Latrodectus, commonly known as the widow spiders, is noted for its striking red hourglass marking on the underside of its abdomen. These spiders are found in warm regions worldwide and are known for their potent venom. They create tangled webs and are solitary, typically hiding in dark, undisturbed areas.

Latrodectus species, commonly known as widow spiders, are found on every continent except Antarctica. Their geographical distribution includes North America, South America, Europe, Africa, Asia, and Australia. Specific regions where they are commonly found include the southern United States, parts of the Mediterranean region, Southern Africa, and Australia.

Widow spiders often inhabit areas that provide them with shelter and abundant prey. They are commonly found in temperate and tropical climates. These spiders prefer dark, undisturbed environments such as woodpiles, under rocks, in hollow tree trunks, and in man-made structures like barns, garages, and sheds.

Latrodectus species are primarily nocturnal predators, feeding on insects and other small arthropods. They play a crucial role in controlling insect populations in their ecosystems. They typically construct irregular, tangled webs in sheltered locations to capture prey. The spiders are known for their venom, which they use for subduing prey and deterring predators.