The Most Common House Spiders
Spiders entering homes is an extremely common occurrence, but when exactly should you start to worry if one could harm you or your loved ones? While some spiders are harmless, others can be quite dangerous. In this guide, we will discuss the most common house spiders, which ones to be afraid of, and how to get rid of them.
Some Info About Indoor Spiders
First, they usually don’t cause any harm. The most common types of spiders found in homes are web-building spiders, such as the American house spider and the European house spider. These spiders build webs in dark, sheltered areas, such as closets, basements, and garages. They eliminate mosquitos and other pests, so they may actually be beneficial.
Other common indoor spiders include cellar spiders and jumping spiders. Cellar spiders are often found in the basement or crawlspace, while jumping spiders prefer to live near windows and doorways. Most spiders contain venom, but a lot of them are not harmful to humans. However, each venom contains chemical compounds which may be medically beneficial.
Spiders’ eating habits also help to control the spread of bacteria and germs. When you consider the illnesses that roaches, fleas, mosquitoes, and flies transmit, any reduction in these pests will aid in the prevention of disease transmission.
House spiders are not aggressive and do not inject venom in comparison to other types of spiders. Spiders are more likely to bite when they sense they are threatened, but they would rather run away from people than assault them.
When identifying spiders, it’s helpful to understand a bit about their anatomy. Spiders have eight legs and two body parts: the cephalothorax and the abdomen.
The presence of silk is one of the most common ways to identify spiders. These are generated by organs called spinnerets, which all spiders possess, that sit at the end of their abdomen. Although every spider has spinnerets, not every kind spins webs.
How to Identify Common House Spiders
The easiest way to tell which type of spider you’re dealing with is by looking at its body shape. Web-building spiders have a round abdomen, while cellar spiders and jumping spiders have a more elongated bodies.
You can also identify spiders by their markings. American house spiders are brown with white stripes on their abdomen, while European house spiders are all black. Cellar spiders may be light brown or yellowish-white, and jumping spiders are typically brightly colored.
Types of Spiders Without Poisonous Bites
House spiders are very beneficial to have in your home because they eat other pests, like flies and mosquitoes. There are only a few types of house spiders that have poisonous bites, and we’ll discuss those later. For now, let’s focus on the most common types of harmless spiders.
Here are the four types of spiders that are commonly found in homes without poisonous bites:
American house spider
These spiders are small, with a body length of about .25 inches. They’re light brown or tan in color and have long legs. American house spiders build their webs in corners and crevices.
European house spider
These spiders are also small, but they’re a little bit bigger than American house spiders, with a body length of about .50 inches. They’re light brown or gray in color and have long legs. European house spiders build their webs in corners and crevices.
Barn spiders are large, with a body length of about .75 inches. They’re dark brown or black in color and have long legs. Barn spiders build their webs in the corners of ceilings and walls.
Crab spiders are tiny, with a body length of about .25 inches. They’re light brown or tan in color and have short legs. Crab spiders do not build webs; instead, they hunt their prey.
Types of Spiders With Poisonous Bites
The seven most common types of spider with a poisonous bite:
How to Get Rid of Spiders
If you’re worried about spiders in your home, there are a few things you can do to get rid of them.
Seal up any cracks or crevices in your home
Spiders can enter your home through small cracks and crevices, so sealing them up will help keep them out.
Use a spider repellent
There are a few different types of spider repellents available, including sprays, pellets, and traps.
To remove spiders, their webs, and egg sacs, you should also practice good sanitation to prevent spiders from being attracted to your home. Eliminate clutter and store boxes off the floor and away from the walls.
Frequently Asked Questions
What are the natural ways to kill spiders?
Peppermint oil, vinegar, and eucalyptus oil are a few natural deterrents that can be used to keep spiders out of the house.
Are all spiders poisonous?
The venom of most spiders is not harmful to humans. However, there are a few types of spiders whose venom can be dangerous, including the black widow spider and the brown recluse spider.
Can I kill spiders with insecticide?
Insecticides effectively kill spiders, but it’s important to read the label carefully and follow directions. It’s also essential to avoid using insecticides in areas where there are children or pets.
What should I do if a spider bites me?
If a spider bites you, it’s crucial to clean the bite site with soap and water and apply a cold compress. If you experience any symptoms that seem unusual or if the bite site becomes swollen, call your doctor.
What causes spiders to come into a house?
Spiders can enter a home in search of food or shelter. They may also be attracted to moisture and darkness, which is why they often live in secluded areas like the basement, attic, or crawlspace.