Are There Tarantulas in Flagstaff AZ?

In Arizona, there are 30 different species of tarantulas, making them the largest spiders in the state. While tarantulas may seem intimidating, they are relatively harmless and generally won’t pose a threat to humans. However, it is natural to want to keep them out of your home. In this article, we will explore the types of tarantulas found in Arizona, their behavior, and how to prevent them from entering your home in Flagstaff.

Key Takeaways:

  • Tarantulas are the largest spiders in Arizona and generally harmless to humans.
  • Flagstaff, AZ is home to tarantulas, including the orange tarantula.
  • Seal cracks, declutter, and maintain cleanliness to prevent tarantulas from entering your home in Flagstaff.
  • Tarantulas embark on a journey to find mates but do not migrate in the traditional sense.
  • Coexist with tarantulas by understanding their behavior and respecting their natural habitats.

Tarantula Species in Arizona

Arizona is home to several species of tarantulas, each with its own unique characteristics and behaviors. Let’s take a closer look at some of the tarantula species found in this region:

1. Western Desert Tarantula

The Western Desert Tarantula, scientifically known as Aphonopelma chalcodes, is one of the most common tarantula species in Arizona. It is known for its large size, reaching up to 5 inches in leg span. These tarantulas have a dark brown or black coloration and are typically found in arid desert regions.

2. Grand Canyon Black Tarantula

The Grand Canyon Black Tarantula, also known as Aphonopelma bicoloratum, is another notable species found in Arizona. As the name suggests, these tarantulas have a predominantly black coloration with a velvety appearance. They are typically found in rocky areas and can grow up to 4 inches in leg span.

3. Carlsbad Green Tarantula

The Carlsbad Green Tarantula, scientifically known as Aphonopelma chalcodes, is a visually striking species with a vibrant green coloration. These tarantulas are typically found in grassland habitats and can grow up to 3 inches in leg span.

4. Tucson Bronze Tarantula

The Tucson Bronze Tarantula, also known as Aphonopelma vorhiesi, is a smaller species compared to the previous ones, with a leg span of around 2.5 inches. These tarantulas have a bronze coloration and are commonly found in the Tucson area of Arizona.

These are just a few examples of the tarantula species that can be found in Arizona. Each species has its own unique adaptations and behaviors that allow them to thrive in their respective habitats.

Characteristics and Behavior of Arizona Tarantulas

Arizona is home to a variety of tarantula species, each with its own unique characteristics and behaviors. These fascinating creatures are typically light to dark brown in color, with males being darker. They have densely covered legs and abdomens, giving them a hairy appearance that can be both intriguing and intimidating.

Tarantulas in Arizona are primarily nocturnal, meaning they are most active during the night. They can often be found hunting for their prey, which consists mainly of insects and small mice. While tarantulas do possess venom and fangs, they are generally not aggressive and will only bite if seriously provoked. Their bites are typically not painful and rarely cause serious complications.

It’s important to note that tarantulas in Arizona serve as prey for various predators, such as snakes, birds, and lizards. These natural predators play an essential role in maintaining the balance of the ecosystem. Despite their fearsome reputation, tarantulas are an important part of Arizona’s biodiversity and should be respected for their role in the natural world.

Table: Tarantula Characteristics in Arizona

Tarantula Species Color Size
Western Desert Tarantula Light brown Approximately 4 inches
Grand Canyon Black Tarantula Dark brown to black Up to 5 inches
Carlsbad Green Tarantula Green and brown Around 2 inches
Tucson Bronze Tarantula Brown Half an inch to 1 inch

As shown in the table, the tarantula species found in Arizona vary in color, size, and habitat preferences. These variations contribute to the rich biodiversity of tarantulas in the region.

Tarantula Migration in Arizona

Tarantula Migration in Arizona

Every year in Arizona, male tarantulas embark on a remarkable journey in search of a mate. While this is often referred to as migration, it’s important to note that tarantulas do not migrate from one specific spot to another like birds or butterflies. Instead, they leave their home burrows and venture out on what can be a several hundred feet to several miles journey in any direction. The timing and duration of this journey are influenced by factors such as age, pheromones, and changes in seasons.

Tarantula migration in Arizona is a fascinating spectacle to witness. These large spiders, ranging from half an inch to 5 inches in size, begin their journey in search of female mates. They traverse various habitats, including grasslands and deserts, as they follow scent trails left by receptive females. It’s important to note that tarantulas are solitary creatures, and their migration is driven solely by their biological need to reproduce.

Adding the image below to demonstrate the visual appeal of tarantula migration:

During the migration, male tarantulas are vulnerable to predation from snakes, birds, and lizards, which adds an extra layer of danger to their journey. However, the tarantulas themselves do not pose a threat to humans. In fact, they play an important role in ecosystems by controlling populations of insects and small rodents.

The Benefits of Tarantula Migration

The migration of tarantulas in Arizona is not only a natural marvel but also has ecological benefits. The movement of these spiders helps to disperse their genes, ensuring genetic diversity within the population. It also serves as a mechanism for reducing competition among males and preventing inbreeding.

Migrating Tarantulas Ecosystem Benefits
Male tarantulas Disperse genes and ensure genetic diversity within the population
Less competition among males Prevents inbreeding

Overall, tarantula migration in Arizona is a natural occurrence that showcases the incredible adaptability and reproductive instincts of these fascinating creatures. While they may appear intimidating, tarantulas play an important role in maintaining the balance of ecosystems and should be appreciated for their unique biological journey.

Tarantulas in Flagstaff AZ

Tarantulas, including the Flagstaff orange tarantula, can be found in Flagstaff, Arizona. The orange tarantula is commonly seen crossing and recrossing McMillan Mesa during October. These spiders are about four inches long and have carapaces and abdomens measuring approximately one inch.

While they might be active in the area during this time, tarantulas typically do not invade homes unless provoked or in search of food. They prefer to stay in their natural habitats, such as burrows or crevices in the ground. Therefore, it is unlikely that you will encounter tarantulas inside your home in Flagstaff.

If you come across a tarantula in your yard or near your home, it is best to observe it from a distance and avoid disturbing or provoking it. Tarantulas are generally docile and will only bite if they feel threatened. Their bites are rarely dangerous to humans, but it is always better to exercise caution and avoid direct contact with these spiders.

Preventing Tarantulas from Entering Your Home in Flagstaff

While tarantulas may not be a common household pest in Flagstaff, there are steps you can take to prevent them from entering your home:

  • Seal any cracks or openings in your walls, windows, and doors to prevent tarantulas from finding their way inside.
  • Keep your yard well-maintained and free of debris, as tarantulas are attracted to cluttered areas.
  • Reduce the presence of other pests, such as insects or rodents, by maintaining cleanliness in and around your home.
  • Consider installing screens on windows and doors to create a barrier and prevent tarantulas from entering.

By following these preventive measures, you can minimize the chances of tarantulas entering your living space and ensure a peaceful coexistence with these fascinating creatures in Flagstaff, Arizona.

How to Prevent Tarantulas from Entering Your Home in Flagstaff

If you want to keep tarantulas out of your home in Flagstaff, there are several effective preventive measures you can take. By sealing up any cracks or openings that these spiders can enter through, you can create a barrier that discourages their entry. Inspect your doors, windows, and walls for any gaps or holes and use weatherstripping or caulk to seal them. Additionally, make sure your window screens are intact and in good condition.

Another important step in tarantula prevention is decluttering your home. Remove any piles of debris, wood, or rocks that could serve as hiding places for these spiders. Keep your yard tidy and free from excessive vegetation, as tarantulas are less likely to venture into areas that are well-maintained and devoid of cover.

Maintaining cleanliness inside your home is also crucial in preventing tarantulas from entering. These spiders are attracted to places with abundant food sources, so make sure to keep your kitchen and other areas free from crumbs, spills, and other sources of food. Regularly clean and vacuum your home to eliminate any potential spider prey and make your living space less inviting to tarantulas.

By taking these simple yet effective preventive measures, you can significantly reduce the likelihood of tarantulas finding their way into your home in Flagstaff. Remember, prevention is key when it comes to keeping these fascinating creatures outside where they belong.

Preventive Measures Effectiveness
Seal cracks and openings Highly effective
Declutter your home and yard Highly effective
Maintain cleanliness inside your home Highly effective


In conclusion, tarantulas are indeed present in Flagstaff, Arizona, but there is no need to panic. These fascinating creatures are generally harmless and unlikely to cause significant harm to humans. By understanding their behavior and taking preventive measures, we can coexist with tarantulas without fear.

To prevent tarantulas from entering your home in Flagstaff, it’s important to seal up any cracks or openings that they can use as entry points. Additionally, decluttering your home and maintaining cleanliness will help eliminate potential hiding places and reduce potential food sources for spiders.

Remember to respect the natural habitats of tarantulas and appreciate their role in the ecosystem. Although they may be active in the area during certain seasons, tarantulas typically do not invade homes unless provoked or in search of food. Let’s marvel at their unique journey during the mating season and appreciate the beauty of these creatures in their natural environment.