Evo Pest controls spiders and these are the most dangerous spiders we experience here in our house and businesses.


Also known as a Button Spider, the Black Widow is probably one of the best known and most widely distributed spiders in South Africa. 

Distribution & habitat: Button spiders are found all over South Africa, and they usually reside in quiet, dark places. While they rarely venture into houses, they do tend to lurk in less-used domestic spaces like garages and sheds. 

Identification: They have a trademark red hourglass on a very round, black abdomen.

Kind of venom: Button spiders have neurotoxic venom, which means that it attacks the central nervous system. Only female spiders have fangs large enough to pierce human skin. Symptoms include severe muscle pain, abdominal cramps, hyperhidrosis, tachycardia, and muscle spasms and usually last for 3-7 days, but may persist for several weeks.

What to do if bitten: A person who has been bitten by a black button spider needs to be hospitalised and treated with anti-venom.

Violin Spider

Violin spider bites are extremely rare and mostly only occur at night while the victim is sleeping. 

Distribution & habitat: They occur right across South Africa. 

Identification: These spiders are brownish with dark markings on their bodies, as well as a characteristic violin-shape on the front part

Kind of venom: They have cytotoxic venom, which means that it destroys tissue. Bites are small and painless, but after a few hours the site swells up and becomes discoloured, which is followed by blistering and peeling of the skin – leaving an open wound.

What to do if bitten: It’s hard to detect a violin spider bite at first, until the skin starts rotting away. There is no anti-venom and the best way to treat the wound is to have the dead flesh surgically removed. Yup, it’s kind of gross. 

Sac Spider

These are considered to be the most dangerous spiders in South Africa. They are particularly aggressive and implicated in 70-75% of reported spider bites. 

Distribution & Habitat: Sac spiders are found right across the country and are known to make themselves very comfortable in homes. As with Violin spiders, most bites occur at night while the victim is sleeping. 

Identification: They’re a pale yellow colour with a large abdomen and a black head. 

Kind of venom: Sac spiders have cytotoxic venom, which destroys tissue. Initially bites are small and painless, however after a few days it is swollen and painful and eventually forms a large lesion. There is no anti-venom for sac spider bites, but antibiotics are needed to treat the infected tissue. 

What to do if bitten: Get to a doctor as soon as possible if you suspect you’ve been bitten by a Sac spider. The longer you wait to be treated, the more infected the flesh will get and the longer it will take to heal. Plastic surgery is sometimes needed to remove the damaged tissue. 

102 Reddersburg Street, Rooihuiskraal North,  Centurion, Pretoria, 0157


060 710 6883

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