These spiders are usually shy but if they feel threatened they can be deadly. In rare cases, their bites can result in death. They are found in Central & South US.
Surely they are very venomous spiders but they are not deadly spiders out there. There bite can however cause redness and swelling round area and also pain.
Female black widow spiders are lethal to humans. Their venom is 15 times stronger than rattlesnakes. They are usually found in Southern Canada and Northeastern US.
They are usually found in Central & South America. Its bite is too much harmful and can cause swelling, loss of muscle control, and even prolonged erections.
They are the most biting spiders humans than other spiders. They are found all over the globe. It's bite can be painful and can cause swelling & redness around the area.
It looks kind of a black widow spider but its marking is orange and they have a tan or brown body. They are less toxic than black widow spiders but still are deadly to humans.
They are mostly found in central and south Florida. Female red widow spiders are more deadly. Their venom is lethal as black and brown widow spiders.
The male funnel-web spiders are very deadly. They are found in New Zealand, Europe and Chile. Its bite can cause increased heart rate and difficulty breathing.