The Brazilian wandering spider (or Phoneutria nigriventer) is a species of arachnid native to South America – predominantly in the rainforests, although it does often live in urban areas alongside humans. The spiders are large, venomous and pale brown in colour, with a hairy body and black striations on their legs. Males are slightly smaller than females with a much smaller abdomen, and also have swollen bulbs on the end of their palps, which are the segmented appendages near the mouth and are often used to distinguish the sexes. They have an average leg span of between 130 and 150mm, and an average body size of 17x48mm. A classic behaviour of the Brazilian wandering spider is its defensive posture, whereby it raises its front two sets of legs and leans from side to side.
Latin Name
Phoneutria nigriventer
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Animal Facts
The Brazilian wandering spider is so named because it wanders the forest floor at night searching for prey rather than building a web or lair. During the day, it hides in termite mounds, under logs or rocks.
The genus name for the Brazilian wandering spider is 'Phoneutria' which means 'murderess' in Greek.
Female Brazilian wandering spiders are more venomous than males.
The venom of the Brazilian wandering spider can cause paralysis and asphyxiation, and is one of the most deadly spider venoms to humans. However, wandering spiders are unlikely to bite unless surprised, and they often do not inject venom with their bites.
The Brazilian wandering spider is also known as the banana spider because it is often found hiding in banana plants, and has occasionally been shipped to foreign countries in banana crates.