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8 of the Most Common Types of Spiders in Ontario

April 24, 2015

There are billions of spiders on earth, sorted into thousands of different species spanning across all of the continents. Not all types of spiders are found worldwide, however. Below is a little insight into some of the most frequently spotted spiders in Ontario.


In no particular order, some of the most common types of spiders you’ll come across in Ontario:

Cellar Spiders

As their name suggests, these spiders are most commonly found in cellars, and other dark, dank spaces, like basements, crawlspaces, garages and outhouses. They are fairly harmless, and can be eliminated by reducing the humidity in your home.

House Spiders

Unlike other types of spiders, house spiders are more likely to be found in the main living areas of your house. They don’t necessarily stick to the dark, humid spaces that other species of spiders in Ontario often favour – a corner or under furniture will suffice. They can vary in colour from pale brown to dark black. One telltale sign of a house spider is it long front legs, which are triple the size of all its other legs.

The infamous black widow spider actually falls under this species of spider. The females, which are the ones capable of a poisonous bite, are black with a distinctive red marking on their underside. They are not aggressive, however, so unless disturbed, they pose a minimal threat to humans. Black widows are fairly uncommon in Canada. They are occasionally found along the Canada-U.S. border, but rarely in regions beyond.

Cobweb Spiders

Cobweb spiders build loose, irregular tangles of silk. They’re so fine that they often go unseen. Unlike other webs, they are not tightly woven. Insects are caught in the fine mesh and while they are struggling to get free, the spider bites and paralyzes them to keep them from struggling.

Crab Spiders

These species of spiders tend to be found on flowers, however there are many other varieties of crab spiders with different habits. They lay in wait for their prey and ambush them when they come near. Like other hunting spiders, they do not weave a web. They derived their name from their passing resemblance to crabs.

Fishing Spiders

Fishing spiders are most commonly found in waterfront areas. Though they are usually found close to the water, in brush, sand or under rocks. They can make their way into cottages or in homes that are located near rivers, lakes or ponds.

Wolf Spiders

Wolf spiders are unusual because they don’t use a web to catch their prey. They use hunting and trapping techniques to capture their prey. They are typically found in grassy or woodland areas. They are usually a mottled brown. Reaching up to 3cm, they are larger than most types of household spiders in Ontario. In the fall they migrate to warmer areas to escape the cold of winter, so they are most likely to enter your home around this time of year.

Funnel Web Spiders

These types of spiders build a distinctive funnel shaped web to capture prey. The web is made of a dense silk that tapers into a funnel shape in the centre, where the spider lays in wait for prey. These types of webs aren’t common in homes, but they are often found in gardens, shrubs, rock crevices, and underbrush.

Orb Weaving Spiders

Though these types of spiders are originally native to Europe, they are now found in Canada. They are most frequently encountered in the summer months (From July to the beginning of fall). Like most spiders, they catch prey (consisting of small insects) in webs.

As you can see there is a lot of variety in the types of spiders found in Ontario! They come in all different shapes, sizes and colours. If you are concerned that you’re dealing with a spider infestation in your house and aren’t sure which species of spider you’re dealing with, or how to kill them safely, we can help. Call Magical Pest for a free phone consultation, or book an inspection now. Reach us at (905) 738-6676.






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