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Black Widow Spider

Spiders & Scorpions
Black Widow Spider Female

Black Widow – Lactrodectus mactans (Fabricius).  The black widow is one of the most important spiders due to its ability to bite humans and inject poison.  The adult females of the spider is glossy jet black in color, has a ball-shaped abdomen, and a much smaller cephalothorax.  Markings can range in color from yellow, orange or the usual red and appear as lines and hour glass markings.  The hour glass is on the underneath of the abdomen.  Black widows make irregular looking webs and are usually found behind items store against walls on the outside of structures or in storage areas such as sheds and garages.