Currently viewing the category: "Orb Weavers"
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Subject: Someone recognize?
Location: Rio, Brazil
April 26, 2016 11:05 pm
Someone recognize this spider ?
Signature: Assaf

Silver Argiope

Silver Argiope

Dear Assaf,
This gorgeous spider looks to us like a North American species, the Silver Argiope, and there is a matching image of the ventral view on BugGuide.
  According to Corbis Images, the Silver Argiope, Argiope argentata, is also found in Brazil.  According to our sister site from Brazil, Insetologia, the Silver Argiope is known as Aranha de Prata.

This great, Daniel.
Thank you very much!
Assaf

What's That Bug? does not endorse extermination

Subject: Golden SIlk Orb Weaver
Location: East Java, Indonesia
March 29, 2016 12:04 am
Hi, I’m an amateur photographer and I found this Golden Silk Orb Weaver on a mango tree, all I know is that it is of Nephila Genus but I can’t find out about the species. Here’s the story :
The female spider is roughly about 3,5 – 4 inches long (including leg span), I also spot a smaller yet looked very different most likely to be the male roughly about 1 – 1,5 inches long including leg span. It has about 0,75 m x 1 m wide shiny golden web on one side of the mango tree. I also managed to get a sample of her silk which looks very pretty and shiny.
I’m very curious about the species.
Thank you.
Signature: A17N Photography

Golden Silk Spider

Golden Silk Spider

Dear A17N Photography,
You image showing the underside of this Golden Silk Spider does not reveal the markings, but one species found in Java, according to Getty Images, is
Nephila pilipes.   It appears that there are two smaller spiders directly above the female at the top edge of your image, just above the tangle of golden silk that gives this distinctive genus its common name.    

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Subject: Sumatra Spider
Location: Sumatra, indonesia
March 22, 2016 6:53 am
Hi,
Saw this spider in Sumatra, any chance anybody can identify it.
Thanks
Steve
Signature: Steve

Golden Silk Spider

Golden Silk Spider

Dear Steve,
This Golden Silk Spider is absolutely gorgeous.  She is a member of the diverse genus
Nephila that is characterized by having very strong, golden silk that can be woven into a resilient garment.  We will attempt to identify her species at a later time.
Update:  Your spider might be Nephila pilipes.  According to iGoTerra, the species is also called a Giant Wood Spider.

Golden Silk Spider with Steve for scale.

Golden Silk Spider with Steve for scale.

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Subject: is this a moth caterpillar
Location: Pike Lake, near Perth Ontario
February 21, 2016 3:11 pm
photographed July 15, 2015 close to the ground near Perth Ontario
approx. 2″ in length
what species?
Signature: dalep

Spider with Web

Spider with Web

Dear dalep,
We cannot locate a Caterpillar in the image you provided, however there is what appears to be a Spider resting at the lower left hand point of the structure that appears in your image.  We are speculating that the structure is either a series of egg sacs or part of the web where prey has been snared.  We are going to continue to research the identity of this spider.  We believe this might be a Trashline Orbweaver that Eric Eaton profiled on Bug Eric.  Here is an image from BugGuide of
Cyclosa turbinata.  According to BugGuide, another member of the genus Cyclosa conica, is found in your area.

Spider with Web

Spider with Web

What's That Bug? does not endorse extermination

Subject: Spider identification needed!
Location: Wanganui, New Zealand
February 9, 2016 7:15 pm
My mother found this spider in the garden today and I was curious what type it is, any help would be appreciated!
Signature: Tessa Mitchell-anyon

Two Spined Spider

Two Spined Spider

Dear Tessa,
This little beauty is a Two Spined Spider,
Poecilopachys australasia, and according to T.E.R.R.A.I.N.:  “The nocturnal two spined spiders is an immigrant from Australia and have been recorded in New Zealand since the early 1970s. The female Poecilopachys australasia is about 9 mm in length and when mature has two white horn-like ‘spines. Yellow and white bands and some red-brown markings are visible. Large body hairs on an adult female gradually disappear as she approaches maturity. The two spined spider is found in gardens on shrubs, often on citrus trees. By day, the spider will hide under leaves, emerging at night to construct a cart wheel-shaped web.
The egg sac of the two spined spider is spindle shaped.  The male is much smaller (2.5 mm – 3 mm in length) and looks very different. . Adult males lack the pair of large abdominal spurs and the bright colours that characterize the adult females. They look so different that they were first thought to be a different species.  Despite the small size of the two spined spider, it is capable of capturing moths and other insects several times its own size. Two spined spiders are regarded as harmless to humans.”

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Subject: Australian Inquiry
Location: Dorrigo, New South Wales, Australia
January 28, 2016 7:43 pm
Hello Bugman!
Im writing to you from Australia, the East Coast NSW. I have found this nest on my fathers property and its got us all puzzled. (Obviously, otherwise I wouldn’t be writing to you for help!)
Its a group of small nests/cocoons (?) suspended in an olive tree. you can see by the photo that there are seven sub-dwellings dangling down, each approximately 5-7cm (2-3″) and what you can’t quite see from the picture is that there is a egg/sphere-shaped object tucked up in the mass of leaves that are all swathed in that goldy-orange web. there has been no movement noticed to or from the nests, but over the 4 weeks we have noticed that a pinprick hole appeared overnight in only one of the seven nests top…(perhaps a visiting parasite, it didn’t look like an obvious entry/exit hole for the resident in question.) Other details are the 7 nests are hollow/hard paper sounding constructions. the web has carcasses of beetles and flies stranded in it – seemingly in a certain area above which indicates they have been eaten by a resident… thats about all the information I have… I do hope you can help out, curiosity is peaked as we wait and watch!
Signature: Kind Regards, Naomi Drage

Egg Sacs of the Magnificent Spider

Egg Sacs of the Magnificent Spider

Dear Naomi,
We are really enjoying researching your request.  Our initial impression that these resembled the Egg Sacs of Orbweaver Spiders proved to be correct when we discovered the Australian Museum page on the Magnificent Spider,
Ordgarius magnificus.  According to the Australian Museum site:  “Very little is known about the courtship and mating of Magnificent Spiders, but once egg development starts, the female’s abdomen swells up quite remarkably. She constructs a series of spindle-shaped egg sacs over several nights, and each one is filled with about 600 eggs. The egg sacs are attached to a branch, and may number up to seven. They are often parasitised by wasps and flies.  The mother spider usually dies off over winter. The baby spiders emerge in late winter to early spring and disperse by ballooning.”  The site also notes:  “During the day, the Magnificent Spider hides in a retreat made by binding leaves together with silk. Preferred trees include natives such as eucalypts in dry or wet sclerophyll forests, but these spiders are also found in suburban gardens. Often the spider’s characteristic spindle-shaped egg sacs are hanging near the retreat.”  The retreat is evident in the upper right hand corner of your excellent image.  Butterfly House also has some wonderful images and notes:  “These spiders are quite amazing. They catch their prey by creating a line of silk with a sticky blob on the end, then swinging it round and round. They emit the pheromones of some female moths to attract the male moths within range of their bolas, catching the moths rather like the Incas hunted game and the gauchos of Argentina catch their cattle.”  The Find a Spider Guide has a marvelous image of the Magnificent Spider and notes:  “The two yellow cones and red marbling on the dorsal surface of the abdomen of this spider are distinctive. Also very useful for identification purposes are the egg sacs. These are very large (about 5 cm long) and spindle-shaped, and hang in groups of about five.”  Your especially fecund female has produced seven egg sacs.  Thanks so much for providing our site with this wonderful posting for our archives.  Perhaps you will be able to get an image of the Spider herself.  She is undoubtedly the “egg/sphere-shaped object tucked up in the mass of leaves that are all swathed in that goldy-orange web” you mentioned.  The information provided on Arachne.Org may help you get that image which may require a flash on your camera.  Here is that information:  “These spiders are active at night, with a simple web in trees or tall shrubs, rarely less than 2 metres above the ground. Their presence is usually indicated by a cluster of large, brown egg sacs hanging among foliage. The egg sacs are conspicuous, up to 5 cm long – many are targeted by flies and wasps that parasitise spiders’ eggs. Up to 9 sacs may be made by a spider in a season, each with several hundred eggs. The male spiders mature within the egg sac, emerging with fully functional mating organs. At night the female spins a trapeze line from twigs above an open space in the branch or foliage. She hangs from this trapeze and spins into the space a short, single line of silk with a large droplet of very sticky silk, the bolas, at its end. The upper end of the line is held by the female’s second leg. The spider emits an airborne pheromone attractive to male moths of the family Noctuidae. Vibration sensitive hairs on the spider’s outstretched legs can sense the wing beats of an approaching moth. The spider begins to swing the bolas around in a circle beneath the moth until it is hit by the sticky bolas. It flutters in tethered flight while the spider hauls it in. The moth is then bitten, wrapped and either eaten or hung. Several moths may be caught in a night.”

Egg Sacs of a Magnificent Spider

Egg Sacs of a Magnificent Spider

Thats so great, thank you. Its an impressive (or magnificent!) looking creature! I look forward to getting out there at night and seeing if we can sight it! Will send you an update photo if we manage to catch it in action :)
There has been a change to the centre egg since I emailed, its sac surroundings have coloured in patches of rusty orange. So perhaps hatching will begin shortly!
Keep up the great work, thanks again!
Naomi Drage

Update:  February 10, 2016
Hello!
So our magnificent spider has been rather productive this week, she seems to have lost two of the spindle egg sacs to parasites (pinhole at top and sunken appearance), so she gone on and made an 8th one! Her markings are stronger now than they were before, and I can imagine being bird, poking your head up the nest hole and getting a terrible fright from her faux ‘serpent head’ abdomen! a great deterrent, even enough for me to keep good distance! hope the photos are a welcome addition for your gallery.
Regards, Naomi

Magnificent Spider in her lair

Magnificent Spider in her lair

Thanks for the update Naomi,
Your Magnificent Spider really does look like a serpent.

Update:  April 9, 2016
Hi!
I thought I’d update you on our “super-mama” magnificent spider that we have been watching – she has now exceeded her previous best and gone and made two new egg sacs!! she has ten in total now (with the australian museum website stating that 7 is normal, I’m cheering for our girl!) although she is still alive and well, the weather is cooling down so we expect her to die off soon. Her young are free-blowing away to neighbouring trees – I have included a picture of one of the offspring. You can see its perched near some orange seed-like balls… are they part of the web lure?
Because of the physical distance form my own home, I still haven’t witnessed the night-time feeding performance, simply being satisfied with day-time sightings!
Cheers, Naomi

Magnificent Spider Egg Sacs

Magnificent Spider Egg Sacs

Thanks for the update Naomi,
We especially enjoyed the image of the Magnificent Spiderling ballooning to a new location.  We are unsure of the identity of the orange features of the web.

Magnificent Spiderling

Magnificent Spiderling

What's That Bug? does not endorse extermination