This is the chilling moment a biologist makes the skin-crawling discovery that a room he had rented for a scientific conference is infested with flesh-rotting deadly spiders.
Wildlife expert Christian Raboch had booked the room in Curitiba, in the Brazilian state of Parana, through an Airbnb-style app but was horrified when he saw a brown recluse spider under the duvet.
In a horror movie-style clip Raboch filmed himself tracking down a nest of at least seven of the creepy crawlies in his bed and in a chest of drawers.
Their bite can induce necrosis which kills off skin and flesh around the bite and spreads so quickly through the body that it can burst blood vessels and cause deadly clotting.
Raboch was so freaked by the discovery he says he abandoned the room and slept in his car instead.
Biologist finds spiders in rented room in Curitiba (PR), Brazil, undated. In the end he had to sleep in a car. Note: Photo is a screenshot from a video(@biologo.christian/Newsflash/NX)
In the video, posted on TikTok on 18th May, he is seen following one spider as it crawls through the duvet he was supposed to be sleeping on.
Then as he pulls back the bedding he says: "I found their nest."
Raboch warns: "Although I am a biologist and I like animals, these brown spiders are no joke."
He goes on to explain how the species is especially dangerous when it nests in a bed.
Biologist finds spiders in rented room in Curitiba (PR), Brazil, undated. In the end he had to sleep in a car. Note: Photo is a screenshot from a video(@biologo.christian/Newsflash/NX)
Raboch explains: "When a person lies down, they don't see this creature, disturb it but they don't feel the sting.
"After a few days, the skin starts itching and begins to die."
The species, known to biologists as Loxosceles reclusa, is among the most dangerous spiders in the Americas, with venom that causes cell death and tissue necrosis.
Raboch's video was posted just 25 days after a 31-year-old Maria Fernanda Vazquez Mora died in Mexico from heart failure when she was bitten by a brown recluse spider.
Experts say the spider's venom contains enzymes that are 10 times more powerful than a sulphuric acid burn.
Biologist finds spiders in rented room in Curitiba (PR), Brazil, undated. In the end he had to sleep in a car. Note: Photo is a screenshot from a video(@biologo.christian/Newsflash/NX)
Victims are urged to apply ice, keep the wound clean, and seek immediate medical attention.
The spider is nocturnal and prefers hiding in dark corners during the day, becoming active at night, particularly in hot summer months.
Local media reports did not name the app the biologist used to rent the room but said the owner had returned his money.
(MJ Leidig/newsX)