Northern Black Widow

Latrodectus variolus

Summary 2

Latrodectus variolus, the northern black widow spider or northern widow, is a medically important spider species of the genus Latrodectus in the family Theridiidae. The population is closely related to the southern black widow, Latrodectus mactans, and the western black widow, Latrodectus hesperus, of the genus.

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