Black Widow Spider

These infamous spiders have highly toxic venom, but they seldom leave their webs and are not inclined to bite humans.

During warm months, they build webs and irregular mesh of strong silk-under stones,near entrances to abandoned rodent burrows, or around outbuildings.

What do they look like?
Black Widow Illustration

  • Hourglass marking: Black widows are identified by red hourglass marking on the underside of their abdomens. This marking is bright red and signals danger to predators and attackers.
  • Color: Black widows are shiny black in color.
  • Size: Most black widow spiders’ bodies are 3 to 10 mm in size. Females are larger than males and can measure 13 mm in body length.


Similar spices include western widow.