Identify Your Pest

Black Widow Spider Size - Pest Control Des Moines

Black Widow Spider

Quick Facts


Bodies can range up to 1/2 in long (13 mm) long.

Preferred Habitat

They are often found in and around wood piles. They prefer areas that remain undisturbed.

Known Health Issues

Their bites are very painful but are not lethal with proper care. Children and the elderly are especially susceptible to a severe reaction.
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Black Widow spiders are most common in the south and southwest regions of the United States, but can also be found in more northern climates during warm summer months. These small spiders are black with a distinct orange or red marking on their backs. They range in size up to ½ inch (13 mm) long with the females being about 20 times larger than the males and much more venomous. While they are considered one of the most venomous spiders in the world in terms of their venom concentration, their bites are not lethal with proper care. Children and elderly people are especially susceptible to severe reactions to black widow bites.

Both sexes of black widows build funnel-shaped webs in dark, secluded, dry and still areas. These can include basements, leaf piles and outdoor plumbing, but they build webs wherever they can find protection from the elements. Black widows prefer to live in and around wood piles, so this is something to keep an eye on if there is a firewood supply near or in your home. They generally do not venture outside of their habitats unless disturbed. Get rid of your spider problem fast and call Miller Pest & Termite today.