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What Types of Spiders are Native to Southern California?

With nearly 40,000 types of spiders worldwide (that we have identified) it can be almost impossible to pinpoint exactly where each type of spider originated. But, it is helpful to know which types of spiders are typically found in your area. This knowledge can help you choose the right type of spider control for your home. In addition, it will also help you recognize spiders that are potentially dangerous to humans. In Southern California, there are a number of spiders that are native to the area and many more that originated elsewhere but have managed to secure a spot in the local ecosystem. Below are a few examples of spiders you may encounter in Southern California and tips on how to deal with them.


Tarantulas are the type of spiders that can cause nightmares for some people. They are large and have a very menacing appearance. Some types of tarantulas are native to Southern California. This means that they are suited for the climate in this part of the country. The good news is that tarantulas generally prefer to stay out of sight. Pool filters and burrows inside gardens and flower beds are spots that the tarantulas that are native to Southern California prefer to spend their time. One time of year that you are more likely to encounter a tarantula is during the fall. This is because it is the time of year that male tarantulas are out searching for a mate. If you have a pool or garden keep an eye out for tarantulas when you work in these areas of the yard. Knowing that they could be around may save you from some of the shock that comes along with seeing a giant spider crawling nearby.

Black Widow

While tarantulas are feared for their sheer size, black widow spiders are feared for the danger they pose to humans. A bite from a black widow has the potential to do serious harm to a person. These spiders can be found in many parts of the country including Southern California. They are black and often have a marking on their abdomen that is red and shaped like an hourglass. There can be variations in the markings. If you come across a spider that could be a black widow be sure and use caution when dealing with it. If you ever get bit by a black widow you need to seek out medical help as quickly as possible.

American House Spider

As its’ name suggests, this type of spider can often be found in homes around Southern California and throughout much of the US. This spider does not grow to the size of a tarantula and is not a significant threat to humans like the black widow. But, neither of these facts means that you want to allow this type of spider to stick around in your home. Keeping your house tidy and free from other pests are two ways to minimize your likelihood of having this type of spider in your house.

Yellow Sac Spider

The yellow sac spider is another type of spider that is commonly found in homes in Southern California. You may have heard that the bite from a yellow sac spider can make people ill. However, there is no data to support the idea that these spiders pose a major threat to the physical wellbeing of the people living in your house.

These are a few examples of spiders that you may find in or around your Southern California home. If you have an infestation of any of these types of spiders-or others not listed here-get in touch with a local pest control company. A local pest control company will be familiar with the types of spiders that frequent your area and have the tools and equipment to successfully deal with them.