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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 spiders in the genus can grow to have a leg span of 13 to 18 cm (5 to 7 in). Their body length ranges from 17 to 48 mm (43 ⁄ 64 to 1 + 57 ⁄ 64 in). [4] [5] While some other araneomorph spiders have a longer leg span, the largest Phoneutria species have the longest body and the greatest body weight in this group. [6]
The Goliath birdeater found in South America These spiders can have a leg span of up to 30 cm (12 in), [ 4 ] a body length of up to 13 cm (5.1 in), and can weigh up to 175 g (6.2 oz). [ 5 ] Birdeaters are one of the few tarantula species that lack tibial spurs, located on the first pair of legs of most adult males.
In Spanish, it (and other South American recluse spiders) is known as araña de rincón, or "corner spider"; in Brazilian Portuguese, as aranha-marrom or "brown spider". It is considered by many to be the most dangerous of recluse spiders, and its bites often result in serious systemic reactions, up to and including death. [2]
Wandering spiders (Ctenidae) are a family of spiders that includes the Brazilian wandering spiders. These spiders have a distinctive longitudinal groove on the top-rear of their oval carapace similar to those of the Amaurobiidae . [ 1 ]
One study estimates that the global average spider density is 131 spiders per square meter. Obviously, habitats like deserts have fewer spiders, but others have spider densities of 1,000 per ...
The largest of these spiders can skate across water, chase down their prey, reach 4-4.5 inches in length and can be found in your own backyard.
This category contains articles about spiders that have a South American native distribution, rather than being limited to particular regions or countries in South America. Spiders native to South America may also be found in categories covering larger areas: Category:Cosmopolitan spiders – spiders native worldwide