Chilean recluse spider

Chilean recluse spider

The poisonous bite of the Chilean recluse spider poses a serious threat to human health.



recluse spider, spider, arachnids, tiger spider, South America, Chile, venom gland, venom, necrosis, sting, danger, cephalothorax, abdomen, poisoning, arthropods, Araneae, predator, animal, biology

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Chilean recluse spider

  • Chilean recluse spider

The bite of the Chilean recluse spider causes mild or, at least, delayed pain.
However, within one hour after the bite, severe pain may occur at the bite site. The skin around the bite may become red and itchy. Itching may spread over the entire body surface.
A blister may also form, which may be surrounded by an irregular ring-shaped, inflamed area. The blister later fills with blood and bursts, forming a large and deep ulcer, that leaves a scar after healing.

Nausea, vomiting, pain, fatigue, chills, sweating, blood disorders and kidney failure may also occur, but the bite is rarely fatal.

It is advisable to shake every pair of shoes, every item of clothing, linen, etc. well before wearing or using them.
If a bite occurs, placing ice cubes on the wound may relieve the pain. The inflammation can be treated by corticosteroids, that is, drugs containing adrenal hormones.


  • adult spider: 8–40 mm (including legs)
  • cephalothorax - It has a characteristic, violin-shaped mark.
  • abdomen
  • 6 eyes
  • 8 legs - They are covered in fine hair.
  • chelicerae
  • pedipalps

Natural enemies

  • Chilean tiger spider
  • adult spider: 30–70 mm (including legs)

The Chilean tiger spider is a predatory spider; its prey includes flies, mosquitoes and other spiders, such as the Chilean recluse spider. Its hunting method is characteristic of the species. Its venom gland produces two substances: besides poison, it also produces a sticky substance that the spider spits on its prey in order to immobilise it.
The Chilean tiger spider is harmless to humans; there are no clinical records of attacks on people.


  • Chilean tiger spider
  • Chilean recluse spider

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