The golden orb weaver is a fascinating spider known for its intricate, large webs that shimmer like gold in the sunlight. This species, scientifically named Trichonephila clavipes, can be found in the southeast United States through Argentina and Peru, and is well-adapted to a diverse range of habitats. Their unique life cycle involves several stages and showcases their remarkable adaptability.
In the early stages of their life cycle, the golden orb weaver develops from an egg into a tiny spiderling. As they grow, they undergo several molting phases to accommodate their increasing size. Adult females can reach up to 3 inches long, while males are smaller, with an interesting sexual dimorphism. The golden orb weaver is prized for its ability to capture various small insects, such as grasshoppers and flies, in its enormous web.
To better understand the golden orb weaver, it is important to explore the various aspects of their life cycle, from egg to adult spider. In doing so, one can appreciate the adaptations and skills this fascinating arachnid possesses, which enable it to create spectacular webs and thrive in its environment.
Golden Orb Weaver Life Cycle
Golden orb weavers’ life cycle begins with the female spider laying her eggs in an egg sac. She creates a silk pouch and deposits hundreds of eggs inside it. The egg sac provides protection against predators and harsh environmental conditions.
- Shape: roughly round or oval
- Color: yellowish or pale green
- Size: up to 2 cm in diameter
Growth and Development
After few weeks, the eggs hatch, and tiny spiderlings emerge. They undergo several stages of development, known as instars, molting their exoskeleton multiple times to grow.
- Most orb weavers last for one season
- Peak in size and activity during late summer and fall
- Females are larger than males (up to 3 inches)
During their life cycle, golden orb weavers spin large, intricate webs to catch prey.
- Diameter: up to 4 feet
- Tensile strength: greater than steel (by weight)
|Golden Orb Weaver
|Other Orb Weavers
|Grasshoppers, flies, small insects
|Insects, including mosquitoes, moths
|Southeastern United States to Argentina
|Gardens, fields, forests
|Web size and Strength
|Large (up to 4 feet), strong
|Smaller, less tensile strength
Size and Color Pattern
The Golden Orb Weaver spider (Trichonephila clavipes) can grow up to 3 inches long. They are known for their vibrant color patterns, featuring a mix of yellow, gold, and black hues on their bodies and legs.
- Adults have an elongated abdomen
- Legs are striped with black and yellow
Males and females show significant differences in size and appearance.
- Males are smaller, usually around 0.24 inches long
- Females are larger, up to 3 inches long
The color patterns also vary between the sexes:
- Males: Predominantly brown or black
- Females: Bold black and yellow patterns
Golden Orb Weavers have evolved unique features to help them survive in their environment.
- Web-spinning abilities: Produce golden silk to create massive webs up to 4 feet in diameter
- Excellent eyesight: Multiple sets of eyes for detecting prey and predators
- Sensitive leg hairs: Monitor vibrations in the web for prey movement
Comparison Table: Male vs. Female Golden Orb Weaver Spiders
|up to 3 inches
In summary, the Golden Orb Weaver spider has distinctive physical characteristics such as size, color patterns, and adaptations that set it apart from other spiders. Males and females display sexual dimorphism in both size and color patterns, while the species as a whole exhibits unique features that aid in their survival.
Webs and Prey
Orb Webs and Silk
Golden orb weaver spiders are known for their impressive orb webs, which are built using strong golden silk. This silk is not only visually striking, but also provides these spiders with some unique adaptations that help them catch prey effectively. Here are some features of golden orb weaver silk:
- Strong and elastic
- Golden in color
- Excellent for capturing prey
The webs these spiders create can be quite large, sometimes reaching 4 feet in diameter, and are constructed in a variety of habitats, such as gardens, fields, and forests.
Types of Prey
Golden orb weaver spiders feast on a diverse range of insects, with some of their most common prey including:
These spiders use their orb-shaped webs to catch prey that gets trapped within the sticky silk. Once ensnared, the golden orb weaver quickly immobilizes its prey by injecting it with venom and then wraps it securely in silk threads.
Here’s a brief comparison table of the characteristics of some common prey for golden orb weavers:
Golden orb weavers have evolved specific adaptations and behaviors to optimize their hunting efficiency. These traits help them make the most of their orb webs and silk, contributing to their success in various environments.
Species and Distribution
- Nephila species: These spiders are commonly known as golden orb weavers due to their golden webs. They belong to the genus Nephila, which is part of the larger family of orb-weaver spiders.
- Trichonephila clavipes: This is a specific species of golden orb weavers, also known as the banana spider, found in the southeastern United States, Central America, and South America. They are known for their large size, with some reaching up to 3 inches in length.
Golden orb weavers have a wide distribution, with various species found across different regions. Here’s a table comparing two notable species and their ranges:
|Australia, Asia, and the Western Pacific
|Southeastern United States, Central America, Argentina, & Peru
- Nephila species are prevalent in the tropics and subtropics, with many being found in regions such as Australia, Asia, Africa, and the Americas.
- Trichonephila clavipes, or the banana spider, is primarily found in the southeastern United States, Central America, and South America, including countries like Argentina and Peru.
To summarize, golden orb weaver spiders, belonging to the genera Nephila and Trichonephila, are present in different parts of the world, with variations in sizes, features, and colors. They have a wide distribution, which allows them to thrive in a range of habitats, primarily in tropical and subtropical regions.
Habitat and Behavior
The Golden Orb Weaver (Trichonephila clavipes) spider, a member of the family Araneidae, can be found in the southeast United States through Argentina and Peru. They prefer habitats such as:
- Coastal areas
These spiders are known for their large and strong webs, which they use to catch prey like grasshoppers and flies.
Golden orb weavers have been successful in adapting to urban environments. They’re known to make their homes in parks and gardens. Their presence in urban areas provides some benefits:
- Reducing insect population
- Serving as a natural pest control
However, there are also some drawbacks:
- Risk of bites to humans (though not fatal)
- Unwanted webs in public spaces
|Increased risk from predators
|Urban (parks and gardens)
|Access to reliable food sources
|Risk of human interference
Key features of the Golden Orb Weaver:
- Large, palm-sized body
- Strong, golden silk webs
- Distinctive yellow, brown, or reddish color
- Adaptability to both natural and urban habitats
- Length: up to 3 inches
- Diet: grasshoppers, flies, and small insects
- Predators: birds, wasps, and larger spiders like the Argyrodes
- Habitat: forests, swamps, coastal areas, and urban environments
In conclusion, the Golden Orb Weaver is a fascinating and adaptable spider that can be found in various habitats. While they are more common in natural environments, they have also been successful in adapting to urban areas.
Interaction with Humans
Spider Silk Uses
Golden orb weavers produce golden silk which has unique properties. This silk is:
In ancient Greece, spider silk was used to make fabric. This fabric was:
Today, researchers study spider silk for potential applications such as:
- Biomedical materials
- Strong fibers for textiles
- Composite materials
Safety and Spider Bites
Golden orb weavers have venom, but their bites are usually not dangerous to humans. When threatened, they display various defenses:
- Dropping from the web
Comparing golden orb weavers to other spiders such as mastophora (bolas spiders):
|Golden orb weaver
|Mastophora (bolas spider)
|Aggressive when threatened
Golden orb weaver bites might cause:
- Mild pain
If bitten, you should:
- Clean the area
- Apply ice
- Seek medical advice if symptoms worsen
Overall, golden orb weavers are fascinating creatures with potential uses for their silk. Humans should appreciate and respect their presence in our environment.
Classification and Evolution
The Golden Silk Orb-Weaver belongs to the family Nephilidae and is scientifically known as Trichonephila plumipes. Here’s a brief overview of its classification:
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Arachnida
- Order: Araneae
- Family: Nephilidae
- Genus: Trichonephila
- Species: T. plumipes
The orb-weaving spiders date back to the Jurassic period and make up over 25% of the known living spider species 1. These spiders exhibit diverse web designs, with the wheel-shaped orb web being the most primitive. The Golden Silk Orb-Weaver, a representative of this group, is known for creating large and intricate webs.
Some key features of the Golden Silk Orb-Weaver include:
- Body size: Up to 3 inches long
- Distribution: Southeast United States through Argentina and Peru
- Diet: Feeds on grasshoppers, flies, and other small insects2
The evolutionary relationship between the Golden Silk Orb-Weaver and other related species can be better understood by comparing them to the members of the Sphecidae family.
|Golden Silk Orb-Weaver (Nephilidae)
|Sphecidae (Digger Wasps)
|Eight legs, two body segments
|Six legs, three body segments
|Forests, parks, gardens
|Egg cases in hidden locations
|Lay eggs in nests
|Catch prey using webs
|Forage for food
In conclusion, the Golden Silk Orb-Weaver is a unique and fascinating species with a rich evolutionary history. Studying its classification and characteristics helps us understand the diversity and complexity of the spider world.
Over the years, our website, whatsthatbug.com has received hundreds of letters and some interesting images asking us about these insects. Scroll down to have a look at some of them.
Letter 1 – Golden Orb Weaver
In the interest of sharing – picture from Ingomar, Mississippi
This may end up in the trash, and that’s OK. I don’t need an explanation of what he is – they are all over the place in Virginia where I live. This is my reminder to never leave home without a camera. The attached picture has not been altered; this guy was hanging out on the front porch of my cousin’s home in Ingomar, Mississippi. In 2005 I spent a week with her while she was undergoing cancer treatment. The backdrop is a plaque on the wall beside the front door just below a porch light, and was a gift from another cousin so the picture has even more sentimental value. It just happens to be the same color and similar pattern as the garden spider’s head. Three years later we both still use this picture as our Windows desktop wallpaper. Date: October 11, 2005 Place: Ingomar, Mississippi
This photo of Argiope aurantia, the Golden Orb Weaver, or Yellow Garden Spider, or Black and Yellow Argiope, or Writing Spider, or Yellow Garden Orbweaver, is just the type of quirky photo that appeals to our aesthetic. If we ever do another calendar, it would be exactly the type of image we would select. Though we get many technically gorgeous photos for our site, we really prefer those that cross the line from mere identification documents to artistic representations. We can only wonder how many traveling sales persons, proselytizers and neighbors turned away in horror at the front door.
Letter 2 – Golden Orb Weaver
I happened on your site while trying to search for the type of spider I found in my garden last year (actually, in the plants that grew out of the compost pile). I’ve never seen a spider like this in this area before (Northern Massachusetts) or since. I don’t have any good size comparison in the pictures I got except that those are pumpkin leaves he’s (she’s?) on. I would estimate the diameter of the circle formed by the legs was about 3 inches. anyway, if you could identify this spider for me, I’d appreciate it.
We have lots of photos and information on the Golden Orb Weaver, or Yellow Garden Spider, Argiope aurantia or Miranda aurantia, on our two spider pages. We agree that this spider is always startling to see, but though it can bite painfully, it seldom does. Your female looks very mature.
Letter 3 – Golden Orb Weaver
First, let me compliment your website. Since I’ve moved to the South (I’m from California), I’ve seen some crazy bugs that are HUGE and your website has helped. This past summer we’ve moved from Louisiana to College Station, TX, and this spider was ready to welcome us on our apartment balcony. It was frighteningly huge. Is it the Golden Orb Weaving spider? It is a picture of the belly, I think. I didn’t have the heart (or nerves) to try and flip it over to get a picture to see the other side of it. Thanks!
Your spider is definitely one of the Orb-Weaving Argiopes, probably Argiope aurantia which sometimes goes by the common names Black and Yellow Argiope or Golden Orb Weaver, and occasionally Orange Orb-Weaver which gives some indication of the variability of the coloration and markings of individual specimens. They are distributed throughout the U.S. including California. They are truly impressive spiders.
Letter 4 – Golden Orb Weaver
A beautiful Creature
Dear Bugman [Daniel]:
Thank you so much for your informative website. Thanks to your insight, I can now sleep at night, and continue to watch this amazing creature for as long as she wants to inhabit our garden. My 4 year old daughter pointed it out to her mother while weeding the garden recently. We were aprehensive until I found that the Golden Orb Weaver in our garden is harmless. Her abdomen would almost cover a nickle I guess and she is about 1 1/2" long when her legs are arranged top to bottom. I hope you enjoy the attached photo. This is the first time we have encountered this spider in our 5 years in this residence. We live in the rural area of Georgetown, Ontario, Canada about 25 miles west of downtown Toronto. By the way, do I have to be worried about being overrun with weaver babies??? Many thanks, and kindest regards,
Peter J. Solomon
Thank you for your beautiful letter and gorgeous photo. I am so happy you spared the lovely female Argiope aurantia. I don’t think you need to fear being overrun by spiders. We had a female in our garden several years ago who laid eggs, and we haven’t had a mature specimen since. The spiders balloon away after hatching, catching the wind with silk lines and flying away, dispersing great distances. The adults, on the contrary, are not mobile, and will continue to make a web in the same vacinity night after night.
Letter 5 – Golden Orb Weaver
Hi Bugman! I was able to identify this critter using your site and thought I’d send you a picture. This is the biggest spider I’ve ever seen in my life, it’s even bigger than some tarantulas I’ve seen! I would estimate her size as at least 4 inches not including legs. I found her behind an abandoned house in Weir, TX. Directly above the spiders web was a large paper wasp nest that I suspect was a food source, but how does the spider avoid getting stung?
Great photo. I’m sure the spider’s long legs help prevent the stinging. The belly is a weak area, but if the spider’s legs are long enough, the belly never gets close enough to the ensnared wasp.
Letter 6 – Golden Orb Weaver
okay, just one more thing
We found this garden spider bloated with eggs this summer and thought you may be able to use the photo. Not too clear, but the size is so impressive. Here’s one that is more clear, but doesn’t show her mass so well. Very pretty though. I like how the shadow gives it a menacing look.
Hi again Kerra,
That is one large Golden Orb Weaver, Argiope aurantia.
Letter 7 – Golden Orb Weaver
Just one more…..
Your site is GREAT! Hope you like just one more picture of your spider of the month (August) taken in my back yard. Thanks to your site, we are giving him/her ample room to enjoy life. Thanks for such a great resource!
DS in Venice, FL
Thanks for sending in an artful image of a Golden Orb Weaver.
Letter 8 – Golden Orb-Weaver
Fri, Oct 10, 2008 at 5:30 PM
I found this spider yesterday outside my bedroom window. It’s not one that I’ve seen where we live before (SW Missouri) – hoping you can identify it!
Argiope aurantia, the Golden Orb-Weaver, has numerous common names, including Yellow Garden Spider, Yellow Garden Orbweaver, Writing Spider and Black & Yellow Argiope. Here is a BugGuide discussion on the common names for this species. Your photo nicely illustrates the stabilimentum, the zig-zag structure in the web that gives rise to the common name of Writing Spider.
Letter 9 – Golden Orb Weaver
Black spider with Black and white banded legs.
Sat, Oct 25, 2008 at 12:29 AM
I found two spiders in my house today.. (so-cal) I’ve found them outside before.. we also have black widows around.. anyways, this spider is black with what looks like black and yellow (or white) bands on it’s legs.. the legs are pretty long.. and it’s not hairy.. it’s not that big.. smaller than the widows.. im not sure what it is or if it’s poisionous.. please let me know.. it’s not that picture, it just resembles it.. maybe a little smaller..
Geographic Location of Bug: Kitchen and Bathroom..
With all due respect, “kitchen and bathroom” was not really what we had in mind on our form that requests a geographic location. It would be far more helpful to know the name of the city or state or country where you found the spider, but upon rereading your letter, we see that you indicate Southern California. Your spider is a relatively easy identification for us. This is Argiope aurantia, a Golden Orb Weaver, but it also has numerous other common names. All spiders are poisonous, but the Golden Orb Weaver does not pose a threat were it to bite. Since it is a large spider, a bite might be painful, but it would result in little more that slight swelling and irritation. Upon inserting your photo into this posting, we realized that the individual spider in the photo was not photographed in your kitchen or bathroom. That may just nullify our identification. Sending a photo other than the actual specimen you want identified is a dicey venture. Also, we only like to post images from the originators of the photos, because that implies permission to post. We are really hoping the internet police don’t come knocking at our door (or flooding our website with demands to remove the image at once) but we will tempt fate since we invested so much time in creating this posting. We also were happy as we just posted an image of a Gambian Golden Silk Spider and spoke about the Golden Orb Weaver in that posting.
Letter 10 – Golden Orb Weaver eats Grasshopper
I stumbled upon this spider when I was searching for Monarch butterfly Caterpillars. A black-and-yellow argiope with a grasshopper dinner. Could you ID the grasshopper for me? I also thought you might like the picture.
This Grasshopper is in the family Acrididae, but it would take a far better expert than we are to identify that grasshopper wrapped in spider silk to the species level. Despite failing you in the identification, we do love your food chain photo of a Golden Orb Weaver.
Letter 11 – Golden Orb Weaver from Australia
Golden Orb Weaver
Hope you like this Golden Orb Weaver female from Queensland Australia.
Gold Coast, Queensland. April 29 2007
Hi again Trevor,
The common name, Golden Orb Weaver, will probably get us in trouble as a very different spider has that common name stateside. Your spider is in the genus Nephila, though, since Australia has several representatives from the genus, we are not sure of the species. It is possibly Nephila edulis.
Indeed you are correct with your ID of the genus of the Australian Golden Orb Weaver. A bunch of information is available here http://www.usq.edu.au/spider/find/spiders/116.htm Thanks again for your great site.
Trevor Jinks Queenslanmd Ausrtralia
Letter 12 – Golden Orb Weaver: Writing Spider
Is this an orb-weaver? and whats its name?
Attached is a photo of what i believe to be an orb weaver photographed outside of summer home in beaverton Ontario, Canada. The zigzag in the web is pretty clear. Sorry the photo is not closer i had to use my telephoto lens on my SLR to get the shot and im not to good with adjusting pics on the computer. Could you tell me what Genus it is?
(lifetime arachnophobe recently rehabilitated)
We are so happy you are rehabilitated. We also know from your following letter that you realize this is Argiope aurantia, the Golden Orb Weaver. The zigzag in the web is called a stabilimentum, and is the reason this group of spiders are also known as Writing Spiders.
Letter 13 – Golden Orb Web Spider from China
Any thoughts on what this spider might be? We came across hundreds in our recent travels to southern China, mostly right at head height in the trees!
We believe this is a female Nephila clavata, the Golden Orb Web Spider, which we have identified in Korea and also ranges in China. It is possible it might be another species in the genus Nephila.