Brazilian Wandering Spider
Phoneutria depilata
Considered one of the most venomous spiders in the world. It doesn't spin webs: it actively hunts at night, and its neurotoxic venom can cause severe symptoms in humans.
Phoneutria depilata, the Brazilian wandering spider or armadeira, is an arachnid in the Ctenidae family feared for its potent neurotoxic venom. With legs extended it can reach 15 cm. Its body is grayish brown with dark bands on the legs. Unlike most spiders, it doesn't build webs for hunting: it actively wanders the forest floor at night looking for prey. It hides during the day in bromeliads, hollow logs, and occasionally in banana bunches. In Panama, it is the spider of greatest medical importance. Its venom contains a toxin that can cause prolonged erections (priapism), in addition to intense pain and neurological complications.
Warning
Very potent neurotoxic venom. Seek immediate medical attention if bitten. Do not handle.
Habitat
Wet forests, banana plantations, and disturbed areas throughout Panama