where do black widow spiders live in the us?
Black Widow Spiders The weather in the American South is extremely conducive to the development of black widow spiders, and several species can be found. A great example is the southern black widow spider (Latrodectus mactans). They are one of the most common black widow species in the Southern United States. Females spin irregular and nonsymmetrical webs. - BLACK WIDOW SPIDERS. Several species of black widow are common in North America, but in the western United States the only species present is the western black widow, Latrodectus hesperus. Its habitat ranges from British Columbia and Alberta to Mexico and throughout the Rocky Mountains to the western portions of the Great Plains.