Are camel spiders venomous?

No. Camel spiders have no venom glands and are not venomous. They can deliver a painful bite with their large chelicerae (jaw-like mouthparts), but the bite is a mechanical wound only — there is no venom involved. Clean the bite site and monitor for infection, but no antivenom or special medical treatment is needed.

How fast can camel spiders run?

Camel spiders can run approximately 10 mph — impressive for an arthropod, but far less than the 25 mph claimed in popular myths. They appear to chase humans because they seek shade, and a person shadow provides it. They are not chasing you — they are chasing your shadow.

Are camel spiders dangerous?

No. Camel spiders are not venomous and are not medically dangerous. A bite can be painful due to their large mouthparts, but it is a mechanical wound only. They are not aggressive toward humans and will not bite unless handled or cornered.

What do camel spiders look like?

Camel spiders are tan to brown, 1 to 3 inches long, with a large head bearing massive jaw-like mouthparts that can be up to one-third of their body length. They have 10 appendages (8 legs plus 2 pedipalps). They move very quickly and are often seen running across desert ground at night.

When are camel spiders active in Arizona?

Camel spiders are most active from May through September, particularly during warm nights. They are nocturnal and are attracted to light sources that attract their insect prey. Activity peaks during and after monsoon season.

What should I do if I find a camel spider in my house?

Capture it using a container and cardboard and release it outside. Do not handle it directly — the bite is painful. They are not infesting your home; finding one inside is a random entry event. If you find them inside regularly, have your home inspected for entry points.

Do camel spiders infest homes?

No. Camel spiders are solitary and do not infest homes. They enter occasionally while hunting or seeking shade. They do not breed indoors, do not form colonies, and will not establish a population inside your home.

Are the photos of giant camel spiders real?

The photos showing camel spiders the size of a human arm are real photos taken with forced perspective — the spider is held close to the camera while a person stands further back, making the spider appear enormous. The largest Arizona camel spiders reach about 3 inches in body length.

Spiders & Arachnids

Camel Spiders in Arizona: Facts, Myths & What to Do

Back to Blog7 min readArizona

Not Venomous — Not Dangerous

Camel spiders have no venom glands. Despite their alarming appearance and internet fame, they are harmless to humans and pets.

Camel spiders are one of the most feared arachnids in Arizona — and one of the most misunderstood. They are not spiders, not venomous, and cannot run 25 mph. Learn the real facts about camel spiders, how to identify them, and what to do if you find one in your home.

Camel spiders (order Solifugae) are large, fast-moving arachnids found throughout Arizona desert regions. Despite their common name, they are not true spiders — they belong to a separate arachnid order and lack venom glands entirely. They are also called sun spiders or wind scorpions. Camel spiders are tan to brown in color, 1 to 3 inches long, with a large, distinctive head bearing massive chelicerae (jaw-like mouthparts) that can be up to one-third of their total body length. They have 10 appendages — 8 legs plus 2 pedipalps used for sensing and manipulating prey. Camel spiders are voracious predators that hunt insects, small lizards, and other arthropods. They are most active at night and are attracted to light sources that attract their prey.

Myths vs. Facts

They run 25 mph

Top speed is about 10 mph — still fast for an arthropod

They are venomous

No venom glands — completely non-venomous

They scream

They produce no sound

They eat sleeping soldiers

They eat insects, small lizards, and other arthropods

They grow to dinner plate size

Largest Arizona specimens reach about 3 inches body length

They chase humans

They chase your shadow — they seek shade, not you

Camel spiders have accumulated an extraordinary collection of myths — that they run 25 mph (they actually top out around 10 mph), that they scream, that they inject anesthetic venom and eat sleeping soldiers, and that they can grow to the size of a dinner plate. None of these are true. Their actual top speed of 10 mph is still impressive for an arthropod, and their large chelicerae can deliver a painful bite if handled, but they are not venomous and the bite, while painful, is not medically significant beyond the mechanical wound. The dramatic photos that circulated online showing enormous camel spiders were taken with forced perspective. In reality, the largest Arizona camel spiders reach about 3 inches in body length. They are commonly found in desert areas, under rocks and debris, and occasionally enter homes — particularly during summer nights when they are attracted to porch lights.

What to Do If You Find One

Camel spiders are not a pest species and do not require treatment. They are solitary, do not form colonies, and are beneficial predators of insects and other arthropods. Finding one in your home is a random entry event — they are not infesting your home. The appropriate response is to capture and relocate it outdoors using a container and cardboard. If you are finding them inside regularly, the issue is likely gaps in doors, windows, or the foundation that are allowing entry. Sealing these entry points addresses the problem. Camel spiders are fascinating and ecologically important desert predators — if you can tolerate their appearance, they are genuinely beneficial to have in the yard.

Finding Desert Arachnids Inside Your Home?

We inspect for and seal the entry points that let camel spiders, scorpions, and other desert creatures inside. Serving all of Maricopa and Pinal County.

(520) 424-5244 — Free Inspection