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Black Widow Spider

Description

Black Widow Spider

Pest Stats

Color

Black, with characteristic reddish or yellow “hourglass” on back

Legs

8

Shape

Round

Size

1 ½ – 1 3/8 inches long

Antennae

No

Region

Found throughout U.S.

Habits

Black widows can survive low temperatures but are most active when the temperature is 70 degrees F or higher. Black widow spiders spin webs that are an irregular mass of fibers with a small main area. This central area is where the spider waits for prey to get tangled in the web. Their prey includes flies, mosquitos, grasshoppers, beetles, and caterpillars. These webs are constructed at night near ground level. Once complete, these spiders hang upside-down in their webs. After mating, the female is known to eat the male as a source of protein to benefit her offspring. The female creates papery egg sacs that contain between 200-900 eggs each. The eggs hatch after about 30 days.

Habitat

Black widows can survive low temperatures but are most active when the temperature is 70 degrees F or higher. Black widow spiders spin webs that are an irregular mass of fibers with a small main area. This central area is where the spider waits for prey to get tangled in the web. Their prey includes flies, mosquitos, grasshoppers, beetles, and caterpillars. These webs are constructed at night near ground level. Once complete, these spiders hang upside-down in their webs. After mating, the female is known to eat the male as a source of protein to benefit her offspring. The female creates papery egg sacs that contain between 200-900 eggs each. The eggs hatch after about 30 days.

Threats

The black widow spider typically only bites in self-defense or after laying, and when guarding eggs. Symptoms of a black widow spider bite include fever, increased blood pressure, sweating and nausea. Fatalities are unlikely, if proper medical treatment is sought in a timely manner. If you notice black widows or signs of infestation, contact a professional immediately for a proper course of black widow spider control.

Black Widow Spider Prevention

If you suspect a black widow spider infestation, A-1 Bonded Termite, Inc. for a free inspection* immediately. This is the safest and most effective way to get rid of black widow spiders. Your inspector will make recommendations to eliminate the infestation and make suggestions on how to correct conditions that may be conducive to re-infestations.

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