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.

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.

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.

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 ...

The Southern Black Widow (Latrodectus mactans) is probably the most common Widow spider in our area. The base color of Black Widows is jet black, with various patterns of red, orange, yellow, and ...

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 ...