Dangerous Spiders of Northern Utah

December 11, 2015

Although dangerous spiders are fairly uncommon in northern Utah, we do have a few species that can be deadly.

Specifically, we have three types of arachnids to really worry about: the black widow, the hobo spider and the desert recluse.

Find out what you need to know about these spiders, and get tips for keeping your family and pets safe.

Black Widow

One of the most dangerous spiders — and one you’ve probably heard of most often — is the black widow.

Dangerous Spiders of Northern Utah

Females of this species are black and shiny, and have a distinctive red hourglass marking on their underside. Males may not be as dark or as shiny, and they may not have the red marking (although some do). Bites from these spiders are very painful and can cause swelling and numbness.

Black widow bites also can cause serious health issues, particularly in children and the elderly.

These spiders are often found in crevices in the ground or in undisturbed rock or wood piles. They also may be found under your home’s eaves and on fences. The webs of these dangerous spiders are easy to identify, as they appear haphazard and make a crackling sound when broken.

Black widows also like to spin their webs underneath outdoor furniture and stored items in the basement, attic or garage. Before lifting something like an old sofa to move it, check underneath with a flashlight first to be sure the coast is clear.

Hobo Spider

Hobo spider bites are often confused with those of the brown recluse spider; however, the brown recluse does not live in Utah.

Dangerous Spiders of Northern Utah

Hobo spiders are brown with several distinct chevron-shaped markings on their abdomens. Males also have two large elongated appendages that look like boxing gloves or fangs, but are actually genitalia. Bites from these dangerous spiders cause immediate redness and pain along with nausea, headaches and flu-like symptoms. But more alarmingly, they can also cause the flesh in the area to actually die. Bites may not heal for years.

Hobo spider webs are easy to identify, as they are created in a funnel shape. Most often, these spiders build webs in holes and crevices near the ground, as they are not good climbers.

Desert Recluse

A relative of the brown recluse, the desert recluse can be difficult to identify, as it is tan or yellowish-tan with no distinguishable markings.Dangerous Spiders of Northern Utah

If you get close, however, you can see that these spiders have three pairs of eyes, rather than the four pairs that most other species have. Getting too close isn’t a good idea, however, as bites from these dangerous spiders cause similar effects to those of hobo spider bites.

People who suffer a desert recluse bite may experience headache, cramps and nausea. In addition, the flesh around the bite becomes necrotic, or dies. These nasty bites can take a long time to heal.

Desert recluse spiders like to live in dark places such as under rocks or in woodpiles. They can also be found in the vents, attics, basements, closets and crawl spaces of buildings throughout northern Utah. Although they do not build webs to capture prey, they do use their silk to create shelter during the day.

Now that we have creeped you out sufficiently, would you like to know more about keeping these arachnids away from your home and yard? Give us a call today at All Green Pest Control and Lawn Care. Serving northern Utah and all of the surrounding communities, we specialize in pest control and lawn maintenance services designed to keep your property safe and pest-free.

Contact us today and we’ll keep the dangerous spiders away!