Idiots Guide: Arachnophobia – Deadliest Spiders on Earth

They’re creepy and often mistaken for insects although they are actually ‘Arachnids’. They spin webs to catch prey and some of the more gnarly species sting, bite and otherwise disperse painful venom into their prey and human beings alike. Their physiology and appearance makes them largely unappealing at best and horribly feared at worst. The fact that a majority of spider species are benign in terms of danger doesn’t seem to make a dent in human beings fear of them. Idiots Guide presents a look at some of the most dangerous spider species on planet earth. The few that are truly dangerous and provide the entire species with the sinister reputation they’ve been painted with.


#10. Six-Eyed Sand Spider  /  Main Habitat:  Africa, South America, Deserts 

The Six-Eyed Sand Spider

This spider is sometimes known as the ‘six-eyed crab spider’. The good news is that instances of stings/bites on humans are very rare.

#9. Yellow Sac Spider  /  Main Habitat: United States, Mexico, South America, Indoors

Yellow Sac Spider

Good idea to avoid contact with this spider as it’s venom is full of  ‘cytotoxin’ meaning that it destroys cell walls and produces necrotizing lesions (dying skin).

#8. Brazilian Wandering Spider  / Main Habitat: Central & South America

Brazilian Wandering Spiders

In 2010 the Guinness World Records listed the Brazilian Wandering Spider as the world’s most venomous spider. So getting bit isn’t all good, actually it’s pretty bad.

#7. Brown Recluse Spider  / Main Habitat: United States (West & South) 

Brown Recluse Spider

The Brown Recluse is definitely one of the most dangerous spiders in the United States today. It also has venom loaded with ‘cytotoxin’ which destroys blood vessels around the bite, usually causing an ugly skin ulcer and certain pain. Trust me, I know first hand.

#6. Red Widow Spider  / Main Habitat: United States ( Central, Southern Florida)

Red Widow Spider

The Red Widow is one of the ‘Widow’ family and is not any more fun than the others. It is not known to be overly aggressive towards humans, however if you are unlucky enough to come across one who is protecting it’s eggs….well then all bets are off. Stay clear.

#5. Brown Widow Spider / Main Habitat: U.S., Japan, South Africa, Australia

Brown Widow Spider 2

Problem number one is that this species likes to create it’s living space inside of buildings, inside old tires and in and around sitting cars. Problem number two is that it’s venom is twice as powerful as that of it’s cousin, the ‘Black Widow’.

#4. Black Widow Spider / Main Habitat: North America, South America, West Indies

Black Widow Spider

The Black Widow is the most common of the ‘Widow’ family wandering around the earth. As you might be aware, finding a male Widow can be difficult as the female has a habit of disposing of the male after sex. By ‘disposing’, I mean kill. Dead. No more daddy.

#3. Funnel-Web Spider / Main Habitat: North & South America, Australia

Funnel-web Spiders

These spiders are feared throughout the world largely because of their bulky, menacing appearance and specifically because of their awfully painful bite. Yikes.

#2. Redback Spider / Habitat:  Australia, New Zealand, Belgium, Japan 


Australian Redback

Guess what? The ‘Redback Spider’ is another cousin of the ‘Widow’ family. They are known to inhabit the shoes and clothes of unsuspecting humans. The problem is that their venom is a serious mixture of neurotoxins aka ‘alpha-latrotoxins’. It produces excruciating pain, sweating, irregular heartbeat, swollen lymph nodes and it basically really sucks to get bitten. Context? The venom from this spider is 15 times more powerful than that of a rattlesnake. Capiche?

#1. Wolf Spider / Main Habitat: Throughout the Earth 

Wolf spider

The ‘Wolf Spider’ moves with lightning speed and pounces on it’s victims with alarming quickness, you don’t want to be the victim. In reality this spiders large and imposing looking fangs are more dangerous looking than actually dangerous, as in life or death. You won’t die, you’ll just wish that you were dead. It’s still quite venous and you really don’t want to get bit by one. Especially a mother protecting it’s eggs.