Are Golden Orb Weaver Spiders Poisonous? Unraveling the Truth

folder_openArachnida, Araneae
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Golden orb weaver spiders are a fascinating species known for their large size and intricate web designs.

These spiders can be found in various parts of the globe and are often spotted in gardens and forests.

Despite their intimidating appearance, many people wonder if they are poisonous or pose a threat to humans.

They do have venom, but it is typically harmless to people. While their bite may cause some localized pain, swelling, or redness, it’s rarely a cause for serious concern.

However, individual reactions may vary, and some people might experience more severe symptoms. It’s essential to remember that golden orb weaver spiders are beneficial creatures, as they help control the population of insect pests.

So, the next time you encounter one of these magnificent spiders, take a moment to appreciate their beauty and ecological importance, knowing that they pose little risk to us.

 

Are Golden Orb Weaver Spiders Poisonous
Golden Orb Weaver

 

Are Golden Orb Weaver Spiders Poisonous?

Venom and Fangs

Golden orb weaver spiders have venom stored in their glands and fangs to subdue their prey. However, their venom is not lethal to humans. Their fangs are quite small and less capable of penetrating human skin.

Numbness and Pain

If a golden orb weaver spider bites a person, it might cause mild symptoms like:

  • Localized pain
  • Numbness
  • Swelling

These symptoms usually go away within a few hours.

Treatment and Medical Attention

When bitten by a golden orb weaver spider, the treatment usually involves:

  • Cleaning the bite area with soap and water
  • Applying a cold compress to reduce swelling

In most cases, no further medical attention is required.

Harmless to Humans

Although golden orb weaver spiders are venomous, they are generally harmless to humans. They are not aggressive and will only bite in self-defense. The risk of allergies or severe reactions to their bites is very low.

Self-Defense

Golden orb weaver spiders prefer to escape from threats rather than attack. They use their large webs to create a barrier between themselves and potential danger.

To summarize:

Feature Golden Orb Weaver Spider
Venomous Yes
Poisonous to humans No
Aggressive No
Bite symptoms Pain, numbness, swelling
Medical attention necessary Rarely
Self-defense mechanism Escape, web as a barrier

Golden Orb Weaver Spider: Identification and Habitat

Physical Appearance

Golden orb weaver spiders belong to the genus Trichonephila and are known for their striking appearance. Some key features include:

  • Large size, with females up to 3 inches long
  • Abdomen marked with bright colors, usually yellow or orange
  • Legs covered with hair-like structures
  • Cephalothorax region with a pattern of stripes or dots

They are often confused with other large spiders like the black widow or banana spiders, although there are differences in colors and patterns.

Behavior and Habitat

These spiders are diurnal species and are known for their strong, distinctive webs. They are a type of orb-weaver spider and create bold, circular web patterns. Their behavior includes:

  • Building large webs that are up to 4 feet in diameter
  • Feeding on grasshoppers, flies, and other small insects
  • Sensing vibrations via sensory organs in their legs, called tarsi

Orb weaver spiders can mainly be found in a variety of habitats such as forests, gardens, orchards, and near water sources.

Worldwide Distribution

Golden orb weaver spiders have a wide geographic distribution across different continents. They are found in:

  • North America, specifically in the Southeast United States
  • Central and South America, stretching from Argentina to Peru
  • The Asia-Pacific region, including countries such as India, China, Vietnam, Indonesia, Taiwan, Malaysia, and
    Myanmar
  • Africa, with sightings reported in areas like Guyana
  • Oceania, with some species like the nephila and the araneidae occurring in Australia

Golden orb weaver spiders adapt well to various environments and climates, which contributes to their widespread existence.

Diet, Webs, and Prey

Food Preferences

Golden orb weaver spiders primarily feed on various insects. Some examples of their preferred prey include:

  • Grasshoppers
  • Flies
  • Mosquitoes
  • Ants
  • Moths
  • Beetles
  • Locusts
  • Cicadas
  • Wasps

These spiders are not known to be picky eaters, preying on a range of diverse and available insects.

Web Characteristics

Golden orb weaver spiders are famous for their intricate webs. The webs display unique characteristics, such as:

  • Large size: Webs can reach up to 4 feet in diameter
  • Bright yellow color: The silk threads carry a golden hue
  • Strong: The silk is known to be very sturdy

Prey Trapping

The spiders use their webs to actively trap prey. When an insect gets caught, the golden orb weaver takes several steps to secure its meal:

  1. Immobilize the prey: The spider delivers a paralyzing bite
  2. Wrap the prey: Using silk, the spider wraps its catch securely
  3. Storage: The bound prey is saved for later consumption

Golden orb weaver spiders are also known to tackle prey larger than themselves, demonstrating their impressive hunting abilities.

Comparison Table: Golden Orb Weaver vs. Wasp

Feature Golden Orb Weaver Spider Wasp
Diet Various insects Insects and some plant-based food (nectar)
Web Builds large, bright yellow webs No webs; some species build papery nests
Prey Trapping Paralyzes, wraps, and stores prey in webs Injects venom to paralyze, brings prey to nest for larvae to consume
Predators Few natural predators; occasionally other spiders Various predators, including birds, reptiles, and other insects

Overall, golden orb weaver spiders are effective predators that use their unique webs and hunting techniques to consume a diverse diet of insects.

A golden orb weaver eating a different spider

Reproduction and Breeding

Mating Rituals

Golden orb weaver spiders have unique mating rituals. Males approach females with caution, often plucking the web to signal their presence. This helps in preventing females from treating them as prey.

Egg Sacs and Offspring

  • Females create silk egg sacs to protect their eggs
  • Multiple egg sacs can be produced each breeding season
  • Each egg sac contains hundreds of eggs
  • Offspring emerge as tiny spiderlings

Pros and Cons of Golden Orb Weaver Spiders’ Reproduction

Pros:

  • A large number of offspring increases survival chances
  • Protective egg sacs ensure the safety of eggs

Cons:

  • Many offspring may not survive to adulthood
  • Competition for resources among siblings

Comparison: Golden Orb Weaver Spider vs. Yellow Sac Spider

Feature Golden Orb Weaver Spider Yellow Sac Spider
Body length Up to 1 inch 0.25 – 0.5 inch
Egg sac location Web or nearby vegetation Hidden in Silk retreat
Number of eggs Hundreds per sac Smaller count

The Benefits of Golden Orb Weaver Spiders

Natural Pest Control

Golden orb weaver spiders, also known as Nephila plumipes, belong to the family Araneidae. These spiders are beneficial in gardens because they prey on pests such as beetles, arachnids, and even birds.

  • They help reduce the need for chemical pest control.
  • They won’t harm pets or humans, as they aren’t considered poisonous.

Some examples of pests they control in gardens include:

  • Various species of beetles
  • Smaller arachnids like other spiders and mites
  • Small flying insects, which can damage plants

Silk Uses in Gardens

Golden orb-weaving spiders produce silk that’s unique and useful. People can take advantage of this silk in gardens, strengthening plants’ support or using it as a natural material for garden art.

  • The silk is strong and durable
  • It can be collected without harming the spider

Here’s a comparison table contrasting the golden orb weaver silk with other silk types:

Silk Type Strength Durability Collection Method
Golden Orb Weaver High High Non-harmful
Common Garden Spider Medium Medium Non-harmful
Domesticated Silkmoth Low Low Harmful (kills)

By encouraging golden orb weaver spiders in gardens, you can reap the benefits of natural pest control and utilize their remarkable silk.

It’s an eco-friendly way to maintain a healthy garden while appreciating the beauty these spiders bring to the environment.

Human Interaction and Safety

Reducing Fear of Spiders

Golden orb weavers, like many other spiders, are non-aggressive towards humans. In fact, these spiders play a crucial role in our environment, controlling pests by preying on insects.

To help reduce your fear of spiders, it is essential to understand that most encounters with these creatures are not dangerous:

  • Rarely bite humans
  • Help maintain a balanced ecosystem
  • Provide a natural form of pest control

By appreciating their vital role, we can learn to co-exist with these arachnids and diminish our fear.

When to Seek Help

While golden orb weaver bites are rare, it is important to recognize when you need medical assistance. Typical symptoms of a spider bite include:

  • Redness
  • Swelling
  • Pain at the bite site

However, some severe symptoms warrant immediate care:

  • Difficulty breathing
  • Intense pain
  • Rapid heart rate
  • Severe swelling

Remember, it is always best to consult a doctor if you suspect a spider bite and exhibit unusual symptoms.

Conclusion

In conclusion, the beautiful golden orb weaver spiders may appear intimidating, but they are generally harmless to humans.

They have intricate web designs which help them to capture prey. This trait makes them beneficial for natural pest control.

Yes, these insects have venom which is capable of causing mild symptoms. However, the fangs are small and not strong enough to penetrate the human skin.

Understanding their behavior and ecological importance can help us coexist with these creatures and appreciate their beauty.
However, if the bites trigger an allergic reaction, you must seek immediate medical help.

Footnotes

  1. Beneficial Arthropod Alert – Orb Weaver Spiders

  2. Golden orb weaver spider

  3. Spiders | Washington State Department of Health

 

Delta Flower Scarab in Orbweaver's web
Golden Orbweaver eats Delta Flower Scarab
Egg Sac from a Golden Orbweaver

Golden Orbweaver Egg Sac

Golden Orbweaver with Egg Sac

 

 

Authors

  • Bugman

    Bugman aka Daniel Marlos has been identifying bugs since 1999. whatsthatbug.com is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

    View all posts
  • Piyushi Dhir

    Piyushi is a nature lover, blogger and traveler at heart. She lives in beautiful Canada with her family. Piyushi is an animal lover and loves to write about all creatures.

    View all posts
Tags: Orb Weaver Spiders

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7 Comments. Leave new

  • I’ve got one of these in my front yard. It’s been doing a brisk bug-catching business since it set up shop. Today I find it’s caught a dragonfly in its web. A bug-catcher caught a bug-catcher. Oh, well.

    I’ve noticed these spiders will shake their webs if they feel threatened. It can be a tad dizzying to watch.

    Reply
  • Ms. G in MoTown NC
    September 16, 2009 3:52 pm

    Is this spider poisonous, I have one in my back yard and I just want to make sure it isn’t going to harm my kids.

    Reply
  • German Quintero
    May 6, 2013 6:52 pm

    Quisiera saber si este tipo de aran’a que en EE UU se conoce como banana spider es peligrosa o venenosa .
    Gracias.
    German Quintero

    Reply
    • Hola German,
      If our understanding of Spanish is correct, we believe you are inquiring if the Banana Spider from the U.S. (Estados Unidos) is dangerous or venomous. Nearly all spiders have venom and a large Banana Spider, Nephila clavipes, could bite a person, but the bite is not considered dangerous. There might be pain, sensitivity and local swelling if a bite occurs.

      Reply
  • German Quintero
    May 6, 2013 6:52 pm

    Quisiera saber si este tipo de aran’a que en EE UU se conoce como banana spider es peligrosa o venenosa .
    Gracias.
    German Quintero

    Reply
  • Sabrena Van nurden
    September 23, 2018 6:54 pm

    How long do the spiferlings stay inside the egg sac? I found one recently and I can’t wait to see the spiderlings emerge!

    Reply

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