Black widows are widely considered to be the most venomous spiders in North America and can live for up to three years,
Teouna and Ken Thomas saw the large, creepy-crawly guest climbing up the window outside their house.
The arachnid belongs to a genus, or group of species, known as Loxosceles—which are commonly referred to as recluse spiders, violin spiders, brown spiders, fiddle-backs or reapers.
"My initial reaction was just to get the bloody thing out of me as fast as possible," the man said.
Deforestation and urban sprawl are forcing the venomous animals into contact with humans.
Researchers suggest that the older females may be seducing the males with pheromone signals.
The creature fills the gap between ancient tailed arachnids and true spiders.
The creatures have striking arm-like claws, but are harmless to humans.