Brown Widow Spider: Characteristics and Extermination

The Brown Widow spider, scientifically known as Latrodectus geometricus, is a venomous spider species that has a widespread distribution across different regions of the world. In the United States, it can be found in several states, particularly in the southern and southeastern regions. States such as Florida, Georgia, Texas, Louisiana, Alabama, Mississippi, and South Carolina are known to have populations of Brown Widow spiders.



Identifying Brown Widow spiders is indeed crucial for effective management and understanding their distinctive characteristics is essential. Here is some additional factual information about Brown Widow spiders:

Size: Adult female Brown Widow spiders typically measure between 8 to 14 mm in body length, making them slightly larger than their male counterparts. Females are also more venomous compared to males, although their bites are still considered relatively rare and less severe than those of some other widow spider species.

Coloration: Brown Widow spiders exhibit a range of color variations within their species. While their bodies are generally light to dark brown, the shade can vary, and some individuals may even appear almost black. One of the key identifying features is the presence of an orange or reddish hourglass-shaped mark on the underside of the abdomen, which serves as a distinctive characteristic of the species.

Web Structure: Brown Widow spiders construct irregular, tangled webs that are typically found in outdoor areas. They prefer to build their webs in locations such as shrubs, trees, under eaves, in tall grass, and even in abandoned structures. These webs are not as organized or symmetrical as those of some other spider species, and the brown widow’s web may appear messy and haphazard.

Egg Sacs: Another notable characteristic of Brown Widow spiders is their unique egg sacs. The egg sacs are round or oval-shaped and are typically white or cream in color. They are often found attached to the spider’s web or hidden within crevices, providing a safe environment for the eggs to develop.


The Brown Widow spider is a venomous spider species that primarily exhibits nocturnal behavior. These spiders prefer to inhabit secluded areas where they can build their webs and retreat during the day. They are often found in outdoor spaces such as gardens, sheds, garages, and other structures that provide suitable hiding spots.

Brown Widow spiders are known for their web-building abilities. They construct irregular, tangled webs, typically positioned low to the ground. These webs serve as both a trap for their prey and a retreat for the spiders. The silk retreats within the web offer a safe place for the spiders to rest and hide when not actively hunting.

While Brown Widow spiders possess venom, they are generally non-aggressive and prefer to avoid confrontation. They only bite when they feel threatened or disturbed, such as when accidentally touched or squeezed. It’s important to exercise caution and avoid provoking these spiders to minimize the risk of a bite.

The venom of Brown Widow spiders is considered to be less potent compared to other widow spider species, such as the Black Widow. However, individual reactions to their bites can vary, and some people may experience symptoms such as pain, swelling, and mild systemic effects. If bitten, it is advisable to seek medical attention for appropriate evaluation and treatment.


Extermination Techniques

If Brown Widow spider infestations are a concern, the following extermination techniques can be employed:

Professional Intervention:

Safety Precautions: Due to the venomous nature of Brown Widow spiders, it is recommended to seek professional pest control services for their extermination. Trained experts will take appropriate safety measures to handle the situation.

Treatment Methods: Pest control professionals will conduct a thorough assessment, develop a customized treatment plan, and apply targeted insecticides to effectively eliminate Brown Widow spiders.

Habitat Modification:

Remove Debris: Clear clutter, leaf piles, and debris from outdoor areas to eliminate potential hiding spots for Brown Widow spiders.

Seal Entry Points: Seal cracks, gaps, and openings in walls, windows, and doors to prevent spider entry into buildings.


Contact our pest control experts to ensure the safe removal of Brown Widow spiders and create a secure environment.