What Is a False Widow Spider and Why Should I Care?

False widow spiders have become increasingly common in the UK, sparking concern and confusion among homeowners. Often mistaken for the far more dangerous black widow, false widows are less harmful but can still cause alarm if found indoors.

This guide will help you on how to identify a false widow spider by covering their key characteristics such as size, color, and distinctive markings. We’ll also explore how to differentiate them from other common UK spiders, what steps to take if you find one, and how to prevent them from settling in your home.

By the end of this guide, you’ll be able to confidently spot a false widow spider and take appropriate actions to keep your home safe.

What are the Key Characteristics of a False Widow Spider?

What is the Size and Shape Of False Widow Spiders?

False widow spiders are medium-sized and can be identified by their robust, rounded bodies. Typically:

• Females: Measure between 8.5 to 14mm in body length.
• Males: Are slightly smaller.
• Body Shape: They have a distinctive bulbous abdomen, making them easy to differentiate from other, more slender spiders.

What are The Color and Markings Of False Widow Spiders?

One of the most noticeable features of a false widow spider is its coloration. Key identifying characteristics include:

• Color: Dark brown or black with a glossy finish.
• Markings: Cream-colored patterns on the abdomen, often resembling a skull or other distinct shapes.

How is the Web Structure?

The webs of false widow spiders are another telltale sign. Unlike the organized, circular webs of orb-weavers:

• Structure: Their webs are tangled and messy.
• Location: Typically found in undisturbed corners like sheds, garages, and eaves.

How to Differentiate a False Widow from Other Common UK Spiders?

False Widow vs. Black Widow

• Danger Level: Black widows are much more dangerous and rare in the UK.
• Markings: Black widows have a red hourglass marking, while false widows do not.

False Widow vs. Common House Spider

• Color: House spiders are generally lighter in color.
• Body Structure: House spiders have longer, thinner legs compared to the robust false widow.

False Widow vs. Garden Spider

• Web Type: Garden spiders spin large, circular webs, unlike the tangled webs of false widows.
• Markings: Garden spiders often have distinct stripes or cross-shaped patterns.

What to Do If You Find a False Widow Spider?

How To Safely Identify and Handle False Widows?

If you find a spider that you suspect is a false widow:

• Observe Carefully: Avoid disturbing it and use a clear container if you need to capture it.
• Identify: Look for the distinctive markings, size, and shape before deciding on the next steps.

Should I Be Concerned About False Widow Bites?

While false widow bites are rare, they can cause symptoms similar to a wasp sting:

• Symptoms: Redness, swelling, and minor pain.
• Action: Clean the bite area and monitor for unusual symptoms; seek medical advice if needed.

How To Prevent False Widow Spiders in Your Home?

How To Reduce Spider-Friendly Environments?

To deter false widow spiders from making your home their own:

• Keep Your Home Tidy: Regularly clean and declutter areas like basements and garages.
• Seal Entry Points: Repair any cracks or gaps around windows, doors, and walls.

How to Use Natural Repellents?

For those who prefer not to use chemicals, try these natural options:

• Essential Oils: Spiders dislike strong scents like peppermint and tea tree oil.
• Vinegar: Wipe down surfaces with a vinegar solution to repel spiders.

Conclusion:

How To Stay Safe and Informed About False Widow Spiders?

Identifying a false widow spider is relatively simple once you know the key characteristics. By staying informed and taking preventive measures, you can reduce the likelihood of encountering these spiders in your home and handle them safely if you do.

Frequently Asked Questions (FAQs)

1. Are false widow spiders dangerous?

False widow spiders can bite, but their bites are generally mild, similar to a wasp sting. Severe reactions are rare.

2. How can I tell if a spider is a false widow?

Look for a dark, glossy body with a bulbous abdomen and cream-colored markings. Their tangled webs are also a key indicator.

3. What should I do if I find a false widow in my home?

Observe it carefully without disturbing it. Capture it in a clear container if necessary and identify it by its size, color, and markings. Release it outside or contact a professional if you’re unsure.