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Sac Spider Identification and Control in Utah

Correct identification is an important first step in pest control.

Cheiracanthium Spp.
Cheiracanthium Spp.

Sac spiders are a yellowish color. The ends of their legs have brown to black tufts of hairs that look like socks. They have eight eyes.

Sac spiders can be found indoors and outdoors. They can be found under bark, rocks, leaf litter, in rolled leaves, behind or in clutter and storage. They often make a silk, saclike retreat where walls meet other walls or ceilings, or other hidden places. They spend the day in the sac and hunt at night. They easily climb slick surfaces.

Need help controlling sac spiders?

Thorn Pest Services Identify the pest with our Sac Spider gallery

ARE THEY DANGEROUS
ARE THEY DANGEROUS

They are not known to be a health hazard, but can aggressively bite when trapped against the skin. And they have a painful bite similar to a bee sting.

Learn more by reading our blog post: Utah Spiders: Guide to Identification and Prevention.

Name:

Cheiracanthium spp.

Impact:

Painful bites

Habit:

Nocturnal, meaning they are awake at night

Thorn Pest Services Tips for keeping sac spiders away

How To Keep Spiders Away
Pest control experts
  • Minimize their harborage around the property.
  • Seal exterior cracks and crevices to reduce hiding places.
  • Install tight-fitting door sweeps and window screens.
  • Change exterior lighting to sodium vapor or yellow bulbs.
  • Regularly vacuum individuals and webs.
  • Reduce clutter indoors and outdoors.
  • Reduce insects that serve as food.
About Yellow Sac Spiders
Pest control experts

These small spiders are hunters capturing their prey by running up onto them. They often make a silent retreat to hide in. These spiders were not common in the US in the early 1900s but have become a common household spider across the United States. These spiders do have a painful bite and are more prone to biting than other spiders of similar size.

Don’t let sac spiders take over.
Thorn can help.

Fill out the form below to contact us so we can help eliminate your spiders fast.

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Thorn Pest Solutions

How thorn can help

Pests can be difficult to control, but that’s what we are here for. We create a strategic plan to gain control of your problem and make sure we get results.

Thorn's Approach

We take a scientific approach to pest control. We start with an inspection and assessment to help us identify the pest, locate where they are, and create a specific plan for your property. Every home and business is different and requires a unique strategy.

Black Beetle. Thorn Diagram.

Thorn Pest Services

Driven by science.
Led by service.

Proper pest management starts with a detailed inspection and assessment from an expert pest professional before treatment. Thorn Pest Solutions uses a three-step process rooted in science to eliminate pests with long-term results.

Assess Situation

First, we identify the root problem(s) with a site assessment. Pests are almost always an indicator of an environmental condition. This will determine the best actions to provide short and your long-term results against pests.

Execute Action Plan

Next, we develop a plan to fix the problems we discovered. This includes solving current pest issues, eliminating conducive conditions, and monitoring for future pest activity. Good pest management starts with a good plan.

Track Success

Lastly, we implement the solutions we developed including inspection, monitoring, and preventing future pest infestations. Good pest control requires a good offense and not just defense. Prevention is key.

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Thorn Pest Services Other common Utah pests

Thorn pest control services in Utah. Hear From Our Customers

  • Rick Bassir
    Roy, was great! Very hard worker and we were very impressed with his professionalism and kindness. Thank, Roy/Thorn
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    The service has been mire than excellent. Plugged holes caught mice and have been great at communicating everything.
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    1-7-2026 Jacob was so cheerful and experienced. It was such a comfort to know that he knew what to look for and how to take care of things quickly. He was so careful to put shoe coverings on each time he walked back down from the attic where he was setting traps for the rodents. He took time to explain things and I was so grateful he identified where they were coming in from near my AC unit and filled that opening with steel wool so they won't be able to come into my house any more. Please tell him Thank You very much! You have a wonderful service and I am very grateful! 2-5-2026 Yesterday Ricky came to check the traps in my attic for any rodents. He had a headlamp on so he could have his hands free as he was checking the traps. He was careful to wear shoe covers in my house and took time to explain what he was looking for in the attic to see if there were traces of feces or places where light from the outside would indicate an access point for rodents. He did find one and took a picture of it before he disposed of it and was able to let me know where it had been located. He reset and rebaited the traps in my attic. None of the other traps in the attic had been sprung. We both came to the conclusion there had not been any recent activity. He told me to let them know if I suspect any more activity. Your company does provide a wonderful service and your technicians are cheerful and experienced! Thank you!
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    The guy that came over was so kind and professional, he made sure everything was thoroughly sprayed and taken care of!!
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    Cliff does the pest control at our house A recorder, he is very communicative and punctual. He shows up, his quiet respectful, does his job, and the way he goes. Thank you for coming to our house. I have noticed a decrease in The bug population. Well worth the money to have Elite on your team.
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    Bayron seemed knowledgeable about our lack or voles or moles. Glad that's not our problem. We're still trying to figure out what's going on. Apparently mole crickets aren't a thing in norther Utah.
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    Thorn Pest Solutions is the BEST in service, efficiency and results!!
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    Easy to schedule, dependable, good service!
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    Jacob always does a wonderful job at my house. He is professional and so friendly. I love having him come to my home. Plus I trust him. Thanks Jacob!!
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    Great company and they make it easy to schedule appointments. The techs are always the courteous and respectful.
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    We have really appreciated Jacob’s service. He is polite and thorough. He lets us know ahead of time when he is coming. The service is great as it has really improved our pest problems!
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    Rich is the kind of professional I had hoped to work with! He clearly knows his stuff and explains things well. He is friendly, courteous and professional, and I feel confident he will help us finally get a handle on our rodent issues.
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    You do not do the job we still have wasp and ants and bugs
  • Bailee Olsen
    We’ve had a great experience with Thorn Pest Control, especially Rhett. We had a horrible mouse problem and within a couple weeks he had it under control and it’s no longer a problem. He’s always friendly and professional, and he goes out of his way to make sure we feel taken care of. He explains everything step-by-step and answers any questions without making you feel rushed. We couldn’t ask for better service—highly recommend Rhett!
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    We have been with this company for over 10 years and have been so pleased with their work. They have such kind and friendly tech’s including the office staff who all have gone above and beyond to make sure we are taken care of and satisfied! They are affordable and well worth it! We would recommend them to anyone!!
  • Ross Peterson
    Mark is always through and explains the process. I appreciate his unhurried manner and the close inspection of our property. Great job!! As always, Mark did a thorough inspection and treatment. Of several pest control companies that I have used in the past, Thorn is the best by far!
  • Alyssa
    This is a great company with some exceptional service techs. Rhett's work is always professional and he always makes sure to take care of all my requests in and outside of the home . He is very kind and I'm glad he services my home!
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    I have been a Thorn customer for many years and plan to be for many more. They are always friendly and professional, and keep all the bugs away. I love that they are pet friendly as well so I don't have to worry about my dogs getting sick.
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    Travis is absolutely incredible! He is very knowledgeable and always has a solution for any issues that come up! Seriously so grateful for him and all he does to ensure my property is taken care of!
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