Which Spiders Have Necrotic Venom?
WouterThere are many types of spiders that bite humans, but only a handful can actually cause harm. These include the southern black widow, the common house spider, and the brown recluse.
The Southern Black Widow produces neurotoxic venom that can lead to muscle spasms, airways constricting, and gangrenous infections. It is one of the most dangerous species of spider in the world.
Occasionally, a spider may be able to produce necrotic venom. These venoms can break down cells, causing tissue death. They can also cause ulcers. The venom can be toxic to the nervous system, and it can also cause vomiting. Some spiders even inject venom into their prey.
A recent study examined the case of a 20-year-old resident of New York state who was bitten by a wolf spider. The patient had redness and swelling at the site of the bite. A rash, a deep open sore, and a blister appeared. After treatment, all the symptoms disappeared.
Another spider that can cause necrosis is the hobo spider. It’s a medium-sized spider with a gray and brown body and spindly legs. It is listed as one of the three venomous spiders in the U.S. by the Centers for Disease Control and Prevention.
In contrast to the black widow and yellow sac spiders, a white-tailed spider does not produce necrotic venom. The white-tailed spider is common in urban areas of Australia. It is named for the off-white tip at the end of its abdomen.
