Tarantulas (Theraphosidae)

Tarantulas are large, ground-dwelling, venomous arachnids known for their hairy appearance and slow movements. While they might look intimidating, most species are shy and avoid human contact. These spiders are part of the Theraphosidae family and can be found in warm regions across the U.S.. Nearly all of the North American tarantula species are included in the genus Aphonopelma. Learn about their behavior, habitats, and the risks associated with tarantulas.

What are tarantulas?

Tarantulas often stir up fear because of their size and appearance, but there's more to them than meets the eye. Knowing how they behave, where they live, and when to be cautious can make it easier to manage encounters with them.

The lifecycle of tarantulas

The lifecycle of tarantulas begins in the fall, when mating typically occurs. Males wander in search of females and often die shortly after mating. Females lay their eggs in a protective silk cocoon and guard them closely. This process supports the survival of hundreds of spiderlings.

Here’s a breakdown of the tarantula lifecycle:

• The mating season is in autumn. 
• Incubation of the young takes six to nine weeks, with each female producing 500-1000 eggs into a silken cocoon. 
• The young leave their burrow after two to three weeks.
• As they grow, young tarantulas go through a process called molting, where they shed their exoskeleton multiple times before reaching maturity. This critical phase allows them to increase in size and repair any injuries.
• Life span 25-40 years (females tend to live longer than males)

Seasonal behaviors of tarantulas

During warmer months, tarantulas stay hidden in burrows to avoid predators and extreme heat. As temperatures drop in the fall, they become more active, especially males looking for mates. These seasonal changes are when homeowners may notice more activity, often prompting concerns, and likely need our tarantula control experts.

Habitat and diet of tarantulas

Tarantulas have adapted to many different environments across the world. Where they live and what they eat can vary, but most stay close to the ground and rely on stealth to hunt. Their survival depends on having the right conditions for shelter and a steady supply of prey. 

Preferred environments

Tarantulas typically thrive in arid or semi-arid climates. You’ll often find them in deserts, scrublands, and grasslands. They avoid moist or overly compact soil, preferring dry, well-drained areas—ideal for digging. They may also move into sheds, garages, or other quiet corners if outdoor conditions become harsh.

What do tarantulas eat?

Tarantulas are skilled ambush hunters. They eat insects, small lizards, and sometimes even small rodents. They inject venom to subdue their prey, then use digestive fluids to break it down before feeding. This process, though unsettling to watch, plays an important role in controlling insect populations naturally.

Managing tarantulas

While tarantulas don’t usually pose a serious threat to people, seeing them around your home can be distressing. For peace of mind, it’s important to understand both preventative measures and when to call in tarantula pest control.

Preventing infestations

The following steps can help deter tarantulas from settling near your home:

• Clear away wood piles, yard debris, and stones
• Seal gaps in walls, windows, and doors
• Use well-fitted screens and weather stripping
• Keep outdoor lights to a minimum (they attract insects, which in turn attract tarantulas)

These tips may help reduce sightings, but they aren’t always enough to stop the problem at its source.

Effective tarantula control methods

For the most effective approach to tarantula pest control, professional help is key. The Presto-X team understands local tarantula species, their behaviors, and where they’re likely to hide. We tailor our tarantula extermination methods to fit your property and its conditions.

Frequently asked questions