Currently viewing the category: "Cobweb Spiders"
What's That Bug? does not endorse extermination

Subject: Whats that bug! Spider!
Location: Las Vegas, Nevada
September 13, 2014 6:22 pm
I found the super cool spider that I have never seen before in Southern Nevada! Could you help me identify it?
Signature: Thanks bunches! Victoria Rebholz

Immature Western Black Widow

Immature Western Black Widow

Hi Victoria,
This is an immature Western Black Widow,
Latrodectus hesperus, and you can compare your image to this image posted to BugGuide.  According to BugGuide:  “Caution: Anyone bitten by a western black widow spider should receive prompt and proper medical treatment. While the black widow is considered the most venomous spider in North America, death from a black widow spider bite is highly unlikely.  For the most part, the black widow’s bite may be felt only as a pin prick, during which the spider’s fangs inject a minute amount of highly toxic venom under the skin. The severity of the victim’s reaction depends on his or her age and health, and on the area of the body that is bitten. Local swelling and redness at the site may be followed in one to three hours by intense spasmodic pain, which can travel throughout the affected limbs and body, settling in the abdomen and back (intense abdominal cramping, described as similar to appendicitis), and can last 48 hours or longer. Elderly patients or young children run a higher risk of severe reactions, but it is rare for bites to result in death; only sixty-three having been reported in the United States between 1950 and 1959 (Miller, 1992). Other symptoms can include nausea and profuse perspiration. If left untreated, tremors, convulsions and unconsciousness may result. When death does occur, it is due to suffocation.

What's That Bug? does not endorse extermination

Subject: what kind of bug is this?
Location: Newark, DE in the United States
August 5, 2014 11:46 am
My kids have been telling me about this crazy looking bug that has been eating bees in our back yard. But I have never seen one personally until today my son pointed one out with a bee captured in its mouth while both are captured in a spider Web! If you could identify this so I can explain to them I would greatly appreciate it alot. Plus for my knowledge also. Thank you greatly and Good bless.
Signature: Pyle Boys

Spider eats Hanging Thief eats Yellowjacket

Spider eats Hanging Thief eats Yellowjacket

Dear Pyle Boys,
We need to begin by telling you we love your documentation of a multi-link Food Chain.  We only wish your image was sharp enough and detailed enough for us to be able to identify the Spider.  The flying predator is a type of Robber Fly known as a Hanging Thief in the genus
Diogmites.  The Hanging Thief gets its common name because it often hangs from one leg while eating the large winged prey, often bees or wasps, that it captures on the wing.  The prey in question is not a bee, but a Yellowjacket.

Multi-Link Food Chair:  Spider eats Fly eats Wasp

Multi-Link Food Chair: Spider eats Fly eats Wasp

I am gonna attach a few more pics of the spider close up and hopefully this can help. And thank you for clearing up the curiosity for me and my sons! And glad you like the food chain effect my son thought it was cool how life works. Thanks again!

Possibly Common House Spider

Possibly Common House Spider

Thanks for sending the additional images, but unfortunately, the images are not critically sharp and it also appears that the color is decidedly cyan/blue, which makes the subtle coloration on the spider difficult to distinguish.  The Hanging Thief and Yellowjacket were quite obvious, but not so with the spider, which may be a Common House Spider, Parasteatoda tepidariorum.  You can see the resemblance to this individual on Bugguide.

 

What's That Bug? does not endorse extermination

Subject: Spider (Identification)
Location: Montenegro
July 4, 2014 4:21 am
Found this guy on a pile of big stone tiles in the sun, The picture isn’t perfect but I think it had 6 of those orange/red spots on his back. Small in size few mm in size (3-7mm maybe?).
Signature: eatyourdog

Immature female Widow Spider

Immature female Widow Spider

Dear eatyourdog,
This is an immature female Widow Spider in the genus
Latrodectus.  According to this araneae website, the species Latrodectus tredecimguttatus is found in Montenegro and the site states it is found:  “In dry habitats, dunes, sandy beaches, shingle beaches and on low vegetation.  This species can bite humans, as also all other Latrodectus species in the world. Often, a bite causes significant effects, with severe and long-lasting pain in two-thirds of cases, preventing patients from sleeping in one-third of cases. Pain increases in more than half of the cases within the first hour and mostly radiates into the limbs or abdominal pain develops. Typical symptoms include sweating in about 70% of cases and further systemic effects in 20–30% of cases (nausea and vomiting in less than 20%, raised temperature and neuromuscular effects in about 10%, hypertension in less than 10% of cases). Pain usually lasts 1–2 days and the other symptoms 1–4 days. In Europe, bites have become very rare in the last decades. If needed, a symptomatic medical treatment is recommended.”

What's That Bug? does not endorse extermination

Subject: False Widow?
Location: San Francisco Bay Area, U.S.
February 22, 2014 10:23 pm
Hello there-
I found this lovely lady (?) up in a corner near the ceiling of our San Francisco garage/basement (we live on a hill, so that wall is actually subterranean). There’s a similar but smaller spider nearby that I can’t get a good picture of because it’s tucked to far into a corner. I can’t guarantee how true the color are as the pic was taken with a flash. I was initially intrigued by the spider because it looked quite black in the dark and we do get the occasional widow in this region, but now that I’ve seen it up close, I’m wondering if it might be a Steatoda grossa?
Signature: SnorkMaiden

False Widow

False Widow

Dear Snorkmaiden,
We agree that your spider looks like the False Widow pictured on BugGuide
Your individual appears to be an immature female, and when she matures, she will lose the markings on the abdomen and BugGuide has nice images of the female life cycle.

Good to know. Many thanks for the response!

What's That Bug? does not endorse extermination

Subject: Unknown Spider
Location: Torrance, California
January 28, 2014 4:39 pm
Hello Bugman,
I need some help identifying this recently deceased spider. My 6-year-old son found it in a corner of my house after we came back from a long vacation. It was shiny brown, with white stripes on its back, and about a penny size. It had made a small, irregular web, and was living just a few feet away from a Brown Widow (also deceased, sorry). I have never seen this kind of spider before, and have not been able to find a match on the Internet.
Thanks.
Signature: Daniel

Immature Brown Widow

Immature Brown Widow

Hi Daniel,
This looks to us like an immature Brown Widow.  See BugGuide for a comparison image.

What's That Bug? does not endorse extermination

Subject: Spider question again
Location: Gunung Manglayang, West Java, Indonesia
October 18, 2013 11:23 pm
Hello Daniel,
I got a question about a spider again, and I only got one decent photo of it.
In term of size… it’s a relatively small spider about 1 to 1,5 cm toe to toe, and I found it hide behind a banana leave.
Hope that whatsthatbug could help identifying this guy :)
Signature: Mohamad Idham Iskandar

Unknown Spider from Indonesia

Spiny Theridiid Spider from Indonesia

Hi Mohamad,
We are sorry about the delay.  We have been very busy and we somehow overlooked your request.  We do not recognize your spider, but we will post the image and hopefully one of our readers will write in with an identification.

Karl provides a classification
Hi Daniel and Mohamad:
I believe this is a comb-footed spider (Theridiidae), also known as tangle-web or cobweb spiders. As far as I can tell, the black blade-like hairs at the end of the abdomen are characteristic of two genera, Chrysso and Meotipa. Christa l. Deeleman-Reinhold refers to them as spiny theridiids. Unfortunately, that is as far as I could get, as I could find no online photos or descriptions that pointed me to any particular genus or species. Nicky Bay Photography has posted numerous excellent images from Singapore that come close, most identified as Chrysso sp. or just Theridiidae. You can click here or here to check out two good examples. Project Noah also provides an image of a similar spider from India that it identifies as Chrysso sp. Regards.  Karl

Thanks so much for doing this intensive research Karl.

Wow thanks a lot Daniel and Karl for the clue…, first time seeing this spider and for me that is really interesting.

What's That Bug? does not endorse extermination