Spiders in Puerto Rico

Like many other countries in the Americas, Puerto Rico is home to creepy crawlies that have given many tourists the willies. While relaxing among palm palms or exploring nature areas in Puerto Rico, you should be prepared to encounter spiders. There are numerous spider species in Puerto Rico, and they may be found throughout the island. Thankfully, most don’t have poisonous bites, but a few do, and they can strike without warning. To prepare you for your upcoming trip to this lovely sun-soaked island, we will give you some of the most important information about spiders in Puerto Rico.

Spiders in Puerto Rico Spiders in Puerto Rico Identification Chart

Common Spiders in Puerto Rico

Golden silk orb weaver Banana spiders Tent cobweb weavers
Banded garden spider (Argiope trifasciata) Red house spider (Nesticodes rufipes) Brown sailor spider (Neoscona nautica)
Grey House Spiders (Zosis geniculate)

Biggest Spiders in Puerto Rico

Giant Huntsman spider or Giant Crab Spider (Heteropoda venatoria) Tailless whip scorpions, or “guaba” or also known as Cave spiders Puerto Rican brown tarantulas
Green Huntsman Spiders Banana spiders or Golden silk spiders

Most Venomous Spiders

Recluse Spiders/Fiddleback Spiders/Violin Spiders (Sicariidae Spiders)

Brown Recluse Image Brown Recluse Spider (Loxosceles reclusa) - The brown recluse spider is a special spider found mostly in the central and southern parts of the U.S. It's part of a small group of spiders in North America known for having strong venom, along with the Chilean recluse and black widow.… Continue Reading >

Tarantulas (Theraphosidae)

  • Common Puerto Rican Brown Tarantula – Cyrtopholis portoricae

Cobweb Spiders/Tangle Web Spiders (Theridiidae)

Southern Black Widow Size Southern Black Widow (Latrodectus mactans) - Did you know there's a spider called the southern black widow? It's mostly found in North America. It has family members like the western black widow and northern black widow, and they look a bit alike.… Continue Reading >

Huntsman Spiders/Giant Crab Spiders (Sparassidae Family)

Giant Cane Spider Cane (Heteropoda venatoria) - Picture a large spider called the Cane Spider. It lives in warm, tropical places and doesn't make webs. Instead, it hunts for food when the stars come out!… Continue Reading >

Green Huntsman Spider Picture Green Huntsman (Micrommata virescens) - The green huntsman spider is a special spider from the Sparassidae family. It's found mostly in Northern and Central Europe. They are called "green huntsman" because of their bright green color.… Continue Reading >

Less Venomous Spiders

Cobweb Weavers/Tangle Web Spiders (Theridiidae)

  • Tent Cobweb Weavers – Tidarren sisyphoide

Huntsman Spiders/Giant Crab Spiders (Sparassidae Family)

Giant Huntsman Spider Size Giant Huntsman (Heteropoda maxima) - The Giant Huntsman spider has a big claim to fame: it has the longest legs among all spiders! Found in the Laos region, this spider is also super speedy. It chases its prey really fast!… Continue Reading >

Tarantulas (Theraphosidae)

Puerto Rican Pink Toe Tarantula Puerto Rican Pinktoe Tarantula (Caribena laeta) - The Puerto Rican pinktoe tarantula is a special spider found only in the Americas. Known for its unique appearance, especially when young, many collectors and spider lovers want to have one.… Continue Reading >

Wandering Spiders

Nephila Clavipes Web Nephila Clavipes - The Golden-orb weaver family has a special member called Nephila Clavipes. This unique spider lives in both Northern and Southern America. Some people in the United States even call it the banana spider.… Continue Reading >

Frequently Asked Questions

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The most common spiders in Puerto Rico include the golden silk orb-weaver, also known as the banana spider, and various house spiders like the red house spider. You may also frequently encounter banded garden spiders, tent cobweb weavers, and brown sailor spiders in gardens and natural areas throughout the island.

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Yes, Puerto Rico is home to venomous spiders, though most are not dangerous to humans. The most medically significant is the brown recluse spider, whose bite can cause serious reactions. While tarantulas and huntsman spiders possess venom, their bites are generally not considered a major threat to people.

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The biggest spider in Puerto Rico by leg span is the giant huntsman spider (Heteropoda venatoria), also called the giant crab spider. Another large species is the Puerto Rican brown tarantula (Cyrtopholis portoricae), which is notable for its robust body and significant size, making it one of the island’s largest arachnids.

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The Puerto Rican brown tarantula is not considered highly dangerous to humans. While its bite can be painful and cause localized swelling, its venom is not medically significant. This species may also flick urticating hairs from its abdomen when threatened, which can cause skin and eye irritation upon contact.

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The creature known as a ‘guaba’ or cave spider in Puerto Rico is actually a tailless whip scorpion, which is an arachnid but not a true spider. Despite its intimidating appearance, the guaba is harmless to humans as it lacks venom glands and does not bite defensively.

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Yes, brown recluse spiders, also known as fiddleback spiders, are found in Puerto Rico and are considered the most medically significant spider on the island. Their bite is cytotoxic and can cause severe tissue damage. If you suspect a bite from a brown recluse, it is crucial to seek immediate medical attention.

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You can identify a golden silk orb-weaver, or banana spider, by its large size and distinctive, strong web that has a golden sheen in sunlight. The females are particularly noticeable, featuring long, yellowish bodies and legs with prominent tufts of hair. They are commonly found in forests and gardens.