Bull Horned Spider Found In Arizona!

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The bull horned spider was recently found in Arizona. And people are a little taken aback by this spider. The fact is that not many people know enough about this spider species. Therefore, I’m about to tell you everything you need to know about the bull-horned spider!

What is the bull horned spider?

The bull horned spider is a genus of spiders that contains the species Macracantha arcuata. This spider is found in Asia and is identified by the two large horns on its head. The horns are usually a reddish color, which makes them quite conspicuous.

bull horned spider

The bull horned spider is so named because of the long curved spines on its heads. These spiders can be found in the deserts of Arizona and are distinguishable by their black and hairy bodies.

This type of arachnid can be found in the desert regions of Arizona. These spiders are not typically aggressive, but they will bite if they feel threatened.

Interestingly, the bull-horned spider’s horns that help it defend itself from predators also help them attract mates.

Because the bull-horned spider is new to science, there isn’t much information on it. The bull-horned spider was only discovered in 2007, and not much is known about its habits or biology.

What is known is that the spider has two large horns on its head, and that that characteristic, as I’ve mentioned, is the source of its name.

What does the bull horned spider look like?

We already know that the bull horned spider is a small, brown spider that has two horns on its head. It is approximately 5 mm in size and has stout, conical spines. Now, as I’ve said, the horns on a bull-horned spider are their most distinguishing feature.

Further, the bull horned spider is brown in color and has yellow markings on its abdomen. These spiders are found in Arizona and live in desert areas. The bull-horned spider can also be found in the United States and Mexico.

In what habitat can you generally find bull-horned spiders?

bull horned spider habitat

Bull-horned spiders are found in North American habitats and build large orb webs in forested areas.

These spiders can also be found in a variety of habitats throughout Arizona but are most commonly seen near their webs. Females are more often observed near the web’s periphery, while males tend to hang in the center of the web.

You will also notice that these bugs are typically found in the primary rainforest, which is a forest that is well protected and has not been disturbed by humans. This type of spider is very sensitive to environmental changes and can die out quickly if its natural habitat is destroyed.

Is the bull-horned spider an orb weaver spider?

Yes, the bull-horned spider belongs to the Asian orb-weaver spider genus.

The reason why they are referred to as orb weaver spiders is that scientists have observed that most of the webs constructed by this species are either circular or spiral in shape. ‘Orb’ in itself means circular. Therefore, the name ‘orb-weaver spiders.’

Do orb-weaver spiders bite humans?

Orb-weaver spiders are often considered beneficial because they help to control populations of other pests. These spiders are not aggressive and are often reluctant to bite humans.

It is a known fact that most orb-weaver spiders would much rather scurry away to their hiding places than confront a human being or bite them or any other predators. The only exception to that particular rule is if you provoke it too much.

Now, you might hear names like yellow garden spiders or banana spiders too. But, these are simply different names for different types of orb-weaver spiders, and these spiders don’t bite humans either.

Though orb weaver spiders have venom, it is not harmful to humans, and there is nothing to worry about if you are bitten.

The worst symptoms will only occur if you’re allergic to orb spider venom. Otherwise, you’ll simply have to worry about a rash or welts as a result of that rash.

In conclusion, while most orb-weaver spiders weave their webs away from the usual places humans go to, it would be unusual to encounter them everywhere.

So if you are ever in Arizona and see a spider with horns on its head, don’t be alarmed because it is just a harmless bull-horned spider!

How do bull horned spiders mate on the silk threads of their webs?

bull horned spider silk web

Bull horned spiders are species of spiders that mate on the silk threads of their webs. The mating process is conducted through vibratory courtship.

If the female is receptive, mating occurs on the thread. Bull horned spiders use their horns to grab the silk threads of their webs and tie them together.

Interestingly, bull horned spiders mate by grabbing each other with their horns and pulling until they fall off the web. Then mating takes place.

These spiders are also known for spinning very strong silk webs that can hold large prey items, like birds or small mammals. The strength of their silk is what enables them to mate on them!

Are orb-weaver spiders such as the bull-horned spider poisonous?

Orb-weaver spiders, such as bull horned spiders, are not poisonous to humans. While their bite may cause some pain and swelling, it is not considered dangerous or poisonous.

The fact is that the venom of an orb weaver spider like the bull-horned spider is only strong enough to paralyze or cause serious harm to prey like flies, wasps, and the likes of such insects.

These spiders catch their prey and inject them with venom using their little fangs. The venom immobilizes the prey so that the spider can suck out the juices.

Are orb-weaver spiders like the bull-horned spider poisonous to dogs?

Orb-weaver spiders, including the bull-horned spider, are generally considered harmless to both humans and pets.

While there are a few orb-weaver species that have venomous bites, the vast majority of these spiders pose no threat to dogs. In fact, orb weavers are often used as natural pest control since they prey on other insects.

In fact, the venom of the bull horned spider is so mild that it has yet to be determined whether it is poisonous at all!

In short, there is no significant danger to dogs if they try to eat orb weaver spiders. Although the spiders might bite an inquisitive dog inside its mouth, it would not cause any severe complications.


And that’s all you need to know about the bull-horned spider. The fact is that there is much to be learned about this particular arachnid species. As of now, the bull-horned spider is famous for the horns on its head, and I must admit, they look pretty cool!

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.