<P> Widow spiders can be found on every continent of the world except Antarctica . In North America , the black widows commonly known as southern ( Latrodectus mactans ) , western ( Latrodectus hesperus ) , and northern ( Latrodectus variolus ) can be found in the United States , as well as parts of southern Canada -- particularly in the Okanagan Valley of British Columbia , as can the `` gray '' or `` brown widow spiders '' ( Latrodectus geometricus ) and the `` red widow spiders '' ( Latrodectus bishopi ) . The blue mud dauber ( Chalybion californicum ) is a wasp that is the primary predator of black widow spiders . </P>
<P> Widow spiders can be found on every continent of the world except Antarctica . In North America , the black widows commonly known as southern ( Latrodectus mactans ) , western ( Latrodectus hesperus ) , and northern ( Latrodectus variolus ) can be found in the United States , as well as parts of southern Canada -- particularly in the Okanagan Valley of British Columbia , as can the `` gray '' or `` brown widow spiders '' ( Latrodectus geometricus ) and the `` red widow spiders '' ( Latrodectus bishopi ) . The blue mud dauber ( Chalybion californicum ) is a wasp that is the primary predator of black widow spiders . </P>
where do you find a black widow spider
where do you find a black widow spider
on every continent of the world except Antarctica
on every continent of the world except Antarctica