Latrodectus
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Latrodectus is a broadly distributed genus of spiders informally called the widow spiders, with several species that are commonly known as the true widows. This group is composed of those often called
Latrodectus hesperus Berkeley, California
Juvenile southern black widow (Latrodectus mactans)
Ventral side of a L. geometricus displaying the hourglass marking
Dorsal side of a mature male L. hesperus in Colorado, United States
Latrodectus mactans
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Latrodectus mactans, known as southern black widow or simply black widow, and the shoe-button spider, is a venomous species of spider in the genus Latrodectus. The females are well known for their dis
Latrodectus
…spiders. A member of the family Theridiidae, this genus contains 34 species, which include several North American "black widows" (southern black widow Latrodectus mactans, western black widow Latrodectus hesperus, and northern black widow Latrodectus variolus). Besides these, North America also has the red widow Latrodectus…
Latrodectus mactans eating
The distinctive red hourglass marking