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Drawing of a Black Widow from above - keep these dangerous spiders out of your household with General Pest Control in Middleburg Heights

Black Widow Spider

Actual Size: ½ to 1 ½”

Characteristics: Shiny black or brown body. Females have red spots or a red hourglass-shaped marking on the underside of the abdomen.

Legs: 8

Habitat: Constructs irregular, tangled webs in calm, secluded areas. These webs are commonly located in rock piles, block walls, sprinkler valve boxes, sheds, garages, and underneath patio furniture.

Habits:

  • Constructs messy, unpredictable, and irregularly shaped webs.
  • Female black widows produce egg sacs containing 200-900 eggs. 
  • Non-aggressive and usually only bites in self-defense or when disturbed.
  • Bites are painful and may cause symptoms such as muscle cramps, abdominal pain, sweating, and nausea.


Black Widow Spiders in Cleveland

Black widow spiders are renowned worldwide for their ability to cause pain and suffering in humans. Their color can range in color from dark brown to black, with only the females sporting the characteristic hourglass or spots on their abdomen. Man-made clutter provides an optimal habitat for black widows, making them prevalent around homes, barns, outbuildings, and rock walls. Despite being North America’s most venomous spider, black widow bites are rarely fatal but can be extremely painful. Prompt medical attention is recommended to alleviate symptoms and prevent complications from a bite.

Black Widow Habitat

Black widow spiders are usually found outdoors, nesting in quiet, dark, undisturbed ground-level areas. They build irregular, erratic webs and live in crevices or recesses within rock piles, block walls, sprinkler valve boxes, and beneath patio furniture. These spiders are also frequently spotted in garages, outdoor sheds, and on playground equipment. Though they prefer outdoor environments, black widows often enter homes or structures accidentally via boxes or furniture. An obvious sign of a black widow infestation is the presence of messy, irregular webs in and around the home. To prevent infestations, it’s crucial to regularly clean and declutter potential hiding spots.

Black Widow Behaviors, Threats, or Dangers

The black widow spider poses significant threats due to its potent venom, which contains neurotoxins that can cause severe pain, muscle cramps, and other systemic symptoms. While fatalities are rare, bites from a black widow can lead to intense discomfort and require medical attention, particularly for vulnerable individuals such as children, the elderly, or those with compromised immune systems. Black widow spiders are typically non-aggressive and bite only in self-defense, often when accidentally disturbed. It is advisable to take preventive measures, such as wearing gloves when working in areas where they may reside. Symptoms from a black widow bite will manifest within 20 minutes to an hour, including stiffness, severe pain at the bite site, nausea, chills, and fever. Immediate medical attention is required if a bite is suspected.

If you are dealing with a black widow problem, always contact your local spider exterminators.