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.

northern black widows and western black widows, all of which have a version of the classic red hourglass-shaped marking that can be pretty easily identified. Meanwhile, you're more likely to find ...

Even if you know nothing about this spider, a few key details probably come to mind: a visible red hourglass mark and a ...

They're notable for having a red hourglass marking on their dark brown or black bodies. And females are the biggest of the black widows, with legspans coming in at around 1.5 inches. They rarely ...

Although they resemble black widow spiders, they are not as harmful ... An additional species, Steatoda paykulliana, is an occasional import in fruit shipments. Abdomen markings: All species have ...