Brazilian wandering spider
The Brazilian wandering spider is a species of spider found in South and Central America. It has a tendency to wander into cities such as Rio De Janeiro. They have a very toxic bite and on the Guinness Book of World records. Wandering spiders are so-called because they wander the jungle floor at night, rather than residing in a lair or maintaining a web. During the day they hide inside termite mounds, under fallen logs and rocks, and in banana plants (hence the "banana spider" nickname) and bromeliads. P. nigriventer is known to hide in dark and moist places in or near human dwellings. P. nigriventer mates during the dry season from April to June, which leads to frequent observations of the species during this time.