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Hobo Spider Identification and Control in Utah

Correct identification is an important first step in pest control.

Tegenaria Agrestis
Tegenaria Agrestis

Correct identification of a hobo spider can be difficult and really requires a microscope to examine the reproductive structures of the spider. That being said here are some things to look for:

  • Adult hobo spider bodies are up to 3/8 of an inch long (longer if you include the legs)
  • Does not have two distinct stripes on cephalothorax – Hobo has more diffused pattern
  • No dark rings around the legs
  • Legs and cephalothorax are not shiny

You may not be able to know if a spider is a hobo for sure or not with these keys, but you can usually identify when a spider is not a hobo spider.

Hobo spiders can be found outside in grass, gardens, ornamental plants and trees, along foundations, log piles, under rocks and lawn ornaments, etc.

When indoors they can be found in tubs and sinks or running along the floor.

Need help controlling hobo spiders?

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Why are they significant
Why are they significant

Hobo spiders do not cause necrotic lesions in humans and should be considered beneficial. They are very common indoors between August and October.


Tegenaria agrestis


Some debate but they do not appear to be dangerous to humans


Nocturnal, meaning they are awake at night

Thorn Pest Services Tips & Tricks

How To Prevent Hobo Spiders
Pest control experts

Minimize nesting habitat for hobo spiders around property such as rocks, and logs.

Seal exterior cracks and crevices and install tight-fitting door sweeps at the base o fall exterior doors.

Change exterior lighting to sodium vapor bulbs. Vacuum, step on, or smash individual spiders that enter buildings.

Catch and release (with a glass jar) spiders found indoors.

Use pest monitors to capture invading spiders, especially between August and October.

Don’t let hobo spiders take over.
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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.

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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.

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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.

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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.

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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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