14 biting spiders that live in the UK you should be aware of

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This may not come as a surprise, as the same happens every year, but others may be blissfully unaware.

It’s spider mating season, spider home invasion time – whatever you want to call it. In other words – it's an arachnophobe’s worst nightmare.

Every autumn, usually in September and October, the eight-legged creatures leave their webs in favour of the dry cosy conditions of Brit homes.

This is the perfect place for them to mate.

There are more than 650 different species of spiders in the UK, but fortunately only a handful of them can cause any harm to humans. But it's still in important to be aware of them in case you come across them.

  • 10 spiders you're likely to find in UK homes and which are venomous – or deadly

Here are the spiders you may spot around your house

1. False Widow

Are they dangerous? They are the most poisonous spider in the UK.

A bite can cause pain, swelling, numbness, discomfort, burning, chest pain and nausea.

There have been no reported cases of deaths in the UK, but severe allergic reactions can lead to hospitalisation.

How to spot them: They are about 10mm, dark brown and have a bulbous body.

2. The Tube Web Spider

Are they dangerous? They can be quite aggressive, and are more likely to bite than other species.

A bite can be painful, similar to a bee sting, but they aren’t deadly.

May cause discomfort for around 5-6 hours.

How to spot them: They produce a tube-shaped webb, and can grow to around 15 to 20mm.

The black spider is one of the biggest in Britain.

3. The Woodlouse Spider

Are they dangerous? You have to come in very close contact with one for them to want to bite you.

Bites are not dangerous but can cause itchiness.

How to spot them: The spider is colourful, has three pairs of eyes, a dark red body and yellow abdomen.

Males can grow to 15mm, but females can be twice that size.

4. The Cardinal Spider

Are they dangerous? Although technically venomous, its bites are rare and quite painless.

How to spot them: One of the largest spiders in the UK, it can measure up to 12cm.

5. The Money Spider

Are they dangerous? Their bites rarely penetrate human skin, but they rather feast on insects.

How to spot them: They are the smallest spider species in the UK, measuring less than 5mm.

They usually have grey or black bodies, and make a small web sheet which they position themselves under.

6. The Walnut Orb-Weaver Spider

Are they dangerous? They are one of the most venomous spiders in the UK, just behind the false widow.

They aren’t deadly, but bites are very unpleasant and can cause burning, swelling and numbness.

How to spot them: Males can reach 8mm, and females can be double that size.

7. The Black Lace-Weaver

Are they dangerous? Black Lace Weaver spiders are quite venomous.

A bite will cause pain, around three days of swelling and nausea.

How to spot them: They measure around 11 to 15mm, and are almost black.

8. The Wasp Spider

Are they dangerous? They can be quite angry, but their bite isn’t fatal.

But curiously, the pain from the bite can spread to your groin.

How to spot them: The Wasp spider is black, yellow and white with a stripe pattern.

Females can reach 15mm, and males grow to 5mm. 9.

9. The Cross Spider

Are they dangerous? They only bite when threatened, but their bites will cause pain and inflammation for around two to three days.

How to spot them: Males can range from 5-12mm, and the females can be a bit bigger, at 6-20mm.

10. The Cupboard Spider

Are they dangerous? The cupboard spider can bite, but without long-lasting effects.

Symptoms may last for a couple of days, and include blistering, muscle spasms, pain or fever.

How to spot them: The cupboard spider is often mistaken for a false widow due to its shape and colour.

They generally grow to approximately 10mm, and very in colour from brown, to black and purple.

11. The Giant House Spider

Are they dangerous? They do possess a potent venom, but aren’t usually a threat to humans.

How to spot them: Its massive body can reach 1.9cm, and has a 4.5cm leg span. It’s one of the fastest spiders in the UK, and can run up to half a metre per second.

The Giant House spider is brown, and usually measures 120mm.

12. Daddy Long Legs Spider / Cellar Spider

Are they dangerous? Urban legend says that Daddy Long Legs are deadly, and that their venom could kill a human if their fangs could pierce skin.

But research has found it is highly toxic to insects, not humans.

Daddy Long Legs venom might deliver a brief burning sensation, if anything at all.

How to spot them: They can be spotted by its tiny grey body and long, thin-legged appearance.

Its body usually measures less than 10mm, but the legs can reach 7cm.

13. The Lace-Webbed Spider

Are they dangerous? Bites can be relatively painful, and symptoms include localised swelling.

This may last for some hours.

How to spot them: The lace webbed spider is brown with yellow marks, and grows to around 20mm.

14. The Zebra Back Spider / Zebra jumping spider

Are they dangerous? They do bite, but their venom isn’t considered medically threatening.

How to spot them: They can easily be spotted by their black and white marks over its back and legs.

It also has eight eyes and is known for its jerky “stop, start” motion.

  • Spiders

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