9 Unexpected White Spiders In The House

The very image of spider conjures gray, brown, black, or tan colors in our mind. But that’s not always the case.

Some spiders do come in pale colors such as white, pale yellow, and even pale green. 

In this guide, we’ll specifically focus on white spiders that sneak inside homes. 

Fortunately, these white spiders in the house are not lethal like the black widow spiders and brown recluse spiders.

And given their innate nature, these tiny white spiders can be difficult to spot in the house. 

As an arachnologist, who has spent most of his life studying spiders, I’ll tell you why these white spiders enter homes, what they look like, and if they bring any risks.

Let’s dive right in.

Why are Some Spiders White?

There are many reasons that spiders can be white. One of them is genetic variations. 

Genetic variations can cause whiteness in the same spider species. Some spiders can look as same as spiders belonging to different species, but they’re white.

For example, the false widows can be white but belong to different species than the black widows. 

Immature spiders or newborn spiders can be white too. Spiders that have recently hatched out of the eggs or egg sacs can be white till they molt multiple times to grow and become an adult. 

Shed skins of spiders is pale and white. Spiders shed their skin, which is known as molting, while they grow. 

Many of these white spiders are garden dwellers where they lurk to prey on small insects. 

Weather conditions, and lack of food outdoors, force the spiders to move inside the house. 

They crawl in through the cracks on the windows, walls, and doors. Any thin gap or crevice is enough for these spiders to move inside the house. 

You can also accidentally bring spiders to the house. Bringing things like flowerpots or storage boxes with spiders in them will introduce spiders to your home. 

The presence of female spiders in the house can also cause a ton of males to sneak inside the house during the mating season, which is spring. 

Identifying white spiders can be a bit tricky. The markings on their bodies aren’t as prominent as spiders’ belonging to darker colors.

Where Do White Spiders Hide In The House?

Like all spiders in the house, white spiders look for cluttered dark areas where there’s less to no human footfall.

So, places like attic, basement, storage rooms, and even cluttered storage sections in places like bedroom and kitchen can be hiding places of spiders.

Spiders are carnivores. So, they’ll hunt other insects inside the house to eat.

Some of the white spiders in the house can spin webs. But most of the white or pale spiders in the house don’t. 

They’d rather hide in the cracks and crevices patiently waiting for a crawling insect or fly to eat. 

So, finding them can be tricky till they show up. You can also find them while you’re cleaning your home. 

Types of White Spiders In The House

Out of 3500 spider species in the United States, many are white spider species.

Only a few of them can enter homes because they live in vicinity such as in our backyards and garden.

White Ghost Spiders

White Ghost Spider

Ghost spiders belong Anyphaenidae family of spiders. The family of these spiders are pale with translucent bodies.

There are two dominant colors in ghost spiders – pale yellow and pale white.

They’ve got elongated bodies and long legs with thin hairy bristles. Those bristles help them to climb on vertical surfaces.

Ghost spiders are fast runners. They’ll run at a brisk pace on the floor.

Ghost spiders hide in the vegetation or in the flower petals, waiting patiently for a fly or bug to catch.

These spiders don’t spin a web to trap their preys.

But they do weave a tunnel-like tubular silk retreat underneath rocks, between woodpiles, and inside curled leaves.

Ghost spiders are immensely beneficial for your garden. They hunt down most garden pests that pose a threat to your plants.

Dense vegetation along the home’s perimeter and windows can make the ghost spiders sneak inside the house through the gaps and cracks.

Like all spiders, the ghost spiders will also hide in the tiny holes, between wall cracks, and in the cluttered places of your house.

They don’t bite unless you try to handle them. Their bites are harmless and cause a minor skin irritation.

White Crab Spiders

White Crab Spider

White crab spiders belong to the Misumenoides family of spiders.

The spiders, including the white crab spiders, belonging to this family have a crab like appearance.

Their two front legs are longer than the hind legs. That gives them a crab like appearance.

White crab spiders are ambush predators. They will hide in the flower petals and in the leaves waiting for their prey.

Like all the white spiders in the list, the white crab spiders are outdoor spiders.

But they can move inside the house by accidentally sneaking in through the vents, gaps, and open windows.

You can accidentally bring the white crab spiders inside by brining in potted plants with white crab spiders hiding in them.

Inside the house, white crab spiders will look for secluded and cluttered places like attic, basement, and storage rooms to hide.

They can even get inside shoe boxes, closets, wardrobes, dresser drawers, and in the storage section underneath beds.

White crab spiders are harmless and they’re not known to bite humans unless they get pressed against the human skin.

White Jumping Spiders

White Jumping Spider

Jumping spiders are mostly black or brown. However, a few jumping spiders can be white.

The reason that some jumping spiders are white is as same as why people have different eye colors.

The whiteness in the jumping spiders is because of the genetic variation within the species.

Jumping spiders belong to the Salticidae family. Spiders in these family are strong jumpers.

They jump and pounce on the prey to hunt them. Unlike the common house spiders, the jumping spiders don’t spin webs.

Outdoors, jumping spiders will live in the dense shrubs, leaf litter, underneath the rocks and woodpiles.

However, these spiders are quite adept to live inside human homes.

They’ll not only sneak inside the cluttered places inside your house, but also inside shoes, drawers, and underneath furniture.

Jumping spiders, including the white ones, are harmless.

To many people, white jumping spiders look adorable. And many reptile enthusiasts also keep them as pets.

White Sac Spiders

White Sac Spider

Like the yellow sac spiders, the white sac spider will live in the wood piles, leaf litter, and underneath rocks and stones in the outdoors.

However, these spiders can also hide inside the gaps in sheds, boards, and walls.

The gaps in the window sills are one of the most entry points for the white sac spider to sneak inside the house.

But they can move into your home when the weather outdoors becomes too extreme for them.

The most common time of the year when the white sac spider get inside the house is during the late fall when the temperature starts to fall.

These spiders will sneak inside the house looking for a warm place to hide.

The white sac spiders have long frontal legs. But the hind legs aren’t as short as the hind legs of a crab spider.

So, these spiders don’t give a crab-like appearance.

The most distinctive feature in the white sac spider is a blurry mark on their abdomen.

White Sac spiders got their names from their habit of build silken sacs or tubular webs inside leaves and holes.

But those sacs are a retreat for them. They don’t use it to hunt their preys.

White sac spiders don’t build their sacs inside the house.

Instead, they sneak inside the wall voids in places like your attic and basement. The crevices on the walls and ceilings are also their hiding places.

Most people think that white sac spiders and yellow sac spiders are the same because of the similarities in looks and behavior.

However, both are distinct species.

White sac spiders (Cheiracanthium inclusum) are white and small, growing between 4-8 mm in size. T

The white sac spiders aren’t aggressive. And they can also be pale yellow.

The yellow sac spider (Cheiracanthium mildei) is more yellow in color. It’s size is similar to the white sac spider’s size.

But the yellow sac spider is more aggressive than the white sac spider.

So, many people can confuse these spiders with the yellow sac spider because of similarity in size and shape.

But the yellow sac spider is more aggressive than the white sac spider.

The yellow sac spiders account for more human bites than any other spider species in the United States. This spider bites people while they’re working in their garden. 

They camouflage well in plants and dense vegetation so they can be difficult to spot.  

Yellow sac spiders carry venom. So, their bites are painful. Symptoms of bites include itching, swelling, and pain on the bite wound.

White Wolf Spiders

White wolf spider - White Spiders In The House

Wolf spiders are generally tan with markings on their abdomens. But some wolf spiders can be white because of genetic variations (albinism) or because of the impact of their habitat on them.

White wolf spiders easily blend with their environment that gives them an advantage for hunting their prey. 

Wolf spiders can enter homes and they do it often during the peak of the summer, rain, or winter to hide in a safe place and to hunt other insects in the house. 

Basements, garage, and any cluttered area can be their hiding place. 

Wolf spiders don’t spin webs to hunt their prey. So, finding them can be tricky because they will hide in the clutter or in the crevices of the walls. 

They’re fast crawlers with spines on their legs that help them to get a proper grip while crawling or while hunting their prey. 

Wolf spiders carry venom which they use to subdue their prey. However, they can also use it to bite humans. 

But bites are generally rare unless you try to handle them.

Candy-Striped Spiders

Candy Striped Spider

In my study of arachnology, it’s hard to come across a spider species that comes in kaleidoscope of colors like the candy stripped spiders.

These spiders come in various colors including pale light green, appearing as white, but with stripes on their abdomen.  

Candy stripped spiders are common in the woodlands, garden, grasslands, forests, and meadows of United States and Europe.

These spiders spin silk webs amidst the layer of vegetation to capture their prey. 

Occasionally they enter homes, not with malevolence, but driven by the pursuit of finding prey or seeking refuge from inclement weather.

They pose little to no threat to humans. However, bites do occur if they perceive you as a threat while you try to handle them or if they get inadvertently pressed against your skin. 

The bites are harmless. But pain, redness on the skin, and itching can occur on the bite wound.

White Cobweb Spider

White Cobweb Spider

If you’re noticing tiny white round spiders in the house, especially near the windows, then it’s most probably going to be the white cobweb spider.

The white cobweb spider is often confused with the American house spider. Though both spiders sneak inside homes, they’re totally different species.

The white cobweb spider (Steatoda albomaculata) belongs to the Lycosidae family. It’s creamy white, round-bodied.

This tiny white spider grows between 1/8 – 1/4 inches in size. Some white cobweb spiders can have a dark zig-zag pattern on their abdomen or on their legs.

White cobweb spiders are common in the dry regions.

Outdoors, these spiders will live in protected areas such as underneath rocks and inside the crevices of tree trunks and branches.

Of all the spiders in the list, the white cobweb spiders are most likely to live inside human homes.

They’ll sneak inside homes through the small cracks or openings in windows, doors, and walls.

White cobweb spiders are so common inside homes that they’re often referred as the house spider.

The places inside the house where they hide, and spin webs, are also the same.

Both the American house spiders and the white cobweb spider will hide in places like attics, storage rooms, and basements.

And they’ll spin web in the corner of the ceilings and walls.

The American house spider is the most common house spider species across North America. But they’re not white.

The house spiders are light brown or gray and smaller than the white cobweb spider. Their size is between 5-9 mm.

Both spiders are harmless and rarely bite humans. If they bite, it only results into minor skin irritation and itching.

White Cellar Spider

White Cellar Spider

Another common white spider in the house is the white cellar spider.

As their name suggests, these spiders hide in the dark and damp areas of the house like attics, bathrooms, and cellars.

White cellar spiders are pale yellow or grayish white and slender. They grow between 3/20 – 1/5 inches in size.

They’ve got an elongated body shape, with a small cephalothorax (head and thorax), and a round prominent abdomen.

The legs of these spiders are long, growing up to 10 mm in size. That’s why they’re also referred to as daddy long legs.

White cellar spiders build messy tangled webs on the corners of their hiding places to catch flies and mosquitoes.

White cellar spiders are not at all aggressive. They prefer to escape rather than bite if you disturb them.

Using a vacuum cleaner to scoop off these spiders and their webs is the best way to eliminate them.

White Goldenrod Crab Spiders

White Golden Rod Spider

White golden rod spiders are common garden spiders. These spiders are also known as the “flower spiders” because they primarily hide in the flowers to catch bees and wasps.

White golden rod spiders have a bulbous abdomen that gives them a round look. They grow between 6-10 mm in size.

They’ve got long, slender legs that help them to navigate from one flower to another and to catch their preys.

White golden spiders rarely enter homes.

But you can bring these spiders inside if you bring any flower potted plants with a golden rod spider hiding in it.

There have been instances when golden rod spiders popped out of nowhere in the indoor flower plants when the flower plant is being watered.

White golden rod spiders are beneficial spiders for your yard and garden. They keep the garden pests population under control by hunting and eating them.

These spiders rarely bite humans. If they’re inside the house, they desperately try to get outside of the house because your home isn’t an ideal habitat for them.

How To Prevent White Spiders From Entering The House?

Sealing the holes and cracks on the walls, doorways, and window sills is the best way to prevent spiders from entering.

As all of these spiders inhabit outdoors, so, keeping your outdoor area clean will remove their hiding places.

Remove the organic debris and wood piles where these spiders hide in the outdoors.

Declutter and clean your attic, bathroom, basement, storage room, garage, and kitchen.

Spiders hide in the cluttered places that are dirty.

So, remove unnecessary items from these places, especially useless cardboard boxes, to deny spiders the hiding place they need.

Ensure that are no bugs and pests in your home. The presence of insects inside the house draw spiders because spiders hunt and eat them.  

You can also keep sticky spider traps at their hiding places to lure the spiders out and entrap them.

Most of these white spiders in the list are harmless. But they can bite.

So, take appropriate precautions while you’re engaged in the above processes. Wear shoes, trousers, and gloves while cleaning those places to reduce the risk of spider bites.

Conclusion

 White spiders in the house are because of the same reasons for spiders belonging to any other species. 

The search for safe hiding place and potential preys in the house draw these spiders indoors.

These spiders, like most spiders in the house, are harmless unless you try to handle them or they make accidental contact with your skin. 

Sometimes hiring a pest controller is the best way to deal with them because these spiders will certainly lay eggs in the house. It can lead to an infestation. 

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