The Western Black Widow is found in the western part of the United States, as well as parts of Canada and Mexico. Habitat. The venom injected by the bite of these spiders contains the neurotoxin latrotoxin which causes the condition latrodectism, both named after the genus.

Inspect all the premises and find out where black widow spiders are hiding. A western black widow, Latrodectus Hesperus.

The black widow will feed mostly on insects such as flies but will also eat centipedes, millipedes and other spiders. They are present in every continent except Antarctica. The female black widow spider is considered the most venomous spider in North America, according to desertusa.com. The Southern black widow spider is found throughout the states in south east America from Florida right up to New York, and are also found more west towards Texas and Arizona where the black widow spider is said to run rampant.

The black widow spiders belong to the genus Latrodectus.
Wherever a food source of insects like crickets or roaches are there, most likely you will find black widow spiders.

Webs of black widow spiders can be built in and around piles and boxes of clutter.

Black Widow from Arizona - AZER 6070 is making her final run in a paint scheme reminiscent of Southern Pacific's "Black Widow" paint before heading to the paint shop and being transformed into the brown and orange of the Illinois Central. Phoenix Arizona physician directory -Spider bites in the US usually are harmless, and you can treat them at home, but a bite from a black widow or brown recluse spider can be dangerous, and needs treatment by a doctor. Step 2. Black Widow Spiders thrive in our Arizona desert climate. One of the few species harmful to people in North America, a black widow often features a red hourglass shape on its underside.

Black Widow’s usually will build their webs near the ground around the house, or in areas of garage or under bushes.
If the infestation is especially heavy, you can try dust applications that will be a perfect treatment for such areas like attics, crawl spaces, wall voids, basements. #3 Australian Redback Spider also belongs to the same genus.

Black widow … Diet. The black widow, or Latrodectus, gets its name from the insect's gruesome mating ritual - females often eat the males after the act..

The species in the …

Black widows may be found in a variety of habitats. Symptoms of a spider bite are pain, irritation, and redness. The genus contains 32 recognized species.

Insecticides.