Lifestyle of the Brown Recluse Spider

The brown recluse spider (Loxosceles recluse) is a venomous spider native to the United States. It is also known as the fiddle back spider, brown fiddler, or violin spider because of the distinctive violin-shaped marking on its cephalothorax.

The brown recluse spider is a member of the family Sicariidae, which includes six genera and over 100 species. In this article, we will discuss the lifestyle of the brown recluse spider.

Habitat and Range

The brown recluse spider is found throughout the southern and central United States, from Florida to Nebraska and from Texas to Ohio. They prefer warm, dry climates and are often found in dark, sheltered areas such as attics, basements, closets, and crawl spaces. They also live in outdoor spaces such as woodpiles, sheds, and barns.


As their name suggests, brown recluse spiders are solitary creatures and tend to avoid human contact. They are nocturnal and are most active at night. During the day, they hide in dark, undisturbed areas such as cracks in walls, under furniture, and in cluttered storage areas.

The brown recluse spider is not an aggressive spider, and it will generally only bite when it feels threatened or provoked. The spider’s venom can cause necrosis, or tissue death, at the site of the bite, which can be a serious medical condition if left untreated.

Lifestyle of the Brown Recluse Spider

Feeding Habits

The brown recluse spider is a hunter and feeds on a variety of insects and other arthropods. They are particularly fond of crickets and cockroaches, but they will also eat other spiders, beetles, and moths. They are also known to scavenge for food and will feed on dead insects and other organic matter.


Brown recluse spiders reach sexual maturity at about one year of age. Mating typically occurs during the spring or summer months, and the female will lay her eggs in a silken sac. The sac may contain up to 50 eggs and is often hidden in a dark, sheltered area. The female will guard the sac until the eggs hatch, which takes about one month.

The hatchlings are small and white, and they molt several times before reaching adulthood. They typically reach adult size within one year, but some may take up to two years to mature.

Interaction with Humans

The brown recluse spider is known for its venomous bite, which can cause a range of symptoms, from mild irritation to severe pain and tissue damage. However, it is important to note that not all bites from the brown recluse spider result in serious symptoms. In fact, many bites go unnoticed or are mistaken for other insect bites or skin conditions.

If you suspect that you have been bitten by a brown recluse spider, it is important to seek medical attention immediately. Treatment for brown recluse spider bites typically involves pain management and wound care, and in severe cases, surgery may be necessary to remove the damaged tissue.


There are several steps that homeowners can take to reduce the risk of brown recluse spider infestations. These include:

  1. Sealing cracks and gaps in walls, floors, and foundations to prevent spiders from entering the home.
  2. Reducing clutter and removing potential hiding places such as piles of clothing, boxes, and newspapers.
  3. Regularly cleaning and vacuuming in areas where spiders are likely to hide, such as basements, attics, and closets.
  4. Using insecticides or natural remedies such as diatomaceous earth to kill spiders and prevent infestations.

Facts about the brown recluse spider:

  • The brown recluse spider is one of the few venomous spiders in the United States. While its venom can be dangerous, fatalities from brown recluse spider bites are rare.
  • The brown recluse spider is often mistaken for other spider species, including the wolf spider and the cellar spider.
  • The brown recluse spider’s venom contains a toxin called sphingomyelinase D, which can break down cell membranes and cause tissue damage.

Lifestyle of the Brown Recluse Spider

  • The brown recluse spider is sometimes used in medical research to study wound healing and tissue regeneration.
  • While the brown recluse spider is known for its distinctive violin-shaped marking, not all brown recluse spiders have this marking, and other spiders may have similar markings that can be confused with the brown recluse.
  • There are several other species of recluse spiders found in the United States, but the brown recluse spider is the most well-known and has the most potent venom.

In summary, the brown recluse spider is a venomous spider native to the United States. It is a solitary creature that prefers warm,

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