Orb weaver spiders are a fascinating group of arachnids known for their intricate, wheel-shaped webs. These spiders are often found in gardens, fields, and forests, with their population increasing in spring and more noticeable during the fall as they and their webs grow larger.
The lifespan of an orb weaver spider can vary depending on the species. For example, the furrow orbweaver can live up to two years, with some individuals even surviving through freezing winter temperatures. In contrast, other orb weavers might have a shorter lifespan, as many spiders tend to die out when the cold season arrives.
Interestingly, orb weavers are known for their diversity in size and appearance, with abdomen shapes ranging from smooth to spiny or irregular. They are common near exterior lighting and play a crucial role in controlling insect populations. Overall, these captivating spiders showcase the incredibly diverse and resilient nature of the arachnid world.
Orb Weaver Spider Basics
Species and Identification
Orb weaver spiders belong to the family Araneidae, which consists of numerous species. Some common examples include the marbled orbweaver, basilica orbweaver, and the orchard orbweaver. Accurate identification depends on observing unique markings such as:
- Marbled Orbweavers: mostly orange abdomens with brown to purple markings and spots of pale yellow
- Basilica Orbweavers: brown bodies with lengthwise outer white wavy lines on the abdominal area
- Orchard Orbweavers: distinctive silver-white markings on green or yellow bodies
Table: Comparison of Some Physical Characteristics
|9 to 20 mm
|~ 12 mm
|5 to 9 mm
|Green or Yellow
|Brown to purple
|White wavy lines
All orb weavers have eight legs, but leg sizes can vary among species. For example, black and yellow orb weavers have a third pair of legs approximately half as long as the others.
Orb weavers are non-aggressive spiders and are not dangerous to humans. They typically reside in tall grass, forests, and other natural habitats throughout North America.
Range and Distribution
Orb weaver spiders are widespread throughout the United States, Canada, and Alaska. They can be commonly found in natural habitats like forests, tall grass, and even around buildings, particularly during late summer and early fall. These spiders play a vital role as predators in their ecosystems, helping to control the populations of various insects.
Habitat and Behavior
Webs and Web Building
Orb weavers are known for their impressive and intricate webs. Found in various habitats like gardens, forests, and even the eaves of buildings, these spiders use their silk to create beautiful and functional webs. Some common web types include:
- Trashline Orbweavers: These spiders create webs with trashlines that appear like bird droppings to deter predators.
- Long-Jawed Orb Weavers: These spiders tend to leave openings in the center of their horizontally inclined webs.
Diet and Prey
Orb weaver spiders primarily consume insects that get trapped in their webs. Some examples of their prey include:
These spiders can be considered beneficial to gardens because they help control the population of harmful insects.
Predators and Threats
Orb-weaver spiders face various predators and threats in nature. Some of the known predators include:
These spiders are not considered dangerous to humans; however, caution should be taken around pets and children as they might disturb the spider’s habitat.
|Long-Jawed Orb Weaver
|Opening in the center
|Gardens, wooded areas
|Near water, forests
|Contribution to Gardens
|Beneficial in controlling pest insects
|Beneficial in controlling pest insects
Orb-weaver spiders are fascinating arachnids that contribute positively to various habitats by controlling harmful insect populations. With their diverse web-building techniques, they make the world of spiders all the more captivating.
Reproduction and Life Cycle
Mating and Fertility
Orb weavers have a unique mating process. Males do not create webs but use pheromones to locate a female mate. When a male finds a fertile female, he has to approach her carefully, as she may cannibalize him. It’s common for males to be eaten by females after mating, especially in the Mesozygiella dunlopi species.
Eggs and Spiderlings
Female orb weavers lay their eggs in protective sacs and guard them until they hatch. Eggs usually hatch in spring, with spiderlings staying inside their cocoon for a few more weeks before venturing out. Key events in the orb weaver’s life cycle are:
- Mating and laying of eggs
- Development and hatching of spiderlings
- Dispersal and growth of spiderlings
- Maturity and mating in adulthood
Orb weavers have varying lifespan depending on the species. Most spiders die in freezing temperatures, but some, like the furrow orbweavers, survive winter and can live up to two years. Orb weavers typically become more noticeable in fall as they and their webs grow in size.
|Orb Weaver Feature
|Males use pheromones to locate a mate; females may cannibalize the males after mating
|Laid in protective sacs; female guards them until they hatch
|Hatch in spring; stay in cocoon for several weeks before dispersing
|Varies by species; some orb weavers can live up to two years
Orb Weavers as Pets
Pet Care and Housing
Orb weavers can be interesting pets, particularly for those fascinated by spiders. They are known for their impressive body and abdomen size, and attractive legs. For example, the banded garden spider and Araneus diadematus are popular choices. When keeping an orb weaver as a pet, it’s essential to take care of their housing and surroundings:
- Location: Usually found in Central America, grasslands, woodlands, suburbs, and cities, these spiders prefer manmade structures for their webs.
- Terrarium size: Provide a small to medium-sized terrarium or enclosure with enough room for the spider to spin a web.
- Ambient temperature: Orb weavers thrive in a range of temperatures, but maintaining 65-85°F is optimal.
- Substrate: A layer of substrate, like coconut fiber or moss, can retain moisture and help maintain humidity.
Potential Risks and Concerns
As with any pet, there are certain risks and concerns when keeping orb weavers:
- Venom: Although their venom is typically not dangerous to humans, a bite can cause irritation or discomfort.
- Diet: Orb weavers prey on flying insects, which means you need to supply them with live food like flies or moths.
Here’s a comparison table of the key features for two popular orb weaver species:
|Banded Garden Spider
|Body length: 0.3 to 1 inch
|Body length: 0.3 to 0.8 inch
|Black and yellow bands
|Variable with white or yellow markings
|North and Central America
|Europe, North America
By considering these points, you can ensure that your orb weaver pet has a comfortable and healthy living environment.
Venom and Danger to Humans
Orb weaver spiders are mostly harmless to humans. Their venom is not considered highly toxic, and their bites are usually not severe. The venom of some orb weavers, like long-jawed orb-weaving spiders, consists of proteins belonging to novel gene families.
Bite Symptoms and Treatment
If an orb weaver does bite someone, the symptoms usually involve mild pain, itching, and swelling. Treatments usually include:
- Cleaning the bite area with soap and water
- Applying ice or a cold compress
- Taking over-the-counter pain relievers or antihistamines
These simple treatments help alleviate discomfort and prevent infection.
A comparison of orb weaver venom to more harmful spider venom:
|Danger to humans
Orb weaver spiders are not known to use their venom for malicious purposes, and their bites are an infrequent occurrence. They use their spinnerets to produce silk for creating their elaborate webs to catch prey.
In summary, orb weaver spiders are not a significant threat to humans, and their venom is not highly toxic. The bite symptoms are mild, and treatments are simple and effective. These spiders are more beneficial to our ecosystem than they are dangerous to us.
Ecological Importance and Conservation
Role in Ecosystem
Orb weavers, belonging to the Araneidae family, play a vital role in controlling insect populations. Their sticky silk webs allow them to capture various small insects, thus keeping the numbers in check.
- Eating: Orb weavers generally feed on pests, such as mosquitoes and flies.
- Predators: These spiders also serve as a food source for birds, reptiles, and other insectivorous creatures.
Orb weavers like the spiny orb weaver have unique adaptations that contribute to their survival and conservation. They can live for one to two years in the wild, which is relatively long for a spider. Conservation efforts should focus on preserving their habitats and minimizing the use of pesticides.
Comparison of two orb weaver species
|Spiny Orb Weaver
|Small (up to 5mm)
|Medium (about 12mm)
|Classic orb web
|Dome-shaped web part
|Shrubs and low trees
|Forest edges and wetlands
In summary, orb weavers have a significant ecological role and require appropriate conservation measures to protect their populations and habitats.
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 – Orchard Orbweaver
Type of Florida Spider
July 28, 2009
Please help me identify this spider.
Satellite Beach, FL
The Orchard Orbweaver, Leucauge venusta, is a common spider in the Southeast. According to BugGuide its habitat is : “Woodlands. Builds in low shrubs or small trees, close to the ground“ and it can be identified by the “Slightly elongated abdomen marked with silver, yellow, black, green, and bright orange or pink spots. Spins its web at an angle and hangs in the center.”
Letter 2 – Orbweaver: Hypsosinga pygmaea
Subject: Hypsosinga pygmaea??
Location: Thunder Bay, Ontario, Canada
October 26, 2015 11:17 am
Hi! I have found two of these spiders in my house in the past month. From what I’ve searched on the internet it looks like it’s a hypsosinga pygmaea. Can you please validate that for me?? And I can’t seem to find if they are venomous or not. Thank you in advance.
Signature: im not sure what this is asking?
Congratulations on what we believe is a correct identification of a new species for our site, and we know how difficult some identifications can be. We are basing our agreement with your identification on images posted to BugGuide, and though BugGuide has no specific information on the species we can generalize based on family information. Most all spiders are venomous, but very few have either powerful enough venom to do damage to a human or strong enough mandibles to be able to bite a human. Most spider bites will result in little more than local swelling and tenderness, so they are not a threat to humans. Members of the family Araneidae, according to BugGuide, called: “Orb weavers are very docile, non-aggressive spiders that will flee at the first sign of a threat (typically they will run or drop off the web). They are not dangerous to people & pets, and are actually quite beneficial because they will catch and eat a lot of pest-type insects. ”
Letter 3 – Orbweavers from Hawaii
Argipoe appensas mating activity
Fri, Feb 27, 2009 at 12:01 AM
I got this shot of a male Argipoe appensas? after it spent some time on the web of a female. I did not get a shot of the actual mating. I’m not sure it occurred. However, I wonder if the small appendage and organ to the left of his head are sex organs and/or sperm packets?
Kapaa, Kauai, Hawaii
Thanks for sending us a photo of a pair of Argiope appensa preparing to mate. The much smaller male will spend considerable time in the web of the female until he has an opportunity to mate. In speaking about a related species, Argiope aurantia, BugGuide mentions the palps on the male spider being reproductive organs. The Biodiversity Explorer website discusses the copulatory organs of spiders thus: “The copulatory organs of the Araneomorpha, or true spiders, have entelegyne features. The male palps are enlarged distally (at the ends) due to a complex copulatory organs or genital bulbs that resemble boxing gloves. Some tiny male spiders have ridiculously large palps relative to their body size. The male and female genital organs are very specific and function on a “lock and key” principle. These organs are used to identify spiders to species level. The female genitalia, the epigyne, is situated ventrally (underside) between the booklung slits on the epigastric furrow. The epigyne is a black, shiny, chitinous, oval to round plate with two openings. “
Correction: Mon, Mar 2, 2009 at 8:13 AM
Aloha Daniel –
Regarding the post on Sunday:
A pair of Orbweavers from Hawaii
Argipoe appensas mating activity
Fri, Feb 27, 2009 at 12:01 AM
The photo from Kaua`i appears to have an adult female and a sub-adult female. Also, the writer is confusing the stabilimentum with something to do with reproduction.
The observations I’ve made of the males on Maui are that they have very little of the same markings on their back as the female. They are also seriously small compared to the females. Most people totally miss the boys hanging out on the other side of the web because of their X shape and the general size of these girls.
Also, regarding the first image – the male would need to be on the other side of the web. It is the best place for them to sip on the meal provided by the female. But who knows what they do when I’m not looking at them? Ha!
The link you have to BugGuide – for the Argiope Aurantia – the male is really large compared to what I have seen here on Maui for the Appensas. Of course, with the way animals can adapt to their environments, Kaua`i appensas and Maui ones could be different!
Right now, due to the wet and seriously windy weather in Ha`iku, our Appensas are hiding in their appropriate safe zones so I can’t send you an image of a pair here. I will make sure you get an image when I can. Also will include an image of egg sacks, which look rather like a wrapped-up used food source.
These images are from lower Kula on Maui – 30 July 2005. I had a house with an outdoor shower and these girls shared bug reducing duties for me.
Mahalo – Thanks – for all the enjoyment your efforts bring to the world.
Thanks for correcting our error Eliza.
Letter 4 – Orbweaver: Araneus cingulatus
Green Spider, Red and White Patterned Back
September 25, 2009
Hi there! Found this beauty on my porch in July 2009 in Southern NJ. Haven’t seen him before or since. Pattern is really cool, haven’t been able to find anything about him here or online.
MYP in NJ
It is quite unfortunate that this lovely green Orbweaver, Araneus cingulatus, does not have a common name. You can see additional images on BugGuide.
Letter 5 – Orbweaver: Eriophora ravilla
Location: Sunrise, FL (South Florida)
March 16, 2012 5:31 pm
Hello! Thank you for taking the time to look over my submission.
I found this guy after a pretty bad rainstorm. It had apparently setup its web from a tree branch to the top of a low bush.
This is the first time I’ve seen this spider like this; I’m pretty well acquainted with the spiders of South Florida as I have a crippling arachnophobia. It was about 1.5” to 2” long, and there was nothing unusual or ornate about the web that would suggest it was a weaver. I could not see any insects caught on its web, and didn’t have the opportunity to observe it over time as landscapers came and ”relocated” it.
I’d be happy to answer any questions I might not have thought of, though I didn’t gather much info I’ll try to help. Thank you!
We quickly identified your Orbweaver as Eriophora ravilla on BugGuide. Large Orbweavers may bite if carelessly handled, but they are not aggressive. They are actually often quite clumsy when not in their webs. According to BugGuide: “These spiders spin their webs, which can be many feet wide, in the evening. At night they sit in the web. By day, they will usually hide in a rolled-up leaf somewhere near the edge of the web.”
Not sure if it’s okay to reply to this email, but here goes…
Thank you for your quick response. I’ve been examining the photos I’ve taken closely and had the idea it was an orb-weaver in the back of my mind. I guess I think of adorning their webs with the zig-zags as a definite characteristic of orb weavers. Also, golden orb-weavers are such a common sight in my area, I guess it didn’t cross my mind there would be differing species in the neighborhood.
It’s funny, I was just discussing the behavior of this spider and its disappearance and reappearance. I just recently made the observation that it was going somewhere in the daytime, as I noticed the web was untouched by the landscapers but the spider was still missing.
Not sure if it’s necessary at this point, but I took another picture just now… this time of its underside. Anyways, your answer was absolutely accurate and thanks again for the quick turnaround.
Letter 6 – Possibly Giant Lichen Orbweaver
Subject: Orb Weaver
Geographic location of the bug: New Jersey
Time: 06:17 PM EDT
Your letter to the bugman: Dear Bugman,
I found this beautiful spider in the center of its round web. It was in a bog in the New Jersey Pine Barrens, in stand of Cedar Trees. Also growing in the area were Pitch Pine, blueberry, lichen, and a variety of wetland plants.
The spider was small, maybe about a 1/4 inch long. I found it today, April 25th.
These are my own photos.
Thanks very much!
How you want your letter signed: Shawn McClure
Our best guess is that this is a Giant Lichen Orbweaver, Araneus bicentenarius, which is pictured here on BugGuide and here on BugGuide. Exact identification might prove difficult because based on the time of year, your location and the size you indicate, this is probably an immature individual that will mature in the fall. According to BugGuide, the habitat is: “Woodlands, on trees, among lichens.”
Letter 7 – Orbweaver: Gray Cross Spider
Female Wolf Spider???
Location: Merrimack, NH
August 7, 2010 10:56 pm
I stalked and named this beauty, Ilsa. Honestly, I stalk bugs all the time, but since she stays in the same place, I am kinda attached to her.
These images are of her during a web cleansing. Really was awesome to watch and photograph. She reeled in each strand, fed on the little carcasses and then wadded them up under her, and then cut the line when she finished.
This is most definitely not a Wolf Spider. She is an Orbweaver in the family Araneidae. Orbweavers rarely leave their webs and they can be quite clumsy when they are forced to, despite the grace they have while negotiating the strands of their own webs. You may read more about the family on BugGuide and compare “Ilsa” to the photos posted there. Sadly, we do not feel competent to identify Lisa to the species level, though we suspect her genus is Araneus. Your observations of “Ilsa’s” feeding habits is quite interesting.
Daniel…ilsa, not Lisa 🙂 and for the info, Thanks!!!
Ed. Note: Correction made.
Species Identification courtesy of Eric Eaton
August 11, 2010
Went through the site and found only a few minor corrections/clarifications, most recent to oldest: …
… Orb Weaver from Merrinack, New Hampshire: Larinioides sclopetarius (“Gray CrossSpider”)…
…Is the book out for everybody yet? If so, I’ll link it to my blog, share on Facebook, etc. I did get the pre-order e-mail from you.
We can now link to the BugGuide information page on the Gray Cross Spider. The book will be available in October 2010.
Letter 8 – Orbweaver: Eriophora ravilla
Half dollar size hairy spider
Location: Orlando FL
March 22, 2012 9:43 pm
I’ve seen these spiders at my house before. They are really hard to photograph becuause they only come out at night and they build large webs high in the air. This year there are two of them within 5 feet of each other. They have been building their webs every night for the last week or so. By morning the webs are gone and so are the spiders. The bodies are about the size of a nickle and with the legs at a normal distance they are about the size of a half dollar. The legs could sprea out to about 4 or 5 inches I would Imagine.
They have been building their web between my house and my neighbors house it’s about 15-20 feet. Here are some pics and a video.
What are they?
Signature: Matt Batt
This beauty is an Orbweaver Spider, and the species is Eriophora ravilla. Just last week we posted another image, also from Florida.
Letter 9 – Orbweaver may be Cat-Faced Spider
Subject: Grey Lumpy Spider
Location: Northern California
May 9, 2015 9:22 am
I’m a bit of an amateur arachnologist, and as such a lot of my friends text me pics for identification regularly. I usually can get them at least a Genus within moments, but a friend of a friend sent me a pic that has me a little stumped. It’s a female grey spider, no web visible, with some interesting protrusions on her back. I tried to do some research, but I keep coming up with blanks. What is she? I’d love to know! She was found in Northern California, we live in San Francisco and I believe her friend found the little lady in the east bay.
Letter 10 – Orbweaver, possibly Araneus gemma
ubject: What kind of spider is this?
Location: La Marque
February 18, 2013 5:44 pm
Found this spider outside on my car. Although the picture sort of makes it look brown. In person it actually looks orange in color.I was wondering what kind of spider it is.
Signature: Thanks in advance, Txfinest
This is one of the Orbweavers in the genus Araneus. It fits the description of Araneus gemma which BugGuide describes as: “carapace and abdomen vary in color from gray to brownish purple. The abdomen has anterior paired humps and may have a medial light stripe that varies in length.” BugGuide lists the range as: “Along the West coast of North America from southern Alaska to southern California and inland to western Montana” but that might not be entirely accurate.
Letter 11 – Orbweaver, possibly Shamrock Orbweaver
Spider in Adirondacks
Hello, While camping in Saranac Lake, NY in August 2005, I was sitting around the camp fire with friends when this spider ended up on my shoulder somehow. I quickly shooed it into a cup and snapped a quick picture before dropping it back off in the woods. We always wondered what kind of spider it was and why its abdomen area was so large. Hopefully the cup should give you a reference to its sizeThanks
Lake Saranac, NY
In the autumn, from all over the country, we receive requests for Orbweaver Spider identifications. Those requests just might outnumber all others at this time of year. The main reason is that the female Orbweaver Spiders have attained adult size and become quite noticeable. Often the gorgeous orb webs are in strategic locations. We have three healthy females stretching webs nightly in close proximity to our porch light. Each night they spin a new web and wait for the insects that are attracted to the light, and the spiders have grown quite fat due to the good trapping. When the Orbweaver is in the genus Argiope, we can, with a degree of certainty, provide a species name, but when the Orbweaver is in another genus like Araneus or Neoscona, this is often quite difficult for us. There is much similarity between species, and much variation within an individual species. We believe this is Araneus trifolium, sometimes called the Shamrock Orbweaver. Glancing at the photos posted to BugGuide for this species should provide some idea of the individual variation.
I’m fairly certain that the “shamrock orb weaver” posted recently is actually a color phase of the “marbled orb weaver,” Araneus marmoreus. They are very closely allied to the shamrock spider (A. trifolium), so it is easy to get confused!
Letter 12 – Orbweaver Spiderlings
Location: East Bay Area, California
April 17, 2011 9:51 pm
I work in a preschool in Northern California and found these all over one of our play structures a couple weeks ago. We have all kinds of spiders, not all of them nice…can you tell me what these are?
Signature: R. Allen
Dear R. Allen,
We believe these are Orbweaver Spiderlings. Orbweavers are magnificent spiders and they are not considered dangerous. Your photo will not post live until later in the week because we are postdating it along with several other postings in consideration of our brief holiday.
Thank you so much! Sigh of relief 🙂
Letter 13 – Orbweaver Spiderlings
Location: stewrtstown PA
May 21, 2011 1:58 pm
Hi. I was wondering what this yellow mass was. Found it hanging off a shasta daisy leaf in my perennial garden. Seems to be almost suspended with very faint spider webs surrounding it, not really growing ON anything. Maybe 1-2 inches long. Wasn’t sure if it was an insect egg mass or a slime mold–it’s been a very wet 2 weeks.
We believe these are newly hatched Orbweaver Spider spiderlings. They should soon disperse by releasing a strand of silk and catching a breeze, a technique known as ballooning.
Well thank you so much Daniel Marlos. I hope that’s what they are. I will watch closely. PS “Spiderlings” is a great word.
Letter 14 – Orbweaver Spiderlings
Location: Parksville, Vancouver Island, British Columbia, Canada
November 27, 2011
Thanks for your quick reply. It pleases me greatly that I was able to provide something new to your site.
I’m attaching 3 more pictures: the first is a full profile shot of the damselfly (hopefully, it might help with the identification); the second one is a close up of a cluster of spiderlings, probably of Argiope aurantia? The final one is of a jumping spider. Not technically bugs (or even insects!), but I thought I might send it in. All pictures were taken the same place as the skipper, along a rocky beach.
By the way, regarding the proposed case bearing moths, it was in Hong Kong that they were found (my friend took those original photos).
We are very happy to post your image of Orbweaver Spiderlings. We agree that they look like immature Golden Orbweavers, Argiope aurantia, because they match this image on BugGuide.
Letter 15 – Orbweaver Spiderlings
Geographic location of the bug: Sunnyside, Utah
Time: 11:28 AM EDT
Your letter to the bugman: I have been a fan of your page for many years. Whenever I seen and interesting bug I come here to investigate it. I have collected some bug photos that I just wanted to share.
How you want your letter signed: Janice Leavitt
Thank you for your kind words. We really love your image of hatchling Orbweavers that have not yet dispersed. We will do a separate posting of the Centipede you submitted.
Letter 16 – Orbweaver Spiderlings
Subject: Pile of spiders! What kind?
Geographic location of the bug: Mill Valley, CA, Marin County, right outside San Francisco, Northern CA
Time: 03:45 AM EDT
Your letter to the bugman: Dear Bugman,
I was out on my deck and I saw this in a spider web. My husband decided to hit it with our bug zapper and TONS of baby spiders scattered everywhere. It freaked me out. I’ve never seen a nest like this before! From a distance it looked like a piece of a plant or tree.
First two pictures arr of them huddled together and second picture is of them scattering.
How you want your letter signed: Alison
These are harmless Orbweaver spiderlings, and they are probably very recently hatched. Young Orbweavers frequently disperse by ballooning away on the wind: spinning a silk thread that catches the wind and transports the individual spiderlings great distances from where they hatched.
Letter 17 – Orbweaver traps Stink Bug in Brazil
Spider in Northeastern Brazil
Location: Northeastern Brazil
July 19, 2011 12:34 am
Hello, I have another little specimen from Brazil that I’d like to know about. I saw these little dudes every once in a while in a web that they make in between plants or branches. At first, they appear to have 4 legs but if you look closely they group their legs together in four groups of two. They sit in the middle of the web during the day and night and are VERY FAST when a bug lands in their web. I would pick up ants and throw them in and watch the spiders do their work, which was quite entertaining. One house that I lived in had around 20 of these in the back yard. I don’t know the Brazilian name for this one though. I googled pictures of spiders in Northeastern Brazil until I found the spider I was looking for. Here it is 🙂 Thanks a lot!
This spider is an Orbweaver in the genus Argiope, and it appears to have trapped a Stink Bug.
Thank you so much for the identification. After I received your reply I studied a bit more about the genus and also found out that they are harmless to humans unless molested, and if bitten, the venom is very weak. I always thought otherwise because of the brightly colored abdomen! I also found out that the venom contains Argiotoxin (ArgTX-636) is often gathered for therapeutic reasons. What an amazing species!
Letter 18 – Orbweaver Web
Spider web full of color
July 18, 2009
Hi I live in Oregon, and by Crater Lake I saw this beautiful spider web. have you ever seen one like this?. I wonder what kind of spider made this? If you have time please let me know. thanks so much
Your Spider Web photo is quite beautiful. We cannot tell you the species, but this is the web of one of the Orbweavers in the family Araneidae. The color is probably the illusion created by the silk and moisture acting like a prism when struck by light from the perfect direction.
Spiders on Drugs
November 14, 2009
In doing research for our book that must be completed in sixteen days, we stumbled upon this wonderful website that contains images of spider webs spun while under the influence of various drugs.
Update: April 22, 2018
While trying to link to the article of Spiders on Drugs, we realized our old links no longer took readers to the original article we cited, but we found it again on Priceonomics.
Letter 19 – Orbweaver Web
Back Porch Spider
August 29, 2010
Hi Daniel and Lisa,
This spider has been nothing but tenacious over the last week. It has taught me to look before I step out onto my back porch. Three webs in six days were constructed overnight to trip me, to brush my hair, or to keep me from using the back steps! Here, it lies in wait for breakfast!
Is it simply “an orb-weaving” spider or something more specific?
Thanx for your time,
Great Smoky Mountains
Thanks so much for sending us your photo of an Orbweaver Spider and its web and providing details of the spider’s nightly activities. Each year, as summer nears an end and the warm autumn days shorten, we get countless requests to identify Orbweaver Spiders and questions regarding the danger they might cause. Spiders with orb webs in the family Araneidae (see BugGuide) are not aggressive and they rarely bite. The bite, in the unlikely event that it occurs, is not serious and will cause minor local swelling and tenderness. Orbweavers do not pose a threat and they should be left to spin their webs and capture flying insects like flies and mosquitoes. Your photo illustrates the classic orb web. We suspect your spider is in the genus Araneus.
Letter 20 – Orbweaver with Prey
Gorgeous orange girl
Location: Leander, Texas (Near Austin)
October 20, 2010 8:24 am
I keep and breed tarantulas, and have a deep appreciation for ”true” spiders. With approximately 860 known species, Theraphosidae are easily identified, however true spiders continue to vex me with their variety. This beautiful girl is ”hanging out” on my deck, located in Leander, TX, about 10 minutes out of Austin. I have never seen anything besides Latrodectus with such a remarkable ventral marking. What is this lovely creature?
Signature: Tarantula Terri
Dear Tarantula Terri,
This lovely creature is an Orbweaver in the genus Araneus. In the fall, shortly before Halloween, many spiders have matured and reached their full size. These impressive creatures, especially the Orbweavers, are suddenly very visible as they spin large orb webs and position themselves in the webs. They attract considerable attention. It appears the female in your photo has snared a Yellow Jacket.
Letter 21 – Orbweaver with Spiderlings from Brazil
Location: Navegantes – SC, Brazil
October 26, 2015 10:02 am
Found at Navegantes, south of brazil, is timid, when i try to approach it, it walks away a little. Is territorialist, i never found any spider next to it, same species, nor other species.
Signature: Julian Silva
This is an Orbweaver in the family Araneidae, and they are a harmless and beneficial family whose members rarely stray far from their orb shaped webs. If you look closely on the left side of this little lady, you will see what looks like newly hatched spiderlings. They will soon disperse by ballooning. Perhaps Cesar Crash who runs our sister site out of Brazil, Insetologia, will be able to provide a species identification.
Correction: October 27, 2015
Thanks to a comment from Cesar Crash, we now know that this is Nephilengys cruentata in the Orbweaver family Nephilidae, not Araneidae. See FlickR and Insectologia for images
Letter 22 – Orchard Orbweaver
bright green spider
November 9, 2009
I found this spider hanging out on my front door when my sister came to visit today. I grabbed my camera so I could try to identify it.
Your beautiful spider is an Orchard Orbweaver, Leucauge venusta. You can find more information on BugGuide.
Letter 23 – Pair of Orbweavers from Argentina
Subject: Silver Argiope from Argentina
Location: San Rafael, Mendoza, Argentina
February 12, 2014 4:08 pm
I came across this great pair of spiders on a trip to the Argentine wine country. Specifically, Elsa vineyard (certified sustainable) operated by Bianchi Winery, San Rafael, Mendoza.
I found a pic here on What’s That Bug of a silver argiope while that one was more yellow, this spider was clearly more silver/gray. It spanned two rows of grape vines with the main web close to one row and a very high tensile strand spanning over 5 feet.
Hope you like it.
Signature: Brian Erickson
Your photo beautifully illustrates the incredible size discrepancy between the sexes of the Silver Orbweaver, Argiope argentatua. The difference between the size of the pair of spiders in your photo appears to be even greater that that of the Golden Silk Spider.
Letter 24 – Pair of St. Andrew’s Cross Spiders from Malaysia
Subject: Pretty spider
November 27, 2013 5:54 am
Hello, I’m Nur from Malaysia. Usually the spiders I found are the normal small house spiders. But this one I found recently on my yard is kind of weird. It is colourful and too big compared to the ones I usually found.
Is it poisonous or dangerous in any ways? I’m worried to let my little sisters to play there with that unknown spider around…
Signature: Curious child
Dear Curious child,
The large spider in your photos is a female Orbweaver in the genus Argiope, and they are not considered dangerous spiders. Large specimens might bite and they do have venom, however the bite is not considered dangerous to humans. There may be a painful local reaction with swelling and tenderness, but there will be no lasting damage in the event a bite occurs. These spiders remain in their webs and they will not bite unless they are carelessly handled. If you look closely, you will see a much smaller spider in the web. This is the male. There is often a great size discrepancy between female Orbweavers, which can get very large, and their mates, which might be as little as 1/100 the size of the female. We will try to determine the species later in the day when we have additional time to do the research.
Update: November 30, 2013
It has been a slow mail day today, so we had a chance to get back to this posting. Searching the genus Argiope in Malaysia, we found a very similar image posted on this Malaysian Spider page, and they are identified as Argiope aemula. Armed with a name, we then found A Guide to Common Singapore Spiders and the common name St. Andrew’s Cross Spider, however that common name is already shared by a different species of in the same genus that is found in Australia. The common name St. Andrew’s Cross Spider refers to the X shaped stabilimentum that is woven into the orb web and which is nicely illustrated in one of your photos. Dave’s Garden also has a nice photo of your St. Andrew’s Cross Spider.
Letter 25 – Pale colored Golden Orbweaver
Subject: Large Orb – Albino?
Geographic location of the bug: Boerne, Texas
Time: 10:27 PM EDT
Your letter to the bugman: I have looked through MANY pictures of Orbs, but this critter seems unique. She seems to have the correct pattern for a black and yellow orb, but not the right colors. Can spiders be albino (besides the obvious cave dwellers), thoughts?
How you want your letter signed: Adam Branch
We don’t know if this is considered a true albino, but we agree it is a Golden Orbweaver, Argiope aurantia. BugGuide has an image of a similar looking individual that is called a “light color morph” and this BugGuide image is also of a light individual.
Letter 26 – Pet Orbweavers need to eat Insects
Subject: I Have 3 Pet Spiders and do not Know What to Feed Them
Location: Okanagan Region (Beach)
August 4, 2014 5:06 pm
I’m Candace (13) and I have 3 “pet” spiders. I caught them all down in a shack in southern British Columbia. I’m curious to find out what kind of spiders they are and what I should be feeding them. They are all in different terrariums with shells at the bottom and I’m keeping them in my room. When it’s light out, I normally keep them in a luke-warm, dark area. Is that what they normally prefer? Could you please help me identify these spiders? They are very dear to me and I would be quite upset if they were to starve to death.
Thank you for your time.
All of your spiders are species of Orbweavers, and they spin webs to snare prey. You can feed them flies or other insects that you capture, or you can go to a pet store and purchase crickets to feed the spiders. The file numbered 1820 appears to be a Long Jawed Orbweaver, Tetragnatha versicolor, and you can compare your pet to this image on BugGuide. According to BugGuide, their food is “Primarily insects.”
Your other two spiders are Orbweavers in the family Araneidae, but we are uncertain of the species. According to BugGuide, the “Food sources vary, but typically any small insects they catch in their webs. “
Letter 27 – Possibly male Marbled Orbweaver (or Cobweb Weaver or Sheetweb Weaver
Mon, Jun 15, 2009 at 4:46 PM
I found this beautiful spider today (June 15th) walking in my garden, across goldenrod, lily leaves, and onto a dead stump. It moved quickly but gracefully. I have been all through my three field guides and Bug Guide, and I can’t find anything close. I live in Newton, New Jersey, up in the northwest corner of the state. Thank you!
Newton, New Jersey
This is a wonderful image. Based on the presence of the well developed pedipalps, the appendages closest to the mouth, we would say that this is a male spider. Male Orbweavers tend to be very reclusive, and they are not often photographed. The considerably larger females often spin large webs in the same location for long periods of time. The females are more sedentary, preferring to stay home in the web and capture insects while the diminutive male travels in search of a mate. We would venture a guess that this may be a male Marbled Orbweaver, Araneus marmoreus, though we have not seen a photograph of one. We are basing that possible identification on the similarity of the markings on the legs and abdomen of your specimen to the images posted on BugGuide of female Marbled Orbweavers. There is much variability in the markings and coloration of many of the Araneus species, and it is possible that your specimen is another member of the genus or even one of the other genera of Orbweavers. We gladly welcome our readership to assist in this identification.
Thank you so much! Your website is wonderful. Isn’t it funny, the ways we can brighten people’s lives!
Update from Eric Eaton:
Tue, 16 Jun 2009 06:47:16 -0700 (PDT)
I can’t even tell what family that spider belongs in, and not sure if I know anyone else who can, either. I’d be leaning toward a cobweb weaver (Theridiidae) or sheetweb weaver (Linyphiidae), though….
Letter 28 – Possibly Male Orbweaver from Australia
Subject: Unidentified Spider
Location: Perth, Western Australia
September 16, 2013 12:02 am
I would love an ID for this spider if possible – I think it is a Lynx spider, but having looked through various guides online, I can’t see a similar looking one? I found it on my cat’s scratching post on my verandah in Perth, Western Australia. Body length approx. 8-10mm.
It has an interesting mosaic pattern on the abdomen.
He was released unharmed after the photo 🙂
The eye pattern on this spider looks most like that of the Orbweavers in the family Araneidae (see BugGuide). The large pedipalps indicate this is a male spider. The body pattern also reminds us of Orbweaver Spiders, so our initial guess is that this is some male Orbweaver, but we haven’t had any luck matching it to an images online. Perhaps one of our readers will have better luck with an ID.
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 – The Spider and the Butterfly
While watering the garden, we couldn’t help but to be amazed by this backyard drama. A Marine Blue butterfly, Leptotes marina, was startled into flight because of our hose. It flew directly into the web of a baby orb weaver, probably a Jeweled Araneas who strung a web in the lemon tree, and was quickly ensnared and sucked dry.
Buibui wanaoitwa orb weaver ni kikundi cha viumbe wa jamii ya arachnid wanaojulikana kwa utando wao tata wenye umbo la gurudumu. Buibui hao hupatikana katika bustani, mashamba, na misitu, na idadi yao huongezeka wakati wa majira ya kuchipua na huonekana zaidi wakati wa vuli huku wao na mawingu yao yakiongezeka. Muda wa kuishi wa buibui anayeitwa orb weaver unaweza kutofautiana ikitegemea spishi. Kwa mfano, ndege aina ya furrow orbweaver inaweza kuishi kwa muda wa miaka miwili, na baadhi yao wanaweza hata kuishi wakati wa majira ya baridi kali. Kinyume cha hilo, huenda buibui wengine wakawa na maisha mafupi, kwa kuwa buibui wengi hufa wakati majira ya baridi kali yanapofika. Kwa kushangaza, aina ya orb weavers ni tofauti sana katika ukubwa na sura, na tumbo lao linaweza kuwa laini au lenye miiba au lisilo la kawaida. Wao ni wa kawaida karibu na taa za nje na hutimiza fungu muhimu katika kudhibiti idadi ya wadudu. Kwa ujumla, buibui hao wenye kuvutia huonyesha jinsi ulimwengu wa vipepeo ulivyo na utofauti mwingi na jinsi ulivyo thabiti. Spiders wa Orb Weaver ni jamii ya spiders ya familia ya Araneidae, ambayo ina aina nyingi. Mifano fulani ya kawaida inatia ndani mnyama anayeitwa marbled orbweaver, mnyama anayeitwa basilica orbweaver, na mnyama anayeitwa orchard orbweaver. Mfano: Mnyama wa Marbleweaver: Mwili wa rangi ya machungwa na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano na rangi ya manjano. Kwa mfano, ndege aina ya black and yellow orb weavers wana miguu miwili ya tatu ambayo ni ndefu kama nusu ya miguu mingine. Vipepeo hao si wakali na si hatari kwa wanadamu. Kwa kawaida wao huishi katika nyasi ndefu, misitu, na maeneo mengine ya asili kotekote Amerika Kaskazini. Aina na Usambazaji Buibui wa Orb weaver ni wa kawaida kotekote Marekani, Kanada, na Alaska. Kwa kawaida hupatikana katika maeneo ya asili kama misitu, nyasi ndefu, na hata karibu na majengo, hasa mwishoni mwa majira ya kiangazi na mapema vuli. Buibui hao hutimiza fungu muhimu wakiwa wawindaji katika mazingira yao, wakisaidia kudhibiti idadi ya wadudu mbalimbali. Wanyama hao wanajulikana kwa utando wao wenye kuvutia na wenye kutatanisha. Kwa kuwa wao hupatikana katika maeneo mbalimbali kama vile bustani, misitu, na hata kwenye paa za majengo, buibui hao hutumia hariri yao kutengeneza mawingu maridadi na yenye kutumika. Aina fulani za wavu wa kawaida ni pamoja na: - Trashline Orbweavers: Buibui hawa huunda wavu wenye mistari ya taka ambayo huonekana kama kinyesi cha ndege ili kuzuia wawindaji. - Vipepeo hao huwa na mwelekeo wa kuacha mashimo katikati ya utando wao ulioelekezwa kwa usawa. Buibui anayeitwa Diet na Prey Orb weaver hula hasa wadudu wanaokamatwa katika wavu wao. Baadhi ya aina hizo za buibui hufaulu katika kutunza bustani kwa sababu zinasaidia kudhibiti idadi ya wadudu wenye madhara. Wanyama-mwitu na Vitisho Buibui-wavuvi hukabiliwa na wanyama-mwitu na vitisho mbalimbali katika asili. Baadhi ya wadudu wanaojulikana ni pamoja na: Buibui hawa hawachukuliwi kuwa hatari kwa wanadamu; hata hivyo, tahadhari inapaswa kuchukuliwa karibu na wanyama wa kufugwa na watoto kwani wanaweza kusumbua makazi ya buibui. "Mbwa aina ya ""Orb-weaver"" huishi katika maeneo ya mashambani, karibu na maji, misitu, na maeneo ya mashambani, na huishi katika maeneo ya mashambani, karibu na maji, misitu, misitu, na misitu. ""Orb-weaver"" ni aina ya buibui wa kuvutia ambao huchangia vizuri katika mazingira mbalimbali kwa kudhibiti idadi ya wadudu wenye madhara." Kwa kutumia mbinu zao mbalimbali za kutengeneza utando, wao hufanya ulimwengu wa buibui uwe wenye kuvutia zaidi. Uzazi na Mzunguko wa Maisha Kuoa na Uzazi Orb weavers wana mchakato wa kipekee wa kuoa. Wanaume hawafanyi utando bali hutumia feromoni ili kupata mwenzi wa kike. Mbwa-mwitu anapopata mwanamke mwenye uwezo wa kuzaa, anapaswa kumkaribia kwa uangalifu, kwa kuwa huenda mwanamke huyo akamla. Ni kawaida kwa wanaume kuliwa na wanawake baada ya kuchumbiana, hasa katika spishi za Mesozygiella dunlopi. Mayai na Vipepeo Wanawake wa aina ya orb weavers huweka mayai yao katika mifuko ya ulinzi na kuyalinda hadi yatakapofungua. Kwa kawaida mayai huanguliwa wakati wa majira ya kuchipua, na vifaranga hukaa ndani ya kifuniko chao kwa majuma machache zaidi kabla ya kutoroka. Matukio muhimu katika mzunguko wa maisha ya orb weaver ni: - Kuoa na kuweka mayai - Maendeleo na kuanguliwa kwa spiderlings - Kuenea na ukuaji wa spiderlings - Ukomavu na kuunganisha katika utu mzima Orb weavers wana maisha tofauti kulingana na spishi. Buibui wengi hufa katika hali ya hewa ya baridi kali, lakini baadhi yao, kama vile buibui anayeitwa furrow orbweaver, huokoka majira ya baridi kali na wanaweza kuishi hadi miaka miwili. Kwa kawaida, wavunaji wa miamba huonekana zaidi wakati wa vuli huku wao na mawingu yao yakikua. Mnyama wa kiume huishi kwa muda wa wiki mbili kabla ya kutoweka, na wanyama wa kiume huishi kwa miaka miwili baada ya kutoweka. Wanajulikana kwa ukubwa wao wa mwili na tumbo, na miguu yenye kuvutia. Kwa mfano, buibui anayeitwa banded garden spider na Araneus diadematus ni aina za buibui wanaopendwa sana. Wakati wa kuweka orb weaver kama pet, ni muhimu kutunza makazi yao na mazingira: - Eneo: Kwa kawaida hupatikana katika Amerika ya Kati, nyasi, misitu, vitongoji, na miji, buibui hizi wanapendelea miundo ya binadamu kwa ajili ya mtandao wao. - Ukubwa wa terrarium: Toa terrarium ndogo hadi ya ukubwa wa kati au chumba chenye nafasi ya kutosha kwa buibui kutengeneza wavu. - Joto la mazingira: Wanyama wanaotengeneza miamba hufanikiwa katika kiwango mbalimbali cha joto, lakini kudumisha joto la kati ya 65 na 85°F ni bora. - Substrate: tabaka la substrate, kama nyuzi za kokoni au mwani, inaweza kuhifadhi unyevu na kusaidia kudumisha unyevu. Uwezekano wa hatari na wasiwasi: Kama ilivyo na mnyama yeyote, kuna hatari na wasiwasi fulani wakati wa kuweka weavers orb: - sumu: Ingawa sumu yao kwa kawaida si hatari kwa wanadamu, kuumwa inaweza kusababisha kuchochea au usumbufu. - Chakula: Wanyama hao hula wadudu wanaoruka, kwa hiyo unahitaji kuwapa chakula kilicho hai kama vile nzi au nondo. Kwa mfano, meza ya kulinganisha ya sifa kuu za spider mbili maarufu za orb: Banded Garden Spider, urefu wa mwili: 0.3 hadi 1 inchi, urefu wa mwili: 0.3 hadi 0.8 inchi, mistari nyeusi na manjano, tofauti na alama nyeupe au manjano, Amerika ya Kaskazini na Kati, Ulaya, Amerika ya Kaskazini, na Ulaya. Uchawi na Hatari kwa Wanadamu Buibui wa Orb weaver kwa kawaida hawaathiri wanadamu. Sumu yao haichukuliwi kuwa yenye sumu sana, na kwa kawaida kuumwa kwao si kali sana. Sumu ya baadhi ya wanyama wanaotengeneza utando wa dunia, kama vile buibui wenye taya ndefu, ina protini zinazohusiana na familia mpya za jeni. Dalili za Kuumwa na Matibabu Ikiwa mnyama anayefanya kazi ya kufuma amemkata mtu, kwa kawaida dalili hizo hutia ndani maumivu madogo, kukwaruza, na uvimbe. Matibabu ya kawaida ni pamoja na: - Kusafisha eneo la kuumwa na sabuni na maji - Kutumia barafu au compress baridi - Kuchukua over-the-counter analgesics au antihistamines Matibabu haya rahisi kusaidia kupunguza usumbufu na kuzuia maambukizi. Ulinganisho wa sumu ya orb weaver na sumu ya buibui mbaya zaidi: _ Hatari kwa wanadamu Buibui wa orb weaver hawajulikani kutumia sumu yao kwa madhumuni mabaya, na kuumwa kwao ni tukio nadra. Wao hutumia nyuzi zao kutengeneza hariri kwa ajili ya kutengeneza mawimbi yao magumu ya kuvua mawindo. Kwa muhtasari, buibui anayeitwa orb weaver si tisho kubwa kwa wanadamu, na sumu yao si yenye sumu sana. Dalili za kuumwa ni nyepesi, na matibabu ni sahili na yenye matokeo. Buibui hao ni wenye manufaa zaidi kwa mazingira yetu kuliko kuwa hatari kwetu. Mnyama anayeitwa Orb weaver, ambaye ni wa familia ya Araneidae, ni muhimu sana katika kudhibiti idadi ya wadudu. Mtandao wao wa hariri wenye kunata huwawezesha kukamata wadudu wadogo mbalimbali, na hivyo kudhibiti idadi yao. - Kula: Kwa kawaida waokaji wa orb hula wadudu, kama vile mbu na nzi. - Wanyama-mwitu: Buibui hao pia hutumika kama chanzo cha chakula kwa ndege, wanyama wanaotambaa, na viumbe wengine wanaokula wadudu. Wanyama hao wana uwezo wa kubadilika-badilika na kuwa na uwezo wa kuishi. Wanaweza kuishi kwa mwaka mmoja hadi mbili katika mazingira ya porini, ambayo ni muda mrefu kwa buibui. Jitihada za kuhifadhi zinapaswa kukazia kuhifadhi makao yao na kupunguza matumizi ya dawa za kuua wadudu. "Kama ilivyoelezwa hapo juu, ""Spiny Orb Weaver"" ni aina ndogo ya ""Spiny Orb Weaver"" ambayo ina sehemu ya ""web"" ya kawaida ya spiny orb, ambayo ni sehemu ya ""web"" ya spiny orb, ambayo ni sehemu ya ""web"" ya spiny orb, ambayo ni sehemu ya ""web"" ya spiny orb, ambayo ni sehemu ya ""web"" ya spiny orb." Kwa miaka mingi, tovuti yetu, whatsthatbug.com, imepokea mamia ya barua na picha za kuvutia zinazotuuliza juu ya wadudu hawa. Ruka chini ili uone baadhi yao. "Mfano wa ""Orchard Orbweaver"" ni aina ya buibui wa Florida, ambayo ni aina ya buibui wa Florida, ambayo huitwa ""Orchard Orbweaver"" kwa sababu ya aina yake ya buibui." Leucauge venusta, aina ya buibui anayepatikana katika mashamba ya matunda, ni aina ya buibui anayepatikana katika maeneo ya kusini-mashariki mwa Marekani. Kulingana na BugGuide mazingira yake ni: <unk>Woodlands. Inajengwa katika vichaka vya chini au miti midogo, karibu na ardhi <unk> na inaweza kutambuliwa na <unk> Tumbo lililoinuka kidogo lililo na madoa ya fedha, manjano, nyeusi, kijani, na machungwa au waridi. "Kama vile ""Mwenyeji"" na ""Mwenyeji"" ni viumbe wawili, na ""Mwenyeji"" ni viumbe wawili, na ""Mwenyeji"" ni viumbe wawili, na ""Mwenyeji"" ni viumbe wawili." Thunder Bay, Ontario, Canada, Oktoba 26, 2015 Nimepata buibui wawili kama hao nyumbani mwangu mwezi uliopita. Kutokana na kile nimechunguza kwenye mtandao inaonekana kama ni hypsosinga pygmaea. Je, unaweza tafadhali kuthibitisha kwamba kwa ajili yangu?? Na siwezi kuonekana kupata kama wao ni sumu au la. Asanteni mapema. Saini: Im si uhakika nini hii ni kuuliza? "Tunakushukuru kwa kile tunachoamini ni utambulisho sahihi wa spishi mpya kwa tovuti yetu, na tunajua jinsi ngumu baadhi ya utambulisho inaweza kuwa. """ "Tunategemea makubaliano yetu na utambulisho wako kwenye picha zilizowekwa kwenye BugGuide, na ingawa BugGuide haina habari maalum juu ya spishi tunaweza kuelezea kwa msingi wa habari ya familia. """ Buibui wengi ni wenye sumu, lakini ni wachache sana wana sumu yenye nguvu ya kutosha kumdhuru mwanadamu au viungo vyenye nguvu vya kutosha kumkemea mwanadamu. Kuumwa na buibui kwa kawaida huathiri tu sehemu fulani ya mwili, kwa hiyo si hatari kwa wanadamu. "Kama ilivyoelezwa katika kitabu cha ""Bugguide,"" ""Orb weavers"" ni buibui wa hali ya chini na wasio na uhasama ambao hukimbia kwa ishara ya kwanza ya tishio (kwa kawaida wao hukimbia au kuacha mtandao)." Wao si hatari kwa watu na wanyama wa kufugwa, na ni kweli kabisa manufaa kwa sababu wao kukamata na kula mengi ya wadudu wadudu aina. "Kama ilivyoelezwa katika makala ya ""Mwanamke wa Hawaii"" ya ""Argyle Appens"" (Jumanne, Februari 27, 2009) ""Mwanamke wa Hawaii"" (Jumanne, Februari 27, 2009) ""Mwanamke wa Hawaii"" (Jumanne, Februari 27, 2009) ""Mwanamke wa Hawaii"" (Jumanne, Februari 27, 2009) ""Mwanamke wa Hawaii"" (Jumanne, Februari 27, 2009) ""Mwanamke wa Hawaii"" (Jumanne, Februari 27, 2009) " Baada ya muda fulani, alishika mtandao wa mwanamke. Sikuwa na picha ya ndoa halisi. Sina uhakika ni nini kilichotokea. Hata hivyo, najiuliza kama kiungo kidogo na kiungo upande wa kushoto wa kichwa chake ni viungo vya ngono na au vifurushi vya shahawa? Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii, Hawaii. Mbwa-mwitu huyo mdogo zaidi atatumia wakati mwingi katika wavu wa mwanamke mpaka apate nafasi ya kujamiiana. Akizungumzia spishi inayohusiana na hiyo, Argiope aurantia, BugGuide anataja kwamba vidole vya buibui wa kiume ni viungo vya uzazi. Tovuti ya Biodiversity Explorer inazungumzia viungo vya ngono vya buibui hivi: <unk> Viungo vya ngono vya Araneomorpha, au buibui wa kweli, vina sifa za entelegyne. Palps ya kiume ni kupanuliwa distally (katika mwisho) kutokana na vipengele tata copulatory au bulbs viungo vya uzazi kwamba kufanana glavu ndondi. Baadhi ya buibui wa kiume wadogo wana vidole vikubwa sana ikilinganishwa na ukubwa wa mwili wao. Viungo vya uzazi vya kiume na vya kike ni maalum sana na hufanya kazi kwa kanuni ya "kufunga na ufunguo". Viungo hivyo hutumiwa kutambulisha buibui kwa kiwango cha spishi. Viungo vya uzazi vya mwanamke, epigyne, viko katikati (chini) kati ya mashimo ya booklung kwenye mteremko wa epigastric. Epigyne ni nyeusi, glossy, chitinous, oval kwa bamba mviringo na kufunguliwa mbili. "Kama ilivyoelezwa katika taarifa ya ""Audio-Sunday"" ya Jumatatu, Februari 27, 2009, saa 12:01 AM, ""A pair of Orbweavers from Hawaii Argipoe Appens mating activity"" (Pia, Februari 27, 2009, saa 12:01 AM) ni picha ya mwanamke mmoja kutoka Hawaii." Pia, mwandishi anachanganya stabilimentum na jambo linalohusiana na uzazi. Maoni niliyoyafanya juu ya wanaume wa Maui ni kwamba wana alama chache sana kwenye mgongo wao kama wanawake. Pia ni wadogo sana wakilinganishwa na wanawake. Watu wengi kabisa kukosa wavulana kutembea nje upande mwingine wa mtandao kwa sababu ya X-umbo yao na ukubwa wa jumla wa wasichana hawa. Pia, kuhusu picha ya kwanza <unk> kiume ingekuwa haja ya kuwa upande mwingine wa mtandao. Ni mahali pazuri zaidi pa kunywa chakula kinachotolewa na mwanamke. Lakini ni nani anayejua wanafanya nini wakati mimi si kuangalia yao? Ha! Ha! "Kama ilivyoelezwa katika makala ya ""Bugguide"" ya Argiope Aurantia, ""Mwanamume ni kubwa sana ikilinganishwa na kile nilichoona hapa Maui kwa Appensas.""" Bila shaka, kwa sababu ya jinsi wanyama wanavyoweza kuzoea mazingira yao, hawa wa Kaua`i na hao wa Maui wanaweza kuwa tofauti! Hivi sasa, kutokana na hali ya hewa ya mvua na upepo mkali katika Haiku, Appensas zetu ni kujificha katika maeneo yao sahihi salama hivyo siwezi kutuma picha ya jozi hapa. Nitahakikisha unapata picha ninapoweza. Pia itatia ndani picha ya mifuko ya mayai, ambayo huonekana kama chanzo cha chakula kilichotumiwa kilichopakiwa. Picha hizi ni kutoka chini ya Kula juu ya Maui <unk> 30 Julai 2005. Nilikuwa na nyumba yenye bafu ya nje na wasichana hao walishiriki kazi za kupunguza wadudu kwa ajili yangu. Mahalo <unk> Asante <unk> kwa furaha yote ambayo juhudi zako huleta ulimwenguni. Asanteni kwa kurekebisha kosa letu Eliza. "Mfano wa ""Araneus cingulatus"" ni buibui wa rangi ya kijani, rangi nyekundu na nyeupe, na rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi ya rangi." Nilikutana na msichana huyu mzuri katika nyumba yangu ya nyumbani mnamo Julai 2009 huko New Jersey. Sijawahi kumwona kabla au tangu wakati huo. Mfano ni kweli baridi, hawajaweza kupata kitu chochote kuhusu yeye hapa au online. Ni jambo la kusikitisha sana kwamba mnyama huyo mrembo mwenye rangi ya kijani-kibichi, Araneus cingulatus, hana jina la kawaida. Unaweza kuona picha za ziada kwenye BugGuide. "Mfano: ""Eriophora ravilla"" (Sikukuu ya Jua, Florida, 16 Machi, 2012 5:31 PM) " Asanteni kwa kuchukua muda wa kuchunguza pendekezo langu. Nilimpata mtu huyu baada ya dhoruba mbaya sana ya mvua. Yaonekana alikuwa ameweka wavu wake kutoka tawi la mti hadi juu ya kichaka cha chini. Hii ni mara ya kwanza nimeona buibui hii kama hii; Mimi nina pretty vizuri ukoo na buibui wa Kusini mwa Florida kama mimi kuwa na crippling arachnophobia. Urefu wake ulikuwa karibu nusu-mita hadi nusu-mita, na hakukuwa na kitu chochote cha ajabu au cha mapambo kuhusu utando huo ambacho kingedokeza kwamba alikuwa mtengenezaji wa nguo. Sikuweza kuona wadudu wowote waliokamatwa kwenye mtandao wake, na sikuwa na fursa ya kuitazama kwa muda wakati wasanifu wa mazingira walipokuja na "kuihamisha". Ningekuwa na furaha kujibu maswali yoyote ambayo huenda sikuwa nimefikiria, ingawa sikukusanya habari nyingi nitajaribu kusaidia. Asanteni sana! Sisi haraka kutambuliwa Orbweaver yako kama Eriophora ravilla juu ya BugGuide. Ndege hao wanaweza kuumwa wakishughulikiwa bila uangalifu, lakini si wenye jeuri. Kwa kweli mara nyingi wao ni wabaya sana wanapokuwa nje ya majani yao. Kulingana na BugGuide: <unk>Vipepeo hao hutengeneza mawimbi yao, ambayo yanaweza kuwa na upana wa meta nyingi, jioni. Wakati wa usiku wao huketi katika wavu. Wakati wa mchana, wao kawaida kujificha katika jani rolled-up mahali fulani karibu na ukingo wa mtandao. <unk> Sijui kama ni sawa kujibu barua pepe hii, lakini hapa huenda... Asante kwa majibu yako ya haraka. Nimekuwa kuchunguza picha nimechukua kwa karibu na alikuwa na wazo ilikuwa orb-weaver katika nyuma ya akili yangu. Kwa mfano, unaweza kuona kwamba nyuzi za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba za kamba. Pia, golden orb-weavers ni kama mtazamo wa kawaida katika eneo langu, nadhani si kuvuka akili yangu kutakuwa na aina tofauti katika kitongoji. Ni funny, nilikuwa tu kujadili tabia ya buibui hii na kutoweka kwake na reappearance. Nilikuwa na wasiwasi kwamba ilikuwa ni wakati wa mchana, wakati niliona kwamba mtandao haukuchukuliwa na landscapers, lakini buibui bado haikuwapo. Sijui kama ni muhimu katika hatua hii, lakini mimi alichukua picha nyingine tu sasa... wakati huu wa chini yake. Kwa vyovyote vile, jibu lako lilikuwa sahihi kabisa na asante tena kwa mabadiliko ya haraka. "Kama ""Mwanamume wa Bug"" (Bugman) - ""Mwanamume wa Bug"" (Bugman) - ""Mwanamume wa Bug"" (Bugman) - ""Mwanamume wa Bug"" (Bugman) - ""Mwanamume wa Bug"" (Bugman) - ""Mwanamume wa Bug"" (Bugman) - ""Mwanamume wa Bug"")" Ilikuwa katika mabwawa katika New Jersey Pine Barrens, katika kusimama ya Miti ya Msedari. Pia, katika eneo hilo kulikuwa na mimea ya pitch pine, blueberry, lichen, na mimea mingine mbalimbali ya maeneo yenye unyevunyevu. Buibui huyo alikuwa mdogo, labda alikuwa na urefu wa sentimeta moja na nusu. Nilikutana na hii leo, Aprili 25. Hizi ni picha zangu mwenyewe. Asanteni sana! "Kama unavyoona, ""Shawn McClure"" ni aina ya kiumbe anayeitwa Araneus bicentenarius, ambaye ni mnyama anayeitwa Giant Lichen Orbweaver." Utambulisho sahihi unaweza kuwa mgumu kwa sababu kulingana na wakati wa mwaka, eneo lako na ukubwa unaoonyesha, hii ni uwezekano wa mtu asiye na ukomavu ambaye atakua katika vuli. "Kulingana na BugGuide, ""habitat"" ni: ""Woodlands, juu ya miti, kati ya lichens.""" "Mwanamke huyo, ambaye ni mwanafunzi wa shule ya sekondari ya Merrimack, NH, aliandika hivi: ""Nilimfuatilia na kumwita Ilsa." Kwa kweli, mimi hufuatilia wadudu wakati wote, lakini kwa kuwa yeye hukaa mahali pamoja, mimi ni kama kushikamana naye. Picha hizi ni zake wakati wa kusafisha mtandao. Ilikuwa ya ajabu sana kutazama na kupiga picha. Alikamata kila kamba, akala maiti ndogo, kisha akaziweka chini yake, kisha akaikata kamba alipomaliza. Hii ni dhahiri si Wolf Spider. Yeye ni Orbweaver katika familia Araneidae. Wanyama hao hawawezi kuondoka kwenye wavu wao, na wanaweza kuwa wabaya sana wanapolazimika kufanya hivyo, licha ya jinsi wanavyovutia wakati wa kushughulikia nyuzi za wavu wao. Unaweza kusoma zaidi juu ya familia kwenye BugGuide na kulinganisha <unk>Ilsa<unk> na picha zilizowekwa huko. Kwa kusikitisha, hatujisikii wenye uwezo wa kumtambulisha Lisa kwa kiwango cha spishi, ingawa tunashuku jenasi yake ni Araneus. Uchunguzi wako wa mazoea ya kulisha ya "Ilsa" ni wa kuvutia sana. Daniel...ilsa, si Lisa na kwa habari, Shukrani!!! Ed. - Ed. - Ed. Kumbuka: Marekebisho yamefanywa. "Kama ilivyoelezwa katika makala ya ""Makubaliano ya Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti wa Utafiti." Kama ni hivyo, I'll kuunganisha yake kwa blogu yangu, kushiriki juu ya Facebook, nk. Nilipata barua pepe ya kuagiza mapema kutoka kwako. Sasa tunaweza kuunganisha na ukurasa wa habari BugGuide juu ya Grey Msalaba Spider. Kitabu hicho kitatolewa Oktoba 2010. "Kama ""Eriophora ravilla"" (mwenye manyoya ya nusu dola) katika Orlando, Florida, Marekani, tarehe 22 Machi, 2012 saa 9:43 jioni, alitoa taarifa kwamba alikuwa amewaona buibui hao nyumbani kwake." Ni vigumu sana kuwapiga picha kwa sababu hutoka nje usiku tu na hujenga mitandao mikubwa hewani. Mwaka huu, kuna watu wawili ambao wana umbali wa mita tano kati yao. Wamekuwa wakijenga mitandao yao kila usiku kwa juma lililopita au zaidi. Kufikia asubuhi, mawingu hayo yametoweka na hivyo ndivyo na buibui. Miili yao ni kama sarafu ya senti tano, na ikiwa miguu yao iko mbali, ni kama sarafu ya dola nusu. Miguu inaweza kuenea kwa karibu inchi 4 au 5 ningeweza kufikiria. Wamejenga mtandao wao kati ya nyumba yangu na nyumba ya majirani zangu ni kuhusu futi 15-20 Hapa kuna picha na video. Wao ni nini? "Mwanamke huyo, Matt Batt, aliandika hivi: ""Nimekuwa nikimtazama kwa muda mrefu sana, na nimesikia kwamba aina ya buibui huyu ni aina ya buibui anayeitwa Eriophora ravilla." Wiki iliyopita, tulitoa picha nyingine kutoka Florida. "Kama ""Mwenyeji wa Kihispania"" (Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania""): ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania: ""Mwenyeji wa Kihispania""")" Kwa kawaida mimi ni uwezo wa kupata angalau Genus ndani ya dakika, lakini rafiki ya rafiki alinitumia picha ambayo ina mimi kidogo stumped. Ni buibui wa kike mwenye rangi ya kijivu, bila wavu unaoonekana, akiwa na sehemu fulani zenye kupendeza kwenye mgongo wake. Nilijaribu kufanya utafiti fulani, lakini ninaendelea kupata mambo yasiyo na maana. Yeye ni nani? Ningependa kujua! Alipatikana katika eneo la San Francisco, California, na rafiki yake mmoja aliamua kumkamata katika eneo la East Bay. "Kumbuka: ""Orbivora"" (Araneus gemma) ni aina ya buibui." "Kama ilivyoelezwa katika makala ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013"" ya ""Mwaka wa 2013.""" Ingawa picha hiyo inafanya ionekane kuwa ya kahawia. Kwa kweli, rangi ya rangi ya machungwa ni sawa na rangi ya kijani, lakini kwa nini spider hii haijulikani? Saini: Asante mapema, Txfinest Hii ni moja ya Orbweavers katika jenasi Araneus. Inafaa maelezo ya Araneus gemma ambayo BugGuide inaelezea kama: <unk>carapace na tumbo hutofautiana katika rangi kutoka kijivu hadi rangi ya zambarau. "Bugguide inaorodhesha eneo hilo kama: ""Kupitia pwani ya magharibi ya Amerika ya Kaskazini kutoka kusini mwa Alaska hadi kusini mwa California na ndani ya nchi hadi magharibi mwa Montana.""" "Mwanzoni mwa mwaka wa 2005, wakati wa kambi katika Ziwa Saranac, NY, nilikuwa nikiketi karibu na moto wa kambi na marafiki wakati buibui huyu alimaliza kwenye bega langu kwa njia fulani. """ Nilimweka ndani ya kikombe na kupiga picha kabla ya kumrudisha msituni. Sikuzote tulijiuliza ni buibui wa aina gani na kwa nini tumbo lake lilikuwa kubwa hivyo. Kwa mfano, katika eneo la Saranac Lake, New York, kuna idadi kubwa ya watu wanaotaka kugundua Orbweaver. Maombi hayo huenda yakawa mengi kuliko mengine yote wakati huu wa mwaka. Sababu kuu ni kwamba buibui wa kike wa Orbweaver wamepata ukubwa wa mtu mzima na wameonekana sana. Mara nyingi mawimbi hayo maridadi ya mviringo yako katika maeneo yenye manufaa. Tuna wanawake watatu wenye afya wanaofunga nyuzi kila usiku karibu na taa ya ukumbi wetu. Kila usiku wao hutengeneza mtandao mpya na kusubiri wadudu ambao huvutiwa na mwanga, na buibui wamekua wanene sana kwa sababu ya kufungwa kwa mtego mzuri. Wakati Orbweaver ni katika genus Argiope, tunaweza, kwa kiwango cha uhakika, kutoa jina la spishi, lakini wakati Orbweaver ni katika genus nyingine kama Araneus au Neoscona, hii ni mara nyingi vigumu sana kwa ajili yetu. Kuna ulinganifu mwingi kati ya spishi, na tofauti nyingi ndani ya spishi moja. "Kama ilivyoelezwa hapo juu, ""Araneus trifolium"" ni aina ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea ya mimea." Kuangalia picha zilizowekwa kwenye BugGuide kwa spishi hii inapaswa kutoa wazo fulani la tofauti ya mtu binafsi. Mimi nina uhakika kwamba <unk>shamrock orb weaver<unk> posted hivi karibuni ni kweli rangi awamu ya <unk>marbled orb weaver,<unk> Araneus marmoreus. Wao ni jamaa wa karibu sana wa buibui anayeitwa shamrock (A. trifolium), kwa hiyo ni rahisi kuwachanganya! "Kama ""Orbweaver"" Spiderlings, eneo la Bay Area, California, Aprili 17, 2011: ""Ninafanya kazi katika shule ya chekechea kaskazini mwa California na nilipata hizi zote juu ya moja ya miundo yetu ya kucheza wiki chache zilizopita." Tuna aina zote za buibui, si wote wao nzuri...unaweza kuniambia hizi ni nini? Saini: R. Allen Mpendwa R. Allen, Tunaamini haya ni Orbweaver Spiderlings. Vipepeo hao ni buibui wazuri sana na hawaoniwi kuwa hatari. Picha yako haitachapishwa hadi baadaye katika wiki hii kwa sababu tunaiweka pamoja na machapisho mengine kadhaa kwa kuzingatia likizo yetu fupi. Asanteni sana! "Kama ilivyoelezwa katika barua ya 13 ""Orbweaver Spiderlings"" (Stuartstown, PA, Mei 21, 2011) ni ""Mimi ni mpenzi wa watu wa Mungu.""" Nilikuwa najiuliza nini hii wingi manjano ilikuwa. Nilipata ikining'inia kwenye jani la shasta daisy katika bustani yangu ya kudumu. Inaonekana kuwa karibu imesimamishwa na mtandao dhaifu sana wa buibui unaozunguka, haukuongezeka kweli juu ya chochote. Labda inchi 1-2 kwa urefu. Sikuwa na uhakika kama ilikuwa wingi wa mayai ya wadudu au kuvu la muundo imekuwa wiki mbili za mvua sana. Tunaamini kwamba hizi ni spiderlings Orbweaver spiderlings hivi karibuni hatched. "Wanaweza kuenea kwa kutupa kamba ya hariri na kukamata upepo, mbinu inayojulikana kama ""ballooning.""" Asante sana Daniel. Natumaini kwamba ndivyo walivyo. Nitaangalia kwa makini. PS <unk>Spiderlings<unk> ni neno kubwa. "Kama ilivyoelezwa katika barua ya ""Orbweaver Spiders"" iliyochapishwa katika gazeti la ""The Guardian"" la Vancouver, Canada, Novemba 27, 2011, ""Tunashukuru kwa jibu lako la haraka." Ninafurahi sana kwamba niliweza kutoa kitu kipya kwa tovuti yako. Picha tatu za juu: picha ya kwanza ya damselfly (na matumaini inaweza kusaidia katika utambulisho), picha ya pili ya karibu ya kundi la spiderlings, labda ya Argiope aurantia. Picha ya mwisho ni ya buibui anayeruka. Si wadudu (au hata wadudu! (Kumbuka, mimi si kuamua kama mimi ni kuitumia katika. Picha zote zilipigwa mahali palepale ambapo nahodha huyo alikuwa, kando ya ufuo wenye miamba. Kwa njia, kuhusu kesi iliyopendekezwa ya kubeba nondo, ilikuwa huko Hong Kong kwamba walipatikana (rafiki yangu alichukua picha hizo za awali). Tunafurahi sana kuchapisha picha yako ya Orbweaver Spiderlings. "Kama vile tunavyojua, ""Golden Orchid"" ni aina ya Argiope aurantia, ambayo ni aina ya kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi cha kipenzi." "Kama ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist"" katika ""Specialist""" Wakati wowote mimi kuona na bug ya kuvutia mimi kuja hapa kuchunguza ni. Nimekusanya baadhi ya picha bug kwamba mimi tu alitaka kushiriki. "Kama unavyotaka barua yako iandike: ""Jane, asante kwa maneno yako ya fadhili." Kwa kweli tunapenda picha yako ya Orbweavers wachanga ambao bado hawajaenea. Tutafanya chapisho tofauti la Centipede uliyowasilisha. 16 - Mnyama wa aina ya Orbweaver Spiderling Ni aina gani ya chakula hicho? "Kama ilivyoelezwa hapo juu, eneo la ""Mill Valley"" (California) ni karibu na San Francisco, California Kaskazini, na wakati wa ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi"" ni karibu na ""Mimi""" Mume wangu aliamua kumpiga kwa kifaa chetu cha kuua wadudu na TONS za buibui wachanga waliotawanyika kila mahali. Jambo hilo liliniogopesha sana. Sijawahi kamwe kuona kiota kama hiki! Kutoka mbali ilionekana kama kipande cha mmea au mti. Picha mbili za kwanza zinaonyesha wakiwa wamekutana pamoja na picha ya pili inaonyesha wakitawanyika. "Kama unavyotaka barua yako iandikwe: ""Alison, hawa ni vifaranga wasio na madhara, na yaelekea wametoka kwenye mayai hivi karibuni." Mara nyingi, vipepeo hao wachanga hutembea kwa njia ya kuruka kwa upepo: wao hutengeneza kamba ya hariri ambayo huvutia upepo na kusafirisha vipepeo hao mbali sana kutoka mahali walipoanguliwa. "Brazil: ""Siri ya Stink Bug"" inapatikana katika eneo la kaskazini mashariki mwa Brazil, na inaonekana kuwa na athari kubwa kwa jamii ya spider." Mara kwa mara, watu wengi huona mimea hiyo ikiwa na utando ambao hufanyizwa kati ya matawi. Mwanzoni, inaonekana kuwa na miguu minne, lakini ukitazama kwa karibu, miguu yao imegawanywa katika vikundi vinne. Wao huketi katikati ya wavu mchana na usiku na ni WARUHU sana wakati mdudu anapowasili kwenye wavu wao. Nilikuwa nikichukua chungu na kukitupa ndani na kutazama buibui wakifanya kazi yao, ambayo ilikuwa yenye kufurahisha sana. Nyumba moja niliyoishi ilikuwa na vitu kama 20 hivi katika bustani ya nyuma. Sijui jina la Kibrazil kwa ajili ya hii moja ingawa. Nilitafuta picha za buibui katika Kaskazini-Mashariki mwa Brazili hadi nilipopata buibui niliyokuwa nikimtafuta. Hapa ni 🙂 Asante sana! Buibui huyu ni Orbweaver katika jamii ya Argiope, na inaonekana kwamba amemkamata Mdudu Mdudu. Asanteni sana kwa utambulisho huo. Baada ya kupokea jibu lako, nilijifunza zaidi juu ya jamii hii na pia nikagundua kuwa hawawezi kuumiza wanadamu isipokuwa wakitendewa vibaya, na ikiwa wamenyongwa, sumu yao ni dhaifu sana. Sikuzote nilifikiri vinginevyo kwa sababu ya tumbo lenye rangi nyangavu! Mnyama huyo pia ana sumu inayoitwa Argitoxin (ArgTX-636), ambayo ni sumu inayotokana na sumu ya mnyama. Ni spishi yenye kustaajabisha kama nini! "Kama ilivyoelezwa katika makala ya kwanza ya ""Crater Lake,"" ""Crater Lake"" ni moja ya maeneo ya Oregon, Marekani, ambayo ni sehemu ya Crater Lake, Marekani, na ambayo ni sehemu ya Crater Lake, Marekani." Je, umewahi kuona moja kama hii? Najiuliza ni aina gani ya buibui iliyofanya hili? Ikiwa una wakati tafadhali nijulishe. "Kama unavyoona, ""Spiderweb"" ni picha nzuri sana." "Hatuwezi kukuambia spishi, lakini hii ni mtandao wa moja ya Orbweavers katika familia Araneidae. """ Rangi ni labda udanganyifu kuundwa na hariri na unyevu kutenda kama prism wakati hit na mwanga kutoka mwelekeo kamili. "Katika utafiti wetu wa kitabu hiki, ambacho lazima kikamilishwe katika siku kumi na sita, tulipata tovuti hii ya ajabu ambayo ina picha za ""webs"" za buibui zilizozungukwa wakati wa ushawishi wa dawa mbalimbali." "Kama ilivyoelezwa hapo juu, ""Wakati tukijaribu kuunganisha na makala ya Spiders on Drugs, tuligundua viungo vyetu vya zamani havikuwa tena vikiongoza wasomaji kwenye makala ya awali tuliyoitaja, lakini tulipata tena kwenye Priceonomics." "Kama ilivyoelezwa katika barua ya kwanza ya ""Orbweaver Web Back Porch Spider"" iliyoandikwa Agosti 29, 2010, ""Haya Daniel na Lisa, buibui huyu amekuwa mkali sana kwa wiki iliyopita." Imenifundisha kuangalia kabla ya kutembea kwenye ukumbi wangu wa nyuma. Mtandao tatu katika siku sita ulijengwa usiku mmoja ili kunikwaza, kunisafisha nywele, au kunizuia nisitumie ngazi za nyuma! Hapa, ni amelala katika kusubiri kwa ajili ya kiamsha kinywa! Je, ni buibui anayefanya kazi ya kutengeneza miamba au ni kitu fulani hususa zaidi? "Kama ""Mlipuko wa Mvua"" wa Mvua ya Mvua, tunafurahi kuwa na picha ya buibui wa Orbweaver na mtandao wake na kutoa maelezo ya shughuli za usiku za buibui." Kila mwaka, wakati majira ya kiangazi yanapokaribia mwisho na siku za majira ya kupumzika zinafupika, tunapokea maombi mengi ya kutambua buibui wa Orbweaver na maswali kuhusu hatari wanayoweza kusababisha. Buibui wenye utando wa mviringo katika familia ya Araneidae (tazama BugGuide) si wakali na hawachoki mara nyingi. Kuumwa, katika tukio lisilo la kawaida kwamba hutokea, si mbaya na kusababisha uvimbe mdogo wa mahali na uchungu. Wanyama hao hawawadhuru watu na wanapaswa kuruhusiwa kutengeneza mitandao yao na kuvua wadudu wanaoruka kama vile nzi na mbu. Picha yako inaonyesha mtandao wa kawaida wa orb. Tunashuku buibui wako ni wa jamii ya Araneus. "Kama ""Orbweaver na Wanyama"" (Mwanamke wa Orange) Leander, Texas (Karibu na Austin) Oktoba 20, 2010 8:24 AM Mimi kuweka na kuzaliana tarantulas, na kuwa na uthamini mkubwa kwa ajili ya ""kweli"" buibui." Kuna aina 860 za Theraphosidae, lakini aina hizo ni za kawaida. Msichana huyu mzuri ni <unk>hanging out<unk> juu ya deck yangu, ziko katika Leander, TX, kuhusu dakika 10 nje ya Austin. Sijawahi kuona kitu kingine chochote isipokuwa Latrodectus chenye alama za ajabu kama hizo kwenye tumbo. Kiumbe huyu mrembo ni nani? Tarantula Terri ni aina ya kiumbe anayeitwa Orbweaver. Katika majira ya kupukutika kwa majani, muda mfupi kabla ya Halloween, buibui wengi wamekomaa na kufikia ukubwa wao kamili. Wanyama hao, hasa wale wanaoitwa Orbweavers, huonekana waziwazi wanapokuwa wakizungusha nyuzi kubwa za mviringo na kujiweka ndani ya nyuzi hizo. Wao huvutia uangalifu mwingi. Inaonekana mwanamke katika picha yako amemkamata Yellow Jacket. "Mwanamke huyo, ambaye ni ""Orbweaver"" na anajulikana kama ""Spider-Man,"" aliishi katika eneo la Navegantes, kusini mwa Brazil, na alipata nafasi ya kuwasiliana na mtoto huyo." Ni territorialist, mimi kamwe kupatikana yoyote buibui karibu na hilo, aina hiyo hiyo, wala aina nyingine. "Julian Silva, ""Orbweaver"" katika familia ya Araneidae, ni familia isiyo na madhara na yenye manufaa ambayo wanachama wake mara chache hupotoka mbali na mawingu yao yenye umbo la mviringo." Ukiangalia kwa makini upande wa kushoto wa mwanamke huyu mdogo, utaona kile kinachoonekana kama spiderlings mpya zilizozaliwa. Punde si punde watatawanyika kwa kuruka kwa puto. "Cesar Crash, ambaye anaendesha tovuti yetu ya dada nje ya Brazil, Insetologia, anaweza kutoa utambulisho wa spishi.""" "Kutokana na taarifa ya Cesar Crash, ""Sasa tunajua kwamba hii ni Nephilengis cruentata katika familia ya Orbweaver Nephilidae, si Araneidae.""" "Kama unavyoona kwenye picha za Flickr na Insectologia, ""Barua 22"" ni kipepeo cha kijani kibichi cha Orchard Orbweaver, Novemba 9, 2009 Nilipata kipepeo hiki kikiwa kiko mlangoni mwangu wa mbele wakati dada yangu alipokuja kutembelea leo." Nilichukua kamera yangu ili nijaribu kuitambua. Buibui wako mrembo ni Orchard Orbweaver, Leucauge venusta. Unaweza kupata habari zaidi kwenye BugGuide. "Mfano wa ""Swampy"" ni ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina, ""Swampy"" kutoka Argentina." Hasa, shamba la mizabibu la Elsa (lithibitishwa kuwa lenye kudumu) linaloendeshwa na Bianchi Winery, San Rafael, Mendoza. Nilipata picha hapa kwenye Whats That Bug ya argiope ya fedha wakati hiyo ilikuwa ya manjano zaidi, buibui huyu alikuwa wazi zaidi ya fedha / kijivu. Mti huo ulikuwa na safu mbili za mizabibu, na mti huo ulikuwa na safu moja ya mizabibu na mti mwingine wenye nguvu nyingi uliokuwa na urefu wa zaidi ya meta tano. Natumaini wewe kama hayo. Picha ya Brian Erickson inaonyesha tofauti kubwa kati ya jinsia mbili za Argiope argentata. Tofauti kati ya ukubwa wa buibui wawili katika picha yako inaonekana kuwa kubwa hata kuliko ile ya buibui wa hariri ya dhahabu. "Kama ilivyoelezwa katika barua ya Januari, ""Shirikina ya St. Andrew's Cross Spiders kutoka Malaysia"" ilitolewa na ""Shirikina ya St. Andrew's Cross Spiders kutoka Malaysia"" mnamo Novemba 27, 2013 na ""Shirikina ya St. Andrew's Cross Spiders kutoka Malaysia.""" Kwa kawaida buibui niliopata ni buibui wa kawaida wa nyumba ndogo. Lakini hii moja niliyopata hivi karibuni katika bustani yangu ni aina ya ajabu. Ni yenye rangi nyingi na kubwa sana ikilinganishwa na zile ambazo mara nyingi hupatikana. Je, ni sumu au hatari kwa njia yoyote? Mimi nina wasiwasi wa kuruhusu dada zangu wadogo kucheza huko na kwamba buibui haijulikani karibu... Saini: Curious mtoto Dear Curious mtoto, buibui kubwa katika picha yako ni mwanamke Orbweaver katika jenasi Argiope, na wao si kuchukuliwa buibui hatari. Aina kubwa zaweza kuuma na zina sumu, hata hivyo kuumwa hakukubaliwi kuwa hatari kwa wanadamu. Huenda ikawa na mmenyuko wa mahali hapo wenye uchungu pamoja na uvimbe na uchungu, lakini hakutakuwa na uharibifu wa kudumu iwapo kidonda kitatokea. Buibui hao hubaki katika majani yao na hawatala isipokuwa wakishughulikiwa kwa uangalifu. Ukitazama kwa makini, utaona buibui mdogo zaidi katika wavu. Huyu ni mwanamume. Mara nyingi kuna tofauti kubwa ya ukubwa kati ya wanawake wa Orbweavers, ambao wanaweza kuwa kubwa sana, na wenzao, ambao wanaweza kuwa ndogo kama 1 100 ya ukubwa wa mwanamke. Tutajaribu kuamua spishi baadaye katika siku wakati tuna muda wa ziada wa kufanya utafiti. Leo, 30 Novemba, ni siku ya barua ya polepole, kwa hivyo tulikuwa na nafasi ya kurudi kwenye chapisho hili. "Kama tulivyoona kwenye ukurasa wa ""Argiope"" wa Malaysia, kuna aina ya buibui anayeitwa ""Argiope aemula.""" "Kama jina la ""A Guide to Common Singapore Spiders"" na ""St. Andrew's Cross Spider"" ni jina la kawaida, lakini jina hilo la kawaida tayari linashirikiwa na spishi tofauti ya jamii hiyo ambayo hupatikana Australia." "Jina la kawaida la ""St. Andrew's Cross Spider"" linarejelea ""X-shaped stabilimentum"" ambayo imeunganishwa katika mtandao wa orb na ambayo inaonyeshwa vizuri katika moja ya picha zako." Dave's Garden pia ina picha nzuri ya St. Andrew's Cross Spider yako. 25  Pale-colored Golden Orbweaver Subject: Large Orb  Albino? "Kama ilivyoelezwa katika barua ya barua ya ""Bugman"" ya tarehe 10:27 jioni, ""Nimeangalia picha nyingi za Orbs, lakini kiumbe hiki kinaonekana kuwa cha kipekee.""" Yeye inaonekana kuwa na muundo sahihi kwa ajili ya dunia nyeusi na manjano, lakini si rangi sahihi. Je, buibui wanaweza kuwa albino (zaidi ya wakazi wa pango dhahiri), mawazo? Jinsi unavyotaka barua yako itie sahihi: Adam Tawi Hatujui kama hii inachukuliwa kuwa albino ya kweli, lakini tunakubali ni Golden Orbweaver, Argiope aurantia. BugGuide ina picha ya mtu anayeonekana sawa ambaye anaitwa "morph ya rangi nyepesi" na picha hii ya BugGuide pia ni ya mtu mwepesi. "Kama ""Pet"" spider, ""Pet"" ni aina ya spider ambayo huja na spider na ""Pet"" ni aina ya spider ambayo huja na spider." Niliwapata wote chini katika kibanda kusini mwa British Columbia. Mimi ni curious kujua nini aina ya buibui wao ni na nini mimi lazima kuwa kulisha yao. Wao wote ni katika terrariums tofauti na shells chini na mimi nina kuwaweka katika chumba changu. Wakati ni mwanga nje, mimi kawaida kuweka yao katika luke- joto, eneo giza. Je, kwa kawaida wao hupendelea kufanya hivyo? Je, unaweza kunisaidia kuwatambua buibui hao? Wao ni wapendwa sana kwangu na ningesikitika sana ikiwa wangekufa kwa njaa. Asanteni kwa wakati wenu. Buibui wako wote ni spishi za Orbweavers, nao hutengeneza nyavu ili kuvutia mawindo. Unaweza kuwapa nzi au wadudu wengine unaowashika, au unaweza kwenda kwenye duka la wanyama na kununua vipepeo ili kuwalisha buibui. "Kama vile ""Long Jawed Orbweaver"" (Tetragnatha versicolor) na ""Bugguide"" (Bugguide) ni aina ya ndege aina ya long-jawed orbweaver." Kulingana na BugGuide, chakula chao ni "Manyama ya wadudu hasa". Buibui wako wengine wawili ni Orbweavers katika familia ya Araneidae, lakini hatujui ni spishi gani. Kulingana na BugGuide, <unk>Vyanzo vya chakula hutofautiana, lakini kwa kawaida wadudu wadogo wanaovua katika mitandao yao. "Mwanamume mmoja, ambaye ni ""Marmored Orbweaver"" (au ""Cobweb Weaver"" au ""Sheetweb Weaver"") aliwahi kuonekana katika bustani yake, akipiga majani ya lily na kuanguka kwenye shina la mti." Ilifanya hivyo haraka lakini kwa ustadi. Nimekuwa kupitia yote yangu tatu uwanja mwongozo na Bug Mwongozo, na siwezi kupata kitu karibu. Ninaishi katika Newton, New Jersey, juu katika kona ya kaskazini magharibi ya jimbo. Asanteni sana! Newton, New Jersey, Marekani - picha ya ajabu Kwa kuzingatia kuwa na pedipalps zilizositawi, viungo vilivyo karibu zaidi na mdomo, tunaweza kusema kwamba huyu ni buibui wa kiume. Ndege wa kiume wana mwelekeo wa kujitenga sana, na hawapigwa picha mara nyingi. Mara nyingi wanawake wakubwa zaidi hutengeneza mawimbi makubwa katika mahali palepale kwa muda mrefu. Wanawake ni wenye kukaa kidogo, wakipendelea kukaa nyumbani katika wavu na kukamata wadudu huku wanaume wadogo wakisafiri wakitafuta mwenzi. "Hii ni kwa sababu ya uwezekano wa kuwa na ""Marmored Orbweaver"" (Araneus marmoreus) ambaye ni mnyama wa kiume." "Tunaamini kwamba uwezekano wa utambulisho ni sawa na alama kwenye miguu na tumbo la sampuli yako na picha zilizowekwa kwenye BugGuide za wanawake wa ""Marbled Orbweavers.""" Kuna tofauti kubwa katika alama na rangi ya spishi nyingi za Araneus, na inawezekana kwamba spishi yako ni mwanachama mwingine wa jenasi au hata moja ya jenasi nyingine za Orbweavers. Tunakaribisha kwa furaha wasomaji wetu kusaidia katika utambulisho huu. Asanteni sana! Tovuti yako ni ya ajabu. Je, si jambo la kuchekesha, njia tunazoweza kuangazia maisha ya watu! "Eric Eaton: ""Hakuna mtu anayeweza kueleza familia ya buibui, na sina uhakika kama kuna mtu mwingine anayeweza." Id kuwa leaning kuelekea spiderweb weaver (Theridiidae) au sheetweb weaver (Linyphiidae), ingawa.... "Kama ""Siri ya kiume ya Orbweaver kutoka Australia"" (Situ: Spider isiyojulikana: Perth, Australia Magharibi, Septemba 16, 2013) ""Ningependa kutambua buibui hii ikiwa inawezekana"" Nadhani ni buibui wa Lynx, lakini baada ya kuangalia kupitia miongozo mbalimbali mtandaoni, siwezi kuona moja inayoonekana sawa?" Nilipata kwenye nguzo ya paka wangu ya kukwaruza kwenye veranda yangu huko Perth, Australia Magharibi. Urefu wa mwili takriban. 8mm kwa 8mm Ina muundo wa mosaiki wenye kupendeza kwenye tumbo. Picha ya kipepeo huyo ilionekana kuwa na umbo la macho ya kipepeo wa familia ya Araneidae. Vipande vikubwa vya miguu vinaonyesha kwamba huyu ni buibui wa kiume. Mfano wa mwili pia hutukumbusha wa Orbweaver Spiders, hivyo dhana yetu ya awali ni kwamba hii ni baadhi ya Orbweaver kiume, lakini hatuna kuwa na bahati yoyote kulinganisha na picha online. Labda mmoja wa wasomaji wetu atakuwa na bahati zaidi na kitambulisho. Kwa miaka mingi, tovuti yetu, whatsthatbug.com, imepokea mamia ya barua na picha za kuvutia zinazotuuliza juu ya wadudu hawa. Ruka chini ili uone baadhi yao. Barua ya kwanza <unk> Buibui na Kipepeo Tulipokuwa tukinyunyizia maji bustani, hatukuweza kujizuia kushangazwa na mchezo huu wa kuigiza wa nyuma ya nyumba. Kipepeo anayeitwa Marine Blue, Leptotes marina, alishtuka na kuruka kwa sababu ya mfereji wetu. Aliruka moja kwa moja kwenye wavu wa mtoto wa weaver wa orb, labda Jeweled Araneas ambaye alishika wavu katika mti wa limao, na haraka akafungwa na kunyonya kavu.