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Guide To Common Spiders In Las Vegas


December 18, 2019

Are you new to the Las Vegas area? If so, it is a good idea to get familiar with common Las Vegas spiders. Some of the spiders that can come onto your property and get inside your home are highly venomous. Let's take a closer look.

black widow spider in a plant

Black Widow Spider

Identification — Spiders of this classification are jet black in color, shiny, hairless, and may have a red hourglass shape on the bottom of the abdomen, depending on the species and whether or not the spider is male or female. Females are around 1.5 inches in length and males are half that size.

Threat — A bite from a black widow spider can be dangerous but is rarely life-threatening. The severity of symptoms is dependant on how much venom the spider injects into the wound. Trapping a black widow spider can lead to a greater level of envenomation.

Brown Recluse Spider

Identification — Spiders that belong to this classification are tan in color and have a brown violin marking on their backs. They are visually hairless and a little larger than a quarter in size.

Threat — Brown recluse spiders are known for their necrotic bites. While it is certainly important to be cautious with these spiders, most bites do not result in necrosis spreading through tissue.

Desert Tarantula

Identification — If you see a large, hairy spider in your Las Vegas home, it is likely a desert tarantula. The leg span on a desert tarantula can be up to 4 inches. Males are smaller than females.

Threat — A bite from one of these spiders can make you very sick but it is not generally life-threatening. The concern with these spiders is often the allergic reaction to venom. The hairs of a tarantula can cause an allergic reaction of another kind. The hairs they brush off their bodies can cause an itchy rash on human skin.

Giant Crab Spider

Identification — These spiders are about the size of a black widow (1.5 inches). They are hairy spiders with a brown or beige coloration.

Threat — The bite of a giant crab spider can be compared to a bee sting and its venom is not considered to be medically important to humans.

Jumping Spider

Identification — These are small, furry spiders that are usually black in color with pale markings.  

Threat — These spiders can bite but their venom is a low threat.

Spider Management in Las Vegas

  • Seal gaps, cracks and holes around your home to prevent spiders from getting in. Some common entry points for spiders are gaps around pipes, wire conduit, door and window frames, garage doors and exterior doors on the home. They may also get in through holes created by wood-damaging pests.
  • Moisture will lure spiders in close to your home. Reducing moisture will work to reduce spider populations. Address conditions that create puddles in your yard. Clean your gutters out to allow rainwater to flow away from your exterior. Put space between the plants in your landscaping to allow the wind to easily pass between your plants and dry your topsoil after watering.
  • Reduce bugs around your home. Spiders come to eat insects and other bugs. Everything you do to control bugs will work to help control spiders.
  • Remove webs when you see them. This will get rid of eggs before they hatch near your home.

The best way to control spiders around your Las Vegas home is to invest in a residential pest control program. If you need assistance with this, reach out to Ace Pest Control. We don't just help get rid of pests, we can give you the protection you need to prevent infestations. Reach out to us today. We're here to help.

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