Types of Widow Spiders

The brown widow spider, Latrodectus geometricus, is an arachnid closely related to the deadly black widow, Latrodectus macrons. And the brown widow is showing up in places where no one expects. The brown widow's range was previously limited to the southeastern United States, but in recent years it has been turning up in the western states as well.

Katipo Spider. The Katipo or Red Katipo Spider (Latrodectus katipo) is a vulnerable, venomous spider native to New Zealand. The Katipo Spider is a widow spider and is related to the black katipo, the Australian red-back spider and the black widow spiders. The Katipo spider is considered endangered.

Latrodectus is a genus of spiders in the family Theridiidae, most of which are commonly known as widow spiders. The genus contains 31 recognized species distributed worldwide, including the North American black widows (L. mactans, L. hesperus, and L. variolus), the button spiders of Africa, and the Australian redback spider.

Latrodectus (Widow Spiders) has been sighted in the following countries: Argentina, Australia, Bahrain, Brazil, Canada, Curacao, India, Israel, South Africa, Turkey, United Arab Emirates, United States.

Latrodectus is a genus of spiders in the family Theridiidae, most of which are commonly known as widow spiders. The genus contains 31 recognized species distributed worldwide, including the North American black widows (L. mactans, L. hesperus, and L. variolus), the button spiders of Africa, and the Australian redback spider.

Latrodectus pallidus is a species of spider commonly found throughout North Africa, the Middle East, and central Asia. A common name in English is the white widow spider, and it is known in Russian as белый каракурт, or white steppe spider.

Latrodectus tredecimguttatus, sometimes known as the Mediterranean black widow, the European black widow, or the steppe spider, is a species in the genus Latrodectus of the widow spiders. It is commonly found throughout the Mediterranean region, ranging from southern Iberia to southwest and central Asia, hence the name.

The redback spider (Latrodectus hasseltii) is a species of highly venomous spider believed to originate in the South Australian or adjacent Western Australian deserts, but now found throughout Australia, Southeast Asia and New Zealand, with colonies elsewhere outside Australia.

In Canada, black widows range in the southern parts of British Columbia, Alberta, Saskatchewan, Manitoba and Ontario. In the Dominican Republic it is found throughout the whole country. Latrodectus mactans, along with Latrodectus hesperus and Latrodectus geometricus (the "brown widow spider"), is established in the Hawaiian Islands (USA).

The widow spiders are a group of related spiders in the genus Latrodectus. Several species occur in the United States, but the western widow, Latrodectus hesperus, is the overwhelmingly dominant species throughout Colorado.