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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).
Latrodectus hasselti, the redback spider. The widow spiders (genus Latrodectus), such as the black widow, redback spider, and katipō are spiders that carry a neurotoxic venom [18] which can cause a set of symptoms known as Latrodectism. Widow spiders are large, shiny house spiders with relatively spindly legs and deep, globular abdomens.
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.
These pictures of common venomous bites, including brown recluse and black widow spider bites, will help you determine what bit you and how to relieve symptoms. What You Think Is A Spider Bite Is ...
The spider bites that experts really worry about are bites from venomous spiders, particularly black widows and brown recluse spiders. A bite from one of these types of spiders can cause severe ...
Primarily, arachnid-fearing Pennsylvanians need to worry about only one spider species in the rare event of a bite: the black widow. Brown recluse spiders, which also offer a medically significant ...
Worldwide only two spider venoms have impact on humans—those of the widow and recluse spiders. Unlike snake and scorpion envenomation, [23] widow and recluse species bites rarely have fatal consequences. In addition to the widespread widow and recluse spiders, some spider families found exclusively in remote tropical regions have a lethal ...
Of the four venomous spiders in South Carolina, three are from the widow family: the southern black widow, the northern black widow and the brown widow, according to the Clemson University ...