Red widow spiders have entirely red-brown bodies, with the exception of their black abdomen. ©Florida Division of Plant Industry Archive / CC BY 3.0 US, via Wikimedia Commons – Original ...

The female Joro spider has blue-black and yellow stripes on its back and legs. The spider’s underside has distinct red markings. The Joro spider spins immense golden webs spanning over 3 feet ...

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 ...