The black widow spider is considered the most venomous spider in North America. The female black widow spider bite is 15 times as toxic as the venom of the prairie rattlesnake.
More than 40,000 black widow spider bites have been reported to poison centers in the United States during the past 20 years. The female of the species is easily recognizable, with a large, shiny, black abdomen and a red hourglass marking on the underside. In contrast to many other venomou...
:a venomous New World spider (Latrodectus mactansof the family Theridiidae) the female of which is black with an hourglass-shaped red mark on the underside of the abdomen broadly:any of various related venomous spiders that have a large globular, usually glossy, dark abdomen often marked with ...
The black widow spider is a spider notorious for its neurotoxic venom. It is a large widow spider found throughout the world and commonly associated with urban habitats or agricultural areas. In South Africa, the black widow is also known as the button spider. Adult female black widow spiders...
Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their abdomens. Several species answer to the name, and they are found in temperate regions around the world. Venom This spider's bite is much feared because its venom is reported to be 15 times stronger ...
The black widow spider is the most poisonous spider in North America, but only the females are dangerous. Black widow spiders produce the strongest silk of any spider species, and the bright red hourglass on the spider’s abdomen warns birds and other predators of the potent venom the spider...
They use their neurotoxic venom as a defense — delivering the most toxic spider bite in the U.S. The venom of a female black widow is 15 times stronger than a rattlesnake's, and they have the ability to paralyze large prey. Black widows eat flies, mosquitoes, grasshoppers, beetles and ...
The female has got an hourglass design along with the shiny black abdomen. These spiders live 1 to 3 years on average. While black widows are not really threats for adults they are certainly fatal to small children. Its bite can lead to nausea, muscle aches and even paralysis. Generally th...
black widow spider, Latrodectus hesperus, which is native to western North America. Female black widows of this species are around 15 mm long and black, with a distinctive red hourglass-shaped mark on the abdomen. The male is much smaller, and a lighter tan color with a striped abdomen. ...
black widow- venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen Latrodectus mactans spider- predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they...