Phoneutria - an overview | ScienceDirect Topics (2023)

For Phoneutria species, wound cleansing, immobilization, antihistamines, opiates for pain, tetanus prophylaxis, and antivenom are available and useful.

From: Clinical Neurotoxicology, 2009

Related terms:

  • Venom
  • Genus
  • Wolf Spider
  • Recluse Spider
  • Envenomation
  • Latrodectus
  • Banana
  • Atrax
  • Loxosceles
  • Camel
View all TopicsNavigate Right

Neurotoxic Animal Poisons and Venoms

Terri L. Postma, in Clinical Neurotoxicology, 2009

Brazilian Wandering, Armed, or Banana Spider

Phoneutria are impressive spiders reaching body sizes up to 3.5 centimeters and leg spans up to 15 centimeters. They are nocturnal, hunting at night, and hiding in dark places during the day. They do not make webs, thus the designation “wandering,” and are known to turn up outside their South American territory via transport in banana shipments (Box 1). They are aggressive, and their name, Phoneutria, is Greek for “murderess.” Their large chelicerae inflict painful stings, causing immediate sweating and local piloerection. Within 30 minutes, symptoms become systemic and include hyper- or hypotension, tachy- or bradycardia, diaphoresis, nausea, abdominal cramping, hypothermia, priapism, vertigo, convulsions, blurred vision, and rarely, death.9,27

View chapterPurchase book

Read full chapter


(Video) Handling Spiders the Beastie Way Top Tips

SPIDERS (Araneae)

GARY R. MULLEN, in Medical and Veterinary Entomology, 2002


The genus Phoneutria is widely distributed throughout South America, where members are known as wandering spiders and banana spiders. They are large aggressive spiders which actively hunt at night, feeding on both invertebrate and vertebrate prey. The venom is highly neurotoxic to humans and acts on both the central and peripheral nervous systems, producing a characteristic syndrome. The most dangerous species is Phoneutria nigriventer, which occurs throughout Brazil, Uruguay, and Argentina, where cases of human envenomation are quite common. It is a large species, with females attaining body lengths up to 5 cm. Its venom contains a number of pharmacologically active compounds, including histamine and serotonin in addition to neurotoxin. Its bite is extremely painful and causes a number of symptoms such as salivation, sweating, muscular spasms, painful penile erection, and visual problems. Deaths are usually attributed to respiratory failure.

View chapterPurchase book

Read full chapter


Spiders (Araneae)

Gary R. Mullen, Richard S. Vetter, in Medical and Veterinary Entomology (Third Edition), 2019

(Video) Invasive Species: History & Impacts in Hawaii

South American Wandering Spiders

The genus Phoneutria is widely distributed throughout South America, where members are known as wandering spiders, armed spiders, and banana spiders. They are large, aggressive spiders that actively hunt at night, feeding on both invertebrate and vertebrate prey. The venom is highly neurotoxic to humans and acts on both the central and peripheral nervous systems, producing a characteristic syndrome. The most dangerous species are P.nigriventer (Fig.25.10) and P.keyserlingi, which occur throughout Brazil, Uruguay, and Argentina, where cases of human envenomation are quite common. It is a large species with females attaining body lengths up to 5cm. Its venom contains a number of pharmacologically active compounds including histamine and serotonin, in addition, to neurotoxin. Its bite is extremely painful and causes a number of symptoms such as salivation, sweating, muscular spasms, painful penile erection, and visual problems. Deaths are rare and usually are attributed to respiratory failure. In onestudy of several hundred bite victims, 96% of 10- to 70-year-olds experienced no, or only mild, envenomation effects (Bucaretchi etal., 2000).

Phoneutria - an overview | ScienceDirect Topics (1)

Figure25.10. Phoneutria nigriventer (Ctenidae), female on tree trunk, Brazil.

Photograph by João P. Burini.

View chapterPurchase book

Read full chapter



Jennifer A. Lowry, in Toxicology Cases for the Clinical and Forensic Laboratory, 2020


In contrast to snake envenomations, antivenom is not widely available for most arachnid envenomations. Spider antivenom is available and effective for neurotoxic envenomations from Atrax spp. (Funnel web spiders—Australia), Phoneutria spp. (Banana spiders—Brazil), and Latrodectus spp. (Widow spiders—worldwide). Funnel web spider envenomations can be life-threatening with frequent deaths noted for those who do not receive antivenom. Antivenom is commonly used for moderate to severe envenomations from the Brazilian banana spider especially in the very young and elderly. Widow antivenom is recommended for moderate to severe envenomations worldwide but is less likely to be given in the United States. In fact, a shortage exists for antivenom in the United States. This may be, in part, due to the original product as a horse serum–derived product which can result in significant adverse reactions, including anaphylaxis and serum sickness. However, a more highly purified equine F(ab)2 antibody is being studied for use and is proposed to result in less adverse reactions.

Historically, scorpion envenomations were treated with antivenom therapy consisting of whole IgG derived from goat serum. As this was highly immunogenic, anaphylaxis and serum sickness were common. After its discontinuation in 2001, antivenom was not available until 2011 when the US Food and Drug Administration approved a more highly purified equine F(ab)2 antibody to Centruroides sp. [21]. In a recent metaanalysis, antivenom against Centruroides sp. was found to be effective in reversing the clinical syndrome faster than no antivenom; however, it is usually reserved for patients with significant toxicity [18,28,29]. Globally, clinical improvement has been seen with the use of antivenom for scorpion envenomations from Mesobuthus tamulus, Leiurus quinquestriatus, and Androctonus spp., but these findings are not consistent across all studies. Of the three species, envenomations from M. tamulus has been more likely to respond to antivenom [18,29].

(Video) RBK Response and Recovery Committee - 25/06/20

View chapterPurchase book

Read full chapter


Spider Physiology and Behaviour

Lucia Kuhn-Nentwig, ... Wolfgang Nentwig, in Advances in Insect Physiology, 2011

4.6 Conclusions

In conclusion, our investigations clearly illustrate that spider venom components still have many original bioactivities to reveal, only a minor portion of the huge molecular biodiversity they offer has been studied. Venoms have mostly been studies when originating from species harmful to humans (Phoneutria, Loxosceles and Latrodectus species) or obtained from easily available, large and easy to milk specimen (Theraphosidae typically). Not only have a very few species been looked at (less than 1%), most of these were further only partially studied. Biological activities seem often to be found where researchers look at, or around what they are looking for. One should thus be careful with paradigms stating that a given venom has a specific activity or is composed “only” of one class of spider venom components. It may just be that one research team only, specialized in one aspect of toxinology, studied that particular venom. Are there rules or is this mostly the result of topic-focused research? A broader view is clearly needed and only future large scale studies will tell.

Our current knowledge suggests that spiders have evolved towards several objectives, but mainly as a result of two major considerations: The first is a permanent need to save energy and avoid any unnecessary investment. Spiders may not find food every day and its takes 1–2 weeks to regenerate the venom. As a result, the venom has gained in potency and synergistic mechanisms have been optimized. The second evolutionary pressure is correlated to the absolute need of efficacy when envenoming a prey or a predator. To this end, Nature has favoured increased complexity of venom to secure a bioactivity of a complex cocktail made of highly potent and selective ingredients that will affect a broad range of targets and offer the best adaptation to environmental changes.

Spider venoms represent what probably is one of the world's largest combinatorial compound library selectively developed to generate highly potent and selective bioactives that have undergone a natural lead optimization process through million years of natural selection. Venom composition and strategies in spiders: is everything is possible? We believe yes!

View chapterPurchase book

Read full chapter

(Video) Tarantulas of the USA with a Focus on the Sky Islands of Arizona and New Species - Michael Jacobi



Trevor Zachariah, Mark A. Mitchell, in Manual of Exotic Pet Practice, 2009


Arachnids are feared the world over, and this is unfortunate considering these animals prey on many of the insects considered to be pests or vectors for disease. One of the reasons that humans fear these animals is because of the perceived concern associated with their venom. With very rare exceptions, spiders possess venom. However, most are either unable to bite or their venom is not dangerous to humans. The World Health Organization lists four genera as exceptions: Atrax, Latrodectus, Loxosceles, and Phoneutria. The most common, from the standpoint of their relative abundance and popularity in the United States, are widow spiders (Latrodectus spp.) and recluse spiders (Loxosceles spp.). Widow spiders produce a neurotoxic venom that can cause abdominal and leg pain, high cerebrospinal fluid pressure, nausea, muscle spasms, and respiratory paralysis.3 Death is infrequent, and signs usually resolve within 3 to 7 days after symptomatic treatment with or without antivenin therapy.42 Recluse spiders produce cytotoxic venom that induces a necrotic ulcer at the site of the bite. It is rare that these envenomations become systemic.42 Symptomatic treatment is usually sufficient, and reports of mortalities are uncommon.42 Species from both of these genera are relatively common in captivity, although this practice is not recommended. Less commonly encountered, though particularly more potent in venom and aggressiveness, are the funnel web spiders (Atrax spp.) and the South American “banana spiders” (Phoneutria spp.).

Giant spider bites are not considered serious. In general, Old World species are believed to have more potent venom than New World species.43,44 Most individuals envenomated by giant spiders develop mild to severe local pain, itching and tenderness, edema, erythema, joint stiffness and swollen limbs, burning feelings, muscle cramps, and temporary paralysis.43 Schultz and Schultz10 reported on the symptoms associated with the bites of various species of giant spider and found that all of them were mild and short-lived. Rather than toxicity, the real significance of giant spider bites may be the potential for mechanical injury. Fangs can be large, with those of adult Theraphosa blondi reaching up to 3 cm in length.31

As with any insult that compromises the skin, injuries from arachnid bites or stings have the potential to lead to secondary infections. Opportunistic pathogens may originate from the human or from the invertebrate. The microflora of the mouthparts of various captive giant spider species have been described, and a range of Gram-positive and Gram-negative bacteria found: Staphylococcus aureus, Staphylococcus spp., Bacillus megaterium, B. subtilis, B. cereus, Pseudomonas diminuta, P. aeruginosa, P. fluorescens, P. cepacia, Pseudomonas spp., Aeromonas hydrophilia, Acinetobacter calcoaceticus, Micrococcus varians, M. mucilaginosus, Coryneforms, and other Enterobacteriaceae.29,45 At least three of these bacteria (S. aureus, P. aeruginosa, A. hydrophilia) are known human pathogens.45 Infections with oral nematodes from the family Panagrolaimidae have been reported in giant spiders, and some species of this family are known to cause zoonotic disease.31

Giant spiders carry another potential risk to humans, their urticating hairs. As mentioned previously, New World species have urticating hairs on their opisthosomas. When alarmed, the spiders can brush off the hairs with their hind legs, which allows them to become airborne. Exposure to these hairs can occur from direct contact with the spider or indirectly from the animal's environment, especially when cleaning and replacing substrate. Each urticating hair is covered by hundreds of small hooks and can cause severe itching when it makes contact with the skin.33 Cooke et al.2 have shown that these hairs can embed themselves to a depth of 2 mm in human skin. A severe skin reaction has been observed by the authors in a colleague working with the Theraphosa blondi colony at the Louisiana State University School of Veterinary Medicine. This individual was changing the substrate in the cages and had indirect contact with the spiders. A severe, intense, pruritic cycle ensued that affected the hands and forearms (Figure 3-24). The reaction lasted for 14 days. A single case of papular dermatitis with edema resulting from urticating hair exposure has also been described.46

Although dermatologic exposure to urticating hairs is a self-limiting condition, urticating hairs can be much more harmful to the human eye. The hairs can penetrate the cornea and cause a multitude of symptoms, including panuveitis, iritis, anterior synechiae, vitritis, chorioretinitis, and keratitis. A review of the literature revealed more than a dozen case reports of ophthalmia nodosa (a granulomatous disease) caused by contact with a giant spider. Ocular disease caused by urticating hairs can be serious and chronic in nature. It is recommended that latex or nitrile exam gloves be worn whenever handling or cleaning the enclosure of a giant spider. Eye protection may also be indicated. During the activity, it is best to avoid touching one's face or any area of skin. Washing one's hands afterward is also strongly recommended.

Most scorpions produce a venom that is painful but not dangerous to humans. The exceptions are found in the family Buthidae, which includes Androctonus and Centruroides.3 Death from the neurotoxic venom is generally preceded by convulsions, paralysis of the respiratory muscles, and cardiac failure. Fortunately, some effective antivenins are available.3 Veterinarians working with these species should be preemptive and have antivenins on hand. Clients should be made aware of the potential hazards to owning these animals.

View chapterPurchase book

Read full chapter


(Video) My FIRST snakehead! Tiny pond in a friend's backyard!!


Where are Phoneutria found? ›

Distribution. Phoneutria are found in forests from Costa Rica southwards throughout South America east of the Andes including Colombia, Venezuela, the Guianas, Ecuador, Peru, Bolivia, Brazil, Paraguay, and into northern Argentina.

What spider is the most poisonous? ›

What's the Most Poisonous Spider in the World? Sydney funnel-web spider. According to the Guinness World Records, the Sydney funnel-web spider, Atrax robustus, is the most dangerous spider to humans in the world. Native to Australia, this poisonous spider is found in moist habitats such as under logs or in gardens.

How big is a Phoneutria spider? ›

Phoneutria are impressive spiders reaching body sizes up to 3.5 centimeters and leg spans up to 15 centimeters. They are nocturnal, hunting at night, and hiding in dark places during the day.

What does the venom of the Brazilian wandering spider do? ›

The spider is the Brazilian wandering spider (Phoneutria nigriventer). Bites from that spider are intensely painful and "can cause priapism, a potentially harmful and painful erection that can last for many hours and lead to impotence," states an American Heart Association news release.

Are Phoneutria venomous? ›

wandering spiders, Phoneutria fera and P. nigriventer, are sometimes also referred to as banana spiders because they are frequently found on banana leaves. They have an aggressive defense posture, in which they raise their front legs straight up into the air. Phoneutria are venomous, and their venom is toxic to…

What happens if a Phoneutria bites you? ›

Its bite is extremely painful and causes a number of symptoms such as salivation, sweating, muscular spasms, painful penile erection, and visual problems. Deaths are usually attributed to respiratory failure.

What is the biggest spider? ›

This giant tarantula spans nearly a foot and weighs as much as a baseball, but might not be as terrifying as its reputation suggests. With a leg span nearly a foot wide, the goliath bird-eater is the world's biggest spider. And it has a special defense mechanism to keep predators from considering it as a meal.

Are banana spiders? ›

What are banana spiders? Banana spiders are large spiders found throughout the southeastern United States. Banana spiders receive their name because of the yellow/golden-colored silk they create to make their very large webs which they use to catch flying insects, their main food source.

Can daddy long legs bite? ›

Myth: The daddy-longlegs has the world's most powerful venom, but fortunately its jaws (fangs) are so small that it can't bite you. Fact: That is a full-fledged Urban Legend, with no basis in fact whatever.

Can banana spiders hurt you? ›

Most banana spiders are not dangerous to humans. The Brazilian wandering spider is more venemous than others, but it rarely appears in international shipments. Spiders typically don't bite humans unless held or threatened. A bite from any type of banana spider may cause pain or irritation, but it's not usually deadly.

What is the biggest giant spider? ›

The giant huntsman spider (Heteropoda maxima) is a species of the huntsman spider family Sparassidae found in Laos. It is considered the world's largest spider by leg span, which can reach up to 30 cm (1 ft).

What is the biggest spider in Brazil? ›

The Goliath birdeater (Theraphosa blondi) belongs to the tarantula family Theraphosidae. Found in northern South America, it is the largest spider in the world by mass (175 g (6.2 oz)) and body length (up to 13 cm (5.1 in)), and second to the giant huntsman spider by leg span.

Why is it called wandering spider? ›

According to Sewlal, these arachnids "are called wandering spiders because they do not build webs but wander on the forest floor at night, actively hunting prey." They kill by both ambush and direct attack. They spend most of their day hiding under logs or in crevices, and come out to hunt at night.

What happens if a wandering spider bites you? ›

The bite of a Brazilian wandering spider is extremely painful. It can quickly result in heavy sweating and drooling. The skin around the bite will usually swell, turn red, and get hot. In severe cases, the bite can result in dead tissue or death.

When was the last funnel web death? ›

The male of this species is one of Australia's most dangerous spiders, and is thought to have been responsible for all 13 recorded deaths. While capable of causing death in as little as 15 minutes, no deaths have been recorded since the development of the antivenom in the early 1980s.

Can a spider paralyze you? ›

Loxoscelism is caused by envenoming by spiders of the family Sicariidae. It may present with a stroke due to a severe coagulopathy. The venom of funnel-web spiders also has neurotoxins that stimulate neurotransmitter release, resulting in sensory disturbances and muscle paralysis.

How long do banana spiders live? ›

After the final molt, females can live up to a month, while males live from 2-to-3 weeks. Banana spiders have one generation per year in North America.

What does a banana spider do? ›

Another genus of spiders commonly called banana spiders because they're often discovered in banana shipments, Phoneutria spiders have much in common with Cupiennius. They hail from Central and South America, they're large, hairy and brown, and they also hunt their prey at night instead of using webs.

Are banana spiders poisonous to dogs? ›

How Dangerous Are Banana Spiders? The golden silk orb-weaver has a bite to match its scary appearance. Luckily their venom is not potent enough to seriously injure a healthy adult. It is, however, potent enough to hospitalize an infant, pet, or person with affected allergies or health problems.

What is the smallest spider? ›

Patu digua

Which country has most spiders? ›

Africa. Millions upon millions of wildlife species call Africa home, and it is no different with spiders.

What is the 2 biggest spider in the world? ›

  • #1 Giant Huntsman Spider.
  • #2 Goliath Bird Eater Tarantula.
  • #3 Hercules Baboon Spider.
  • #4 Brazilian Salmon Pink Bird Eater.
  • #5 Grammostola Anthracina.
  • #6 Chaco Golden-knee.
  • #7 Colombian Giant Tarantula.
  • #8 Camel Spider.
5 Aug 2022

Are spider eggs edible? ›

But lest you be tempted to "taste the rainbow," please hold back, as some spider eggs are known to be toxic, according to a study published in August 2017 in the Journal of Arachnology.

Do wolf spiders bite? ›

In general, wolf spiders aren't aggressive, so they'll only bite if they feel threatened. But you may get close to a wolf spider without realizing it and get bitten. If you suspect a spider bite, wash the wound area right away, and use a cold compress to reduce swelling and inflammation.

Are wolf spiders poisonous? ›

Wolf spiders will bite if they are provoked or feel threatened in some way. While their venom isn't poisonous to humans, it can cause harm to pets and livestock. If you have small pets in your home, the wolf spider venom is likely to prove fatal.

What spider gives you a hard on? ›

The Brazilian wandering spider's venom contains a toxin whose unusual erection-inducing qualities have attracted the attention of the pharmaceutical industry. In 2007, researchers found that the bites of the Brazilian wandering spider can cause long and painful erections in human males, along with other symptoms.

Can you eat a daddy long leg? ›

If a human wants to be harmed by these daddy-longlegs, it might be possible if you gather up a humongous bunch of daddy-longlegs and eat them. As Paracelsus told us centuries ago, the dose makes the poison—and even water is poisonous in sufficient quantities.

Are Jumping spiders poisonous? ›

Jumping spiders do possess fangs and produce venom, but the venom is not a medical threat. While they can bite, the jumping spider bite is not poisonous. They are not considered dangerous.

How big is a wolf spider? ›

Ranging in size from half an inch to over two inches, these large, hairy spiders may be the fuel of nightmares for some people. Foreboding as wolf spiders may seem, they are equipped with some amazing adaptations and really quite beneficial.

Do banana spiders have venom? ›

For example, the Brazilian wandering banana spiders, genus Phoneutria, are among the most venomous spiders on Earth and its bite can be deadly to humans, especially children.

Are black widows poisonous? ›

The black widow spider (Latrodectus genus) has a shiny black body with a red hourglass-shape on its belly area. The venomous bite of a black widow spider is toxic. The genus of spiders, to which the black widow belongs, contains the largest number of venomous species known.

Can spiders have 12 legs? ›

Like true spiders, some sea spiders have eight legs. But not all do. “Some have 10 and even 12 legs,” says Leese.

What is the biggest spider in the world in 2022? ›

The largest spider in the world is Theraphosa blondi, commonly known as the Goliath birdeater, according to National Geographic. This tarantula can reach up to 11 inches in length and weigh 6 ounces; this size is big enough to cover a dinner plate, says Guinness World Records.

What is the 4th biggest spider in the world? ›

The fourth biggest spider in the world is the Brazilian giant tawny red tarantula, which lives in Brazil, Uruguay, Paraguay, and Argentina. The fourth leg on this brown spider can be up to 2.3 inches long while its whole body is only 2.5 inches long.

How big is the Amazon spider? ›

Tarantulas are the largest spiders in the world, and the Amazonian variety is the largest of them all. Anyone visiting the Amazon rainforest can be sure to spot them. In fact, it'd be hard not to – some adults can measure up to 13 inches across!

Is there a spider bigger than a human? ›

The giant huntsman spider can grow to be 12 inches across, which is larger than a human head. Let's take a look at some common questions about one of the world's largest spiders.

What spider hides in bananas? ›

Cupiennius spiders are often found in banana shipments to North America but are harmless. Cupiennius spiders are virtually restricted to Central America or at least the ones that end up in banana shipments come only from Central America.

How many types of wandering spiders are there? ›

Wandering spider

What is the purpose of a spider? ›

The vast majority of spiders are harmless and serve a critical purpose: controlling insect populations that could otherwise devastate crops. Without spiders to eat pests harmful to agriculture, it's thought that our food supply would be put at risk.

What do wandering spiders eat? ›

As for the prey of this spider, it can be almost anything. This spider will eat crickets, large insects, mice/other small mammals, lizards, or anything else they can find crawling along the rainforest floor that isn't too big for them to kill.

Can a spider bite you in bed? ›

“Contrary to popular lore, spiders (which are not insects but I guess could count as “bugs”) do NOT bite people in their sleep. It is extremely rare for a spider to bite someone at all…

Do spiders flirt? ›

A male seeks out a female in her web and then sort of moves in. He will walk around on her web, vibrating his legs on the web and giving brief vibratory touches to her with his legs when they meet. In some species he builds a special canopy in a corner of her web.

What bit me in my sleep? ›

Bug Bites While Sleeping

Getting bug bites at night, especially when you're asleep is no fun. There are three likely sources for bug bites at night — spiders, mosquitos or bed bugs. Spiders and mosquitos usually find their way into your home — and into your bedroom — during the warmer months.

Are spider webs toxic? ›

Spiderweb Is Slathered in Neurotoxins That May Subdue or Kill Prey, Scientists Say. As if spiderwebs weren't already icky enough, some spiders have gone and made them poisonous as well, a new study reveals. The unique properties of spiderwebs have long fascinated materials scientists.

What to do if a funnel web bites you? ›

What should I do if am bitten by a funnel web spider? As most of the bites tend to be on the hands and feet, a pressure immobilisation bandage should be applied to the bitten limb. Seek urgent medical attention at hospital once the bandage is applied.

Can you survive a funnel-web spider? ›

All funnel-web spider bites should be treated as potentially life-threatening, even though only approximately 10% to 15% of bites are venomous. Since the venom from the funnel-web spider bite is highly toxic, all species should be considered potentially dangerous.

Where can the Joro spider be found? ›

Where is the Joro spider found? The Joro is in the northern part of Georgia and has spread into the very southern counties of Tennessee adjacent to the northern state line of Georgia, and in the very western portion of South Carolina, also bordering Georgia.

Where can banana spiders be found? ›

Brazilian wandering spiders live in South and Central America. Sometimes, these spiders make their way into other countries on fruit shipments. However, these pests mostly live in the Amazon, where they see little human contact. Cupiennius banana spiders are more widespread in Central America.

Where can radioactive spiders be found? ›

Radioactive creatures do exist, notably in the forests surrounding the damaged Chernobyl nuclear reactor in the Ukraine, as well as in Sweden and Finland, where plumes of radiation fell after the 1986 disaster.

Where can you find a banana spider? ›

Banana spiders receive their name because of the yellow/golden-colored silk they create to make their very large webs which they use to catch flying insects, their main food source. These spiders are often found in forests, open wooded areas, in fields, along wooded trails, and at the edges of clearings.

What kills a Joro spider? ›

The most effective insecticides for Joro spiders are those containing bifenthrin, deltamethrin, or lambda-cyhalothrin. Insecticides with these ingredients will quickly kill the spider and its eggs and prevent further infestations.

What happens if a Joro spider bites you? ›

Because of their small mouth parts, the Joro has been deemed as harmless and typically not a safety concern. If someone were to be bit, it would be comparable to a bee sting. Though their large size and golden webs can be a nuisance and scary to unknowing individuals, there is no need to worry.

How long do Joro spiders live? ›

The Joro spider's lifespan is typically around 12 months. An adult female spider lays its eggs in the fall. One egg sac can contain between 400 and 1,500 eggs. Baby Joro spiders hatch in the spring or early summer.

What is the real name of a banana spider? ›

Nephila clavipes is a large size and brightly colored species of the orb-web spider family. Nephila comes from Ancient Greek, meaning fond of spinning. Most people call them banana or golden silk spiders, but other common names are calico spider, giant wood spider, golden silk orb weaver and writing spiders.

Why are they called banana spider? ›

Brazilian wandering spider

nigriventer. This spider is also known as the banana spider because people have occasionally found it in shipments of bananas. Other names include the armed spider and the huntsman spider.

Can a radioactive spider change your DNA? ›

At worst, they're likely to cause painful reactions or tissue death around the site of the bite. They do not, unfortunately, transmit any superpowers or modify your DNA in any way.

Who ate the radioactive spider? ›

Ambrose, King told Peter the rest of his tragic tale. He wanted the same abilities granted to Peter and crept back into the exhibit looking for that same radioactive spider to bite him. However, the spider was not cooperating, so Carl simply ate the spider.

Do radioactive spider bites hurt? ›

Not much. Or rather, not much aside from the usual symptoms of being fanged by an arachnid: itching, redness, soreness, and sometimes -- depending on the type of spider -- more serious symptoms, including unconsciousness or death. The radioactivity, though, would be irrelevant. The world is awash in radiation.

Do banana spiders change colors? ›

These webs are incredibly strong with intricate designs. Female banana spiders weave the giant webs in forest areas, often along walking trails. They can even adjust the silk's yellow hue to match the area's sunlight conditions, making the web difficult to see.

Can banana spiders bite? ›

Fortunately, this spider species is exceptionally infrequently encountered in the U.S. Spiders possessing the common name banana spiders found in the U.S. are able to bite, but their bite is not as harmful or painful as bites from other spiders, like the brown recluse or black widow spider.

Are banana spider poisonous? ›

Banana spiders may look intimidating, but they're actually timid and not considered dangerous. Though they aren't poisonous, their bite can be painful.


1. Priapism - EMPIRE Urology Lecture Series
(EMPIRE Urology)
2. So Far
(Basic Need - Topic)
3. Using DNA metabarcoding to study dietary interactions
(Biologia - Oportunidades e curiosidades)
4. Hãy coi chừng nếu loài Nhện to bằng con người - Sợ nện không nên xem
(Hiểu Biết Hơn Mỗi Ngày)
5. Upc medicina - INFECTOLOGIA 2
(Upch Med Caj)
Top Articles
Latest Posts
Article information

Author: Jamar Nader

Last Updated: 01/07/2023

Views: 6078

Rating: 4.4 / 5 (55 voted)

Reviews: 94% of readers found this page helpful

Author information

Name: Jamar Nader

Birthday: 1995-02-28

Address: Apt. 536 6162 Reichel Greens, Port Zackaryside, CT 22682-9804

Phone: +9958384818317

Job: IT Representative

Hobby: Scrapbooking, Hiking, Hunting, Kite flying, Blacksmithing, Video gaming, Foraging

Introduction: My name is Jamar Nader, I am a fine, shiny, colorful, bright, nice, perfect, curious person who loves writing and wants to share my knowledge and understanding with you.