(Widow Spiders)

Latrodectus, commonly known as Widow Spiders, is a genus of spiders in the family Theridiidae. Latrodectus spiders have been sighted 78 times by contributing members. Based on collected data, the geographic range for Latrodectus includes 7 countries and 21 states in the United States. Latrodectus is most often sighted outdoors, and during the month of June.

Taxonomic Hierarchy

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Arachnida
  • Order: Araneae
  • Suborder: Araneomorphae
  • Family: Theridiidae
  • Genus: Latrodectus

Common Name (AASMore information icon)

Widow Spiders

Other Common Names

Cobweb Spiders, Cob Web Spiders, Comb-footed Spiders, Tangle-web Spiders, Gumfoot-web Spiders, Button Spiders (Africa)


Charles Athanase Walckenaer, 1805

Sightings Overview

There have been 78 confirmed sightings of Latrodectus (Widow Spiders), with the most recent sighting submitted on February 20, 2018 by Spider ID member groundhog. The detailed statistics below may not utilize the complete dataset of 78 sightings because of certain Latrodectus sightings reporting incomplete data.

  • Web: 40% of the time, Latrodectus spiders are sighted in a spider web (Sample size: 15)
  • Sex: 46 female and 19 male.
  • Environment: Latrodectus has been sighted 8 times outdoors, and 7 times indoors.
  • Outdoors: Man-made structure (6). Low foliage (1). High foliage (1).

Location and Range

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

Latrodectus has also been sighted in the following states: Alabama, Arizona, Arkansas, California, Colorado, Florida, Georgia, Hawaii, Illinois, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Mississippi, Missouri, New Mexico, None, North Carolina, Texas, Virginia.


Latrodectus has been primarily sighted during the month of June.

  • January: 8
  • February: 8
  • March: 5
  • April: 3
  • May: 5
  • June: 10
  • July: 10
  • August: 5
  • September: 2
  • October: 4
  • November: 2
  • December: 4

Additional Remarks

  • There are 5 different species of Latrodectus (“widow spiders”) in North America.

Latrodectus Species

Featured Pictures

Picture of Latrodectus spp. (Widow Spiders) - Ventral Enlarge Picture
Picture of Latrodectus spp. (Widow Spiders) - Ventral Enlarge Picture
Picture of Latrodectus spp. (Widow Spiders) - Ventral Enlarge Picture
Picture of Latrodectus spp. (Widow Spiders) - Female - Egg Sacs,Webs Enlarge Picture
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