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Phoneutria nigriventer is a species of medically-significant spider in the family Ctenidae, found in the Southern Cone of South America (Brazil, Uruguay, Paraguay, and Argentina). [1] Along with other members of the genus, they are often referred to as Brazilian wandering spiders. [2]
The neurotoxic venoms of the Sydney funnel-web spider and the Brazilian wandering spider are both known to have lethal complications. For the Brazilian wandering spider only 1 out of 200 bites is serious, [24] in part because they appear to be capable of biting without injecting venom. [25]
The spider was positively identified as a Phoneutria by Wolfgang Bücherl. [17] Fatalities are usually attributed to respiratory arrest, secondary to systemic effects, or directly to envenoming. Systemic effects occur in 9% to 27% of cases; symptoms at the sites are more frequent, occurring from 83% to 96% of cases.
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It is the banana spider’s doppelganger, the Brazilian Wandering Spider, that was named the most venomous animal in 2007 by the Guinness Book of World Records. To tell the two apart, take a ...
Numerous spider bites are recorded in Brazil with 5000+ annually. Loxosceles species are responsible for the majority of reports. Accidents are concentrated in the southern state of Parana with rates as high as 1 per 1,000 people. [51] Bite from Phoneutria (Brazilian wandering spider) number in the thousands with most being mild. Severe effects ...
This arachnid species is a common American spider that can be found throughout the country. “The golden silk orbweaver is a tropical climate spider. Its name comes from the color of its spider silk.
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 ]