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Venomous Spiders in U.S.: Mouse, Wolf & Black House

Whether you’re playing in the backyard or cleaning out a dusty basement, you never know when you’ll encounter a deadly or dangerous spider. Some species have a reputation of aggressively attacking a victim, while others only react it they are startled or feel threatened. In this article, you will learn more about the mouse, wolf, and black house spider.

Mouse Spider

The venomous mouse spider is known for delivering a painful bite that is known to cause severe illness with the creature being especially a threat to young children. It’s not normal for a mouse spider to be aggressive, but the male will bite when provoked and should command caution from humans. With large hard fangs, the spider can penetrate the skin with a deep painful bite. It is suggested to seek first aid and medical attention as soon as possible after experiencing a mouse spider bite.

The mouse spider possesses a medium to large size of up to 1 and 1/2 inches in body length. You can identify the male spider by its bright red head and elongated fangs, while the female is typically larger and fatter with all black coloring. Mouse spiders live on the ground and construct burrows that reach more than 3 feet deep. During the day, the male often roams about open grounds in search for a female mate. They tend to come out the most right after it has been raining.

Wolf Spider

Although the wolf spider is non-aggressive by nature, it still possesses a venomous bite that often needs first aid or medical attention. The spider is especially threatening to young children and the elderly. When the spider is provoked or disturbed, it will bite freely. Some have described the bite as being very painful. An interesting fact about the spider is that after the eggs of the female have hatched, the young are carried on her back.

The wolf spider reaches a body length of ½ inch to more than 1 inch and is identified by its mottled gray to brown color. The insect also has a distinctive marking on its back that is described as a Union Jack impression. The spider enjoys living on the ground , creating a burrow retreat. Commonly found close to homes, the spider also builds a silk lined burrow typically in garden regions. Sometimes, leaf and grass litter get caught around the rim of the burrow, which further conceals the location of their burrow.

Black House Spider

While the bite of a black house spider is poisonous, it is not lethal to humans. Not all people will experience the same symptoms after this type of spider bites them. Black house spiders are identified by their dark brown to black velvet textured appearance. They reach a body length of around ½ inch. Symptoms of a black house spider bite include severe pain around the bite, heavy sweating, muscular pains, vomiting, headaches and giddiness. It is suggested to find a first aid kit or seek medical attention as soon as possible.

The black house spider tends to live in dry habitats in isolated locations , building a web that looks ‘lacy’ and disheveled. You should keep in mind that electric lights attract the kind of prey that black house spiders eat, such as moths, flies, mosquitoes and other insects. You will most likely find the spiders around your home in window framing, under eaves, gutters, in the brickwork, and toilets. Outside, the spiders tend to dwell in rocks and bark.