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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).
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.
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 ...
Phoneutria nigriventer, the Brazilian wandering spider (a ctenid spider) is a large brown spider similar to North American wolf spiders in appearance, although somewhat larger. It has a highly toxic venom and is regarded (along with the Australian funnel-web spiders) as among the most dangerous spiders in the world. [6]
Latrodectus is a broadly distributed genus of spiders with several species that are commonly known as the true widows.This group is composed of those often loosely called black widow spiders, brown widow spiders, and similar spiders.
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 ...
An entomologist explains how to get rid of spiders indoors and outdoors, plus how to identify two dangerous species: black widow and brown recluse spiders.
U24-ctenitoxin-Pn1a is naturally found in the venom of Latrodectus geometricus, often referred to as the brown widow spider or brown button spider.The spider genus Latrodectus is found worldwide in pantropical and subtropical regions and is considered one of the most dangerous spider genera to humans and animals.