Black Widow
black widow
Photo: Jeff Hahn
Size ½ inch long (body length). Underside of abdomen with characteristic red/orange hourglass shaped marking.
Where/When It is found generally in the southern and southwestern U.S. Does not occur in Minnesota. Has rarely been transported into Minnesota, generally on produce, such as grapes. It builds an irregular-shaped web and prefers secluded, protected areas. Outdoors, it is found in dense plant growth, logs, boards, firewood piles and other debris. Indoors, it is found in boxes, under furniture, crawl spaces and in any area with clutter.
Significance Should be considered a dangerous spider. Can bite humans, injecting a type of neurotoxin venom which is often accompanied with intense pain.