Most female black widow spiders have a red or orange hourglass mark on their abdomen, although this can vary from one spider to the next. Some may have red triangles, spots, or no marking at all.

The black widow spider ... genus in which there are 31 recognized species including the Australian red-back, brown widow spider (sometimes called the gray widow), and the red widow spider.

Male black widow spider The male of this species has an elongated body with white and red markings on the sides. The male's legs are much longer in proportion to its body than are the female's.

This variation in coloring means that black widow spiders can be tricky to spot if they aren’t black and red females. 2. Only female spiders bite … usually.

Editor’s note: This article was updated at 5:35 p.m. Friday, Nov. 17, 2023, to correct that the red hourglass shape is on black widow spider’s abdomens. Originally Published: November 17, 2023 ...

There are several species of widow spiders in the United States, including the northern and southern black widow and the red widow. The brown widow spider is considered one of the least dangerous.

Arguably one of the most iconic spiders in the world, the black widow spider (Latrodectus mactans) is an arthropod with an unmistakable identity.This jet-black arachnid ranges from 0.2 to 0.5 ...

A black widow spider with an egg sac. The spider can be found in every state other than Alaska. Smith Collection/Gado/Getty Images "And unlike bees and wasps, they do not leave their dwelling to ...

Both species of widow spiders have glove-shaped abdomens and long legs, with females generally being larger than males. Female black widows are glossy black, featuring a red hourglass pattern on ...