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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.
Brown recluse and black widow spiders are venomous spiders Black widow and brown recluse spiders are "the two types of venomous spiders that are really of medical concern," Gangloff-Kaufmann explains.
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 ...
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 ...
L. geometricus (brown button spider) L. rhodesienses (Zimbabwe button spider) L. umbukwane (Phinda button spider) L. geometricus is found in many parts of the world,(including in the United States) and it is known as the brown widow spider. it is unknown where this species' origins are. L. rhodesienses is native to Africa. Both brown button ...
That said, there are two species — black widow spiders and brown recluse spiders — with particularly potent bites that can lead to severe symptoms such as vomiting, fever, chills and more ...