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Latrodectus geometricus, commonly known as the brown widow, [2] [3] brown button spider, grey widow, brown black widow, [3] house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus. As such, it is a 'cousin' to the more infamous Latrodectus mactans (black widow).
Latrodectism (/ l æ t r ə ˈ d ɛ k t ɪ z əm /) is the illness caused by the bite of Latrodectus spiders (the black widow spider and related species). Pain, muscle rigidity, vomiting, and sweating are the symptoms of latrodectism.
“Brown recluse spider bites tend to be painless, but black widow spider bites can be painful,” Levoska explains. “Brown recluse spider bites can get a blister,” she adds, “and they can ...
The eye arrangement of spiders in the genus Latrodectus. Female widow spiders are typically dark brown or a shiny black in colour when they are full grown, usually exhibiting a red or orange hourglass on the ventral surface (underside) of the abdomen; some may have a pair of red spots or have no marking at all.
Black widow and brown recluse spider bites can cause more severe symptoms and, in rare cases, death, the Centers for Disease Control and Prevention say. If you're bitten by one of these spiders ...
Brown widow spiders are gray to brown in color with white and black markings on the top surface of their bulbous abdomens. ... Call 911 immediately if you think you have a black widow spider bite ...
The spiders of most concern in North America are brown recluse spiders, with nearly 1,500 bites in 2013 [49] and black widow spiders with 1,800 bites. [49] The native habitat of brown recluse spiders is in the southern and central United States, as far north as Iowa.
These types of bites are rare, but brown recluse, black widow, and hobo spider bites can be deadly, so if you suspect one bit you, seek medical treatment immediately. You may need antibiotics ...