Arachnophobia – What Spiders Are Harmless to Humans?

Arachnophobia is one of the most common phobias in the world. The majority of spiders are harmless to humans, but there are some species that can cause medically serious bites.

Among the most dangerous spiders are Australian funnel-web spiders. They have venom that can kill. In the 1920s, they were responsible for several deaths in Sydney, Australia. Since then, scientists have found an antidote for the main toxin in their venom. However, it is effective only when given soon after a bite.

Another venomous spider is the brown recluse. It is known for its violin-shaped marking on its body. During the day, it hides in a sac. But at night, it builds a tent-like structure out of silk. When threatened, it may attack.

Other spiders that are considered venomous are the hourglass spiders, the false black widow, the black house spider, and the white-tailed spider. These are all commonly spotted in the home. Some of them are even misidentified as other kinds of spiders.

Usually, the venom of garden spiders is not toxic to humans. However, the Brazilian wandering spider has venom that is highly poisonous.

There are thousands of species of spiders in the world. Over 3000 species are identified in the U.S., Canada, and Australia. Spiders are also a key part of ecosystems. Many spiders are camouflaged on vegetation, which makes them difficult to spot.

Another venomous spider that is usually spotted in the home is the woodlouse. It has a brown, gray, or reddish-brown abdomen.