Home  /  Other Pests  /  Spiders  /  Poisonous Spiders and Black Widow Spiders 

Poisonous Spiders and Black Widow Spiders

Entomologists say that almost all spiders are poisonous. However, there are some spiders that are notorious for the toxicity of their venom. These species include the brown recluse, the black widow, the yellow or gold sac spider, the hobo spider and the red-legged spider. Spiders are capable of administering strong bites with their fangs, which are designed to catch prey and devour food. Fangs are also used in self-defense, at which time poisonous spiders inject venom into the flesh of the victim.

The black widow spider delivers the most toxic spider bite in the United States. Black widows are most prevalent in warm, southern areas, although they have been identified as far north as Canada. The black widow spider's venom is a neurotoxin. It is said to be 15 times more poisonous than that of the rattlesnake.

Brown recluse spiders administer venom that can cause severe tissue damage and sometimes death. Also known as the violin or fiddle-back spider, the brown recluse is easily identified by a violin-shaped design on its back. Like black widows, brown recluse spiders tend to dwell in dark, remote locations.

In order to avoid poisonous spider bites, it is advisable that caution be used when cleaning or even reaching into dark, infrequently visited places. Gloves and good lighting are recommended. Sealing cracks in pipes and regularly cleaning dark, dry areas may prevent the entrance of poisonous spiders.

If you suspect that a poisonous spider has bitten you, administer basic first aid to the wound. Place ice and alcohol directly at the bite site and take something to alleviate aches. Venom can cause muscle cramping, nausea and difficulty breathing. In the event of severe reactions, victims should immediately seek medical attention. Try to take the spider along to the medical facility for proper identification.

Black Widow Spider Facts

Black Widow Spiders' Activity During Cold Weather

How the Black Widow Spider Received its Name

Extinction of Black Widow Spiders

Black Widow Spider Web

Black Widow Spiders Food

Characteristics of a Black Widow Spider

Black Widow Spider Map