The black widow spider can be recognized by the red hourglass marking on its ventral side of the abdomen. The black widow spider is about 1 to 1.5 inches in size and is a shiny, lustrous black color except for the red colored hourglass marking.
According to a recent Wall Street Journal article, Phoenix is the black widow spider capital of the universe.
Some pests do their damage for a short time, then move on. Did you know that in some parts of the world, farmers use black widow spiders to eat the harmful pests from their crops, such as grapes? The spiders will eat the pests but not the grapes! ...
 See also: Spider, Insect, High, Pest, Light
  
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