shadow. Solifugae means those that flee from the sun, so an animal caught in the open runs for the nearest shade, which is the patch you are standing in.

Myth: “They eat camel stomachs.”

Truth: The name comes from this story rather than the story coming from observation. Solifuges eat insects, spiders, scorpions and the occasional small lizard.

Myth: “They are the deadliest spider in the desert.”

Truth: They are not deadly and not spiders. With no venom at all, a camel spider is less medically significant than the common house spider.

The photo that started it

In 2004 an image circulated from Iraq showing what looked like two vast arachnids hanging together, apparently the length of a soldier's leg. It travelled by forwarded email, then by forum, and it is still the mental picture most people carry.

However, the trick was simply forced perspective. Two dead solifuges were held close to the camera lens, so they filled the frame while the person behind them shrank into the background. Move the same animals back to arm's length and they look like what they are, which is a pair of palm-sized arachnids.

Then the timing did the rest. Soldiers deploying to unfamiliar deserts passed the story along, and a good scare story spreads faster than a correction. That is how the rest of the list, the screaming and the 25 mph sprint and the flesh eating, attached itself to a real animal that does none of it.

How big do camel spiders really get?

Large for an arachnid, and nowhere near the legend. So the biggest species measure roughly 12 to 15 cm, or 5 to 6 inches, including the legs. Body length on its own reaches about 7 cm at the extreme, and most species sit closer to 5 cm overall.

Camel spider size against the claim and against familiar arachnids
SubjectTypical measurementNote
The viral claimHuman torso lengthForced perspective photography, not a real measurement
Largest solifuge species12 to 15 cm (5 to 6 in) including legsMiddle East, North Africa and southern Africa
Typical solifugeAbout 5 cm (2 in) overallThe animal most people actually encounter
US southwest speciesRoughly 2.5 to 4 cm (1 to 1.5 in)Much smaller than the ones in the photos
Common house spiderAround 1 cm body, wider leg spanFor scale, in most homes

Put simply, a large camel spider covers the palm of your hand. That is genuinely striking in person, and it explains why the photographs are unsettling even when nothing is exaggerated.

Do camel spiders bite, and does it matter?

They can bite, though it is uncommon and it nearly always follows handling. The important part is what is missing: solifuges have no venom glands and no delivery apparatus, so nothing is injected. The Burke Museum is explicit that they have no venom and not even an anesthetic.

Instead, what remains is mechanical. The chelicerae are proportionally the largest jaws of any arachnid, and on a big specimen they can break skin. So a bite behaves like a small pinching cut rather than like a venomous sting: it hurts at the time, it may bleed a little, and it settles.

For context on the bites that do matter, our bug bite identification guide compares the common culprits. The black widow and brown recluse pages cover the two US spiders whose venom really counts.

Why a camel spider runs straight at you

This behavior convinced a generation of soldiers that the animal was hunting them, and the explanation is almost disappointing. After all, Solifugae comes from the Latin for those that flee from the sun. These are nocturnal desert animals, and daytime heat is genuinely dangerous to them.

So a solifuge caught in the open makes for the nearest shade. When you are standing in a desert at midday, the nearest shade is the shadow you cast. The animal sprints toward it, you step aside, and the shadow moves with you, so it sprints again. From the outside that looks exactly like pursuit.

Understanding this also defuses it. Stand still and let the shadow stay put, or move so your shadow falls somewhere the animal can reach, and the chase ends immediately.

Where camel spiders live, including the United States

Solifuges occupy hot, dry country across the Americas, southern Europe, Africa, the Middle East and south Asia. Australia and Madagascar have none. So the animal is far more widespread than the war stories imply, and it is not exclusive to Iraq or Afghanistan.

They live in the United States too, which surprises people who assume the animal is foreign. Look for them across the dry southwest: California, Arizona, New Mexico, Nevada, Texas, and parts of Utah and Colorado. American species are much smaller than the Middle Eastern ones. Most run about an inch to an inch and a half, so they rarely read as the creature from the photo.

What they eat, and how long they live

Camel spiders are generalist predators, and they hunt by running prey down instead of building a web. Their diet covers insects, spiders, scorpions and occasionally small lizards or rodents. The chelicerae then cut the prey apart, which is what those oversized jaws are for.

Their sensory kit is unusual. Fan-shaped organs called malleoli hang beneath the last pair of legs and read chemical traces from the ground, which helps locate prey in the dark. No other arachnid order carries them, so they are a reliable identification feature as well as a useful tool.

Most species live about a year and breed once in that time. Females lay somewhere between 50 and 200 eggs, and some guard them. The young then pass through a postembryo stage and nine or ten nymphal stages.

Found something else with too many legs? Our spider identifier works through the common families, and the insect identifier gives an answer from a photo.

Pest control disclaimer. Photo-based identification can help, but it is not always perfect. For dangerous spiders, large infestations, or anything you are unsure about, contact a licensed pest control professional.

Frequently asked questions

What is a camel spider?
A camel spider is an arachnid in the order Solifugae, and it is not a spider at all. There are more than 1,000 described species in about 147 genera. The same animal is also called a sun spider, a wind scorpion, a solifuge and a sun scorpion, so all those names point to one group.
Are camel spiders poisonous?
No, and they are not venomous either. Solifuges appear to have no venom glands and no way to deliver venom even if they had it. Poison is something that harms you when eaten, while venom is injected, so neither word fits. A camel spider hurts only in the mechanical sense that its jaws are large.
How fast can a camel spider run?
Around 10 miles per hour at the very most. Rod Crawford, Curator of Arachnids at the Burke Museum, notes that 10 mph is the fastest figure in the scientific literature, and that the only carefully measured speeds he could find were under 1 mph. The viral claim of 25 mph is simply wrong.
How big do camel spiders get?
The largest species reach about 12 to 15 cm, or 5 to 6 inches, and that measurement includes the legs. Body length alone tops out near 7 cm. Most species are far smaller, closer to 5 cm overall, so the animal fits comfortably in a hand rather than on a torso.
Do camel spiders bite?
They can, though it is uncommon and it happens only when one is handled or trapped. There is no venom involved. The chelicerae are large enough to break skin, so a bite is a mechanical wound that hurts, bleeds a little and then needs ordinary cleaning. Watch it for signs of infection like any other cut.
Do camel spiders chase people?
They chase your shadow, not you. The name Solifugae comes from Latin for those that flee from the sun, and a desert animal caught in the open heads for the nearest shade. If you are standing there, the nearest shade is the patch you are casting, so the animal runs at you and it looks like pursuit.
Can camel spiders scream?
No. They have no vocal apparatus and no way to produce a scream. Some species make a faint rustling or rasping sound by rubbing body parts together, which is called stridulation, but it is nothing like the shriek described in the war stories.
Do camel spiders eat camels?
No, and they do not burrow into camel stomachs either. That story is where the name came from rather than a description of real behavior. Solifuges eat insects, spiders, scorpions and occasionally small lizards, and nothing in the order is capable of feeding on a large mammal.
Do camel spiders numb you and eat your flesh while you sleep?
No. This is the most repeated claim from the Iraq War and there is nothing behind it. Solifuges produce no anesthetic of any kind, they are not attracted to sleeping people, and no documented case exists. The story follows the classic urban legend pattern of always having happened to a friend of a friend.
Are there camel spiders in the United States?
Yes. Solifuges live across the dry southwest, including California, Arizona, New Mexico, Nevada, Texas and parts of Utah and Colorado. American species are much smaller than the Middle Eastern ones that appear in the photos, usually running about an inch to an inch and a half.
Is a camel spider actually a spider?
No. Both are arachnids, so they are relatives, but camel spiders sit in their own order. Real spiders make silk and carry venom in small fangs, and camel spiders do neither. Camel spiders also have one central pair of eyes rather than the eight that most spiders carry.
How many legs does a camel spider have?
Eight legs, the same as any arachnid, though it looks like ten. The front pair of limbs are pedipalps, which work as feelers and as grabbing tools rather than for walking. Counting them as legs is the usual mistake, and it is why people describe a ten legged spider.
What do camel spiders eat?
Whatever they can catch and overpower. They are generalist predators that take insects, spiders, scorpions and sometimes small lizards or rodents. They hunt by running prey down rather than by building a web, then cut it up with the chelicerae.
Are camel spiders dangerous to humans?
Not really. With no venom, no disease role and no interest in people, the realistic risk is a painful nip if you pick one up. Compare that with a black widow or a brown recluse. Both carry venom that matters medically, so the camel spider is the far less serious animal.
Why is it called a camel spider?
Because of the old story that it attacks camels, plus the humped look of the body in some species. Neither reason is flattering and the first one is false. The scientific name Solifugae is more accurate, since it describes an animal that runs from the sun.
How long do camel spiders live?
About a year for most species. They are typically univoltine, which means one generation a year. The young pass through an egg stage, a postembryo stage, then nine or ten nymphal stages. Females lay somewhere between 50 and 200 eggs.
Are camel spiders aggressive?
They look it and they are not. Fast movement, large jaws and a habit of running toward your shade read as aggression, yet the animal is trying to hunt insects and stay cool. Leave it alone and it has no reason to approach you at all.

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