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Spider Photos - Steatoda or Steadota

There seems to be some question as to which version - Steadota or Steatoda is correct. I have found it both ways so will make mention here of this anomaly so that my viewers are aware that they may see it either way. Spiders of the genus Steadota/Steatoda belong to the spider family Theridiidae, or the cobweb weavers. Also known as Combfooted Spiders, this family includes a number of well known arachnids, including the American house spider, Achaearanea tepidariorum, and the redback and widow spiders, Latrodectus spp.. Steatoda spiders are found throughout the world, in both temperate and tropical climates. They are small to moderately small (3-9 mm) spiders with oval abdomens; they may be reddish, brownish or black, with most species exhibiting a white band at the front of the dorsal abdomen which may resemble a collar. These spiders construct a strong, irregular web, somewhat resembling the webs of widow spiders; this web is very sticky, making it a highly effective snare for hobo spiders which they are very good at catching. Steadota/Steatoda grossa, the false black widow spider  is the most well known of the Steadota/Steatoda spiders. Found in cosmopolitan areas around the world, and on both coasts of the United States, grossa is a larger (9 mm) Steadota/Steatoda which, as its common name suggests, may resemble a black widow spider (with no hourglass). Specimens can be reddish to purplish brown in colour, with pale yellow markings on the dorsal abdomen, but many specimens are so dark that these pale markings cannot be distinguished. Steadota/Steatoda grossa is a common and well known "house spider" in many areas, constructing its webs in and around buildings, rock walls, and other structures. It has long been known that the "false black widow" will ensnare, kill and prey upon actual black widow spiders in its natural habitat. The bite of the common comb footed spider causes mild local pain unlike the redback/widow spiders whose bites should be treated immediately with antivenom, especially in a young child.
Info  - www.hobospider.org.
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Zoropsis spinimana    

(Steatoda nobilis)(
Steatoda Paykulliana) (Steatoda grossa) (Steatoda triangulosa)

The false widow spiders belong to the genus, or group, called Steatoda . There are six species of Steatoda found in the UK including one introduced species, Steatoda nobilis.This group of spiders get their name because they look similar to the true black widow group of spiders, genus Latrodectus. However Steatoda are significantly less harmful to humans. Steatoda are shaped similarly to widow spiders, with round, bulbous abdomens. However, not all Steatoda species resemble widows – many have distinct coloring, and are significantly smaller than Latrodectus specimens. Some species of Steatoda actually will prey on widows, as well as other spiders which are considered hazardous to humans. In common with other members of the Theridiidae family, the Steatoda spiders construct a cobweb, i.e., an irregular tangle of sticky silken fibres. As with other web-weavers, these spiders have very poor eyesight and depend mostly on vibrations reaching them through their webs to orient themselves to prey or warn them of larger animals that could injure or kill them. They are not aggressive, and most injuries to humans are due to defensive bites delivered when a spider gets unintentionally squeezed or pinched somehow. It is possible that some bites may result when a spider mistakes a finger thrust into its web for its normal prey, but ordinarily intrusion by any large creature will cause these spiders to flee.  Some members of this genus do have bites which are medically significant in humans (such as S. grossa and S. nobilis), however bites by Steatoda species generally do not have any long-lasting effects.

S. nobilis is native to the Canary Islands but arrived in England in around 1870 through bananas sent to Torquay. In England it has a reputation as one of the few local spider species which is capable of inflicting a painful bite to humans - although this is a comparatively rare occurrence.

False Widow Spider - Steatoda Grossa

Steatoda Grossa - UK Steatoda Grossa - USA Steatoda Grossa - Other
Steatoda triangulosa Steatoda nobilis  Steatoda Paykulliana
Steatoda bipunctata Other Steatoda



Reply: This looks like a  false widow - glen

1 July, 2015:
Hello there, I found this in our garage. Sorry about photo as it was taken with the phone.


Reply: This is a false widow  - glen

6 May, 2014:
. I found this one on a web in my house, eating another spider… Any help would be appreciated! Thanks Tyler .



Reply: This is  steatoda grossa  and it may have caused your blister - glen

12 October, 2013:
I found this Spider trapped in my bath tub but I haven't been able to identify it. I think it might be what bit me and caused I blister. Do you recognize it? -Dennis



Reply: This is  steatoda grossa  - glen

12 October, 2013:
How about this guy that my cat was playing with today? Looks like male widow to me? Hopefully you can zoom and get good look at the shriveled abdomen and pale hourglass on the under side.



Reply: This is  steatoda grossa  - glen

12 October, 2013:
Thank you. Looks like a match. I am now struggling to ID another one I found running in my driveway tonight.



Reply: This is a male steatoda grossa  - glen

12 October, 2013:
We've got plenty of wolf spiders, and brown and black widows. Never seen this one though. Any ideas. Poisonous? Was In our finished basement hanging out in a corner. Rob

Reply: No, this is a false widow - glen

8 September, 2012:
Biggest Widow ive ever seen!

Reply: This is a false widow spider   - glen

19 August, 2012:
Hi Glen I got it on some white paper and took a shot from above without the glass. Hope this one is better quality! Thanks again Glen, Jay

Reply: This is like a false widow spider   - glen

25 June, 2012:
thank you for responding! do you think you can also identify this one? we found eggs that look like little cotton balls all over underneath the couch.

Reply: This is looks like a false widow spider   - glen

5 June, 2012:
I found this spider in my bathroom, could you possibly tell me what it is and if its poisoness? Thank You, Tara

Reply: This is looks like a false widow spider   - glen

7 May, 2012:
Glen, I woke up this morning and found this little guy in my bath tub. I've seen others like this spider in my house before. However, given it's overall appearance I try not to get too close just in case they happen to have a nasty bite. I know this spider is not a recluse because it doesn't have that tell-tale violin shape on it's back. I was wondering if you could help me out on this. Thanks. Sincerely, Adam

Reply: This is looks like a false widow spider   - glen

7 May, 2012:

Reply: This is looks like a false widow spider   - glen

7 May, 2012:
Hi, Can you help with the type of spiders for these two pictures? thanks! Megan


12 April, 2012:
Hi there, I trust you are well. I hope you can assist me. I found your website and thought you would be the relevant person to email considering how much info you have on your site about spiders. I am curious to know what kind of spider I found. Please see attached photo. I cleaned the photo up to try and get flash glare etc off the spider. It is dark brown and has 4 white dots on its back. It is shiny. It is about the size of an American Quarter, maybe a little bit smaller. I found it in my wine cellar underneath one of my wooden shelves. It is dark in there all the time except for when the light is on. It is dry in the cellar (I thought it may be useful explaining the conditions in which it was living). If you could please help me out I would be very grateful. Kind regards, Blake

Reply: I think this is a Steatoda similar to this photo - Laura

11 March, 2012:
What kind of spider is this?

Reply: This is looks like a false widow spider   - glen

21 January, 2012:
Attached is an image of a spider, can you tell me what kind it is and if it's poisonous? Thanks Todd

Reply: This is some sort of steatoda but can't see the top of the abdomen to be sure which one   - glen

7 August, 2011:
I found two spiders in the last week outside of my door. I live in Fredericton, New Brunswick, Canada and I sure am NOT used to seeing spiders bigger than my thumb. (it's body) The first spider was dark-dark brown. I could have swore it was a tarantula in my shock. It also had 3-4 lighter brown bands around it's legs. And it's way bigger than I have seen outside of an terrarium. The second spider was less impressive. It was still a bit larger than we are used to in this part of the world so I took a picture. When I saw the picture full size it also had light brown bands around parts of it's legs. It's shape didn't look like the first one I found. ( the tarantula guy ) but it looks more the SHAPE of a black widow. Very large and round abdomen. I only mention it because it kinda made me think it's a female version of the hairy one I found, or maybe it had a haircut. The second one also had spikey- things on it's legs. Wondering if anyone could help out. Thanks, Logan.

Reply: This is looks like a false widow spider too  - glen

25 December, 2010:
Attached is an image of a spider, can you tell me what kind it is and if it's poisonous? Thanks Todd

Reply: This is a false widow spider which looks like the other widows but has no red markings. - glen

7 December, 2010:
need help identifying this spider. looks like a black or brown widow

Reply: It is probably one of the steatoda varieties, often called false widow spiders. Their venom is similar to the widows but not nearly as strong, I'd keep an eye on the dog and if it shows any signs of paralysis or breathing problems, take it straight to the vet - glen

5 August, 2010:
Dear Awesome Spider Website People! My friend found this spider in her home and is wondering what it is. Her dog seemed to have been bitten tonight. They are not reacting horribly, just that they are biting at themselves. She searched around her home and found this spider indoors. Could you please let me know if you can identify the spider below and its threat level? Many of us searched the internet and could not find it anywhere. Thanks so much! All my best, Cynthia

Reply: This is looks like a false widow spider but I'm not positive - glen

7 December, 2010:
Hi! I have an interesting looking spider in my hallway that I haven't been able to identify. I'm hoping you can help me identify it. I've attached a picture of it. Thanks!

Reply: This is a false widow spider which looks like the other widows but has no red markings. - glen

7 December, 2010:
need help identifying this spider. looks like a black or brown widow

Reply: It is probably one of the steatoda varieties, often called false widow spiders. - glen

5 August, 2010:
Could you id these spiders? Thanks, John

4 February, 2008:
Two photos of probably a common House Spider that was on a gallon jar.


2 March, 2008:
Hi Glen, Here are some assorted Steadota pictures I've recently taken. There seems to be a good variety of them around here. Feel free to use my pictures if you want. Damy

Reply: This is a false widow spider - glen

17 November, 2006:

Found this in my home this morning.



Reply: This looks like a male false widow - glen

1 July, 2015:
Please can you tell me what spider this is im from South Africa JHB.


Reply: It looks like the Mozambique version of steatoda grossa but I'm not positive  - glen

12 October, 2013:
Hi, I was hoping you could help me in identifying a spider that we encountered in Mozambique. I have searched through the internet and couldn't find anything like it. She was in her nest in a tree when one of the mozambique residents tried to kill her by throwing her and her male into water. I put them in a bottle after they "drowned" to take a photo, but after about half an hour they both woke up - to my surprise. I set them free eventually. I would just like to know what type of spider this is, how poisonous they are etc. I would appreciate if you could help me. P.S - the female has a red heart shape on her chest, and the male has a yellow shape under his chest.





Reply: This looks like a false widow - glen

29 June, 2015:
Hi I found this little guy today in the eastern suburbs of Sydney. Is he dangerous? Thanks Jeremy



Reply: In Australia, these are called brown house spiders but they are steatoda grossa - glen

14 January, 2013:
Hi, Just wondering if you could please help me identify this spider that now has a family of hundreds. I live in Sydney, Australia, and they have set up a healthy population in my worm farm. I've tried to take photos of all the different sizes, from baby to adult including the egg sac. Really hoping they are not in the Redback family!! Cheers, Sophie



Reply: This is a false widow  - glen

28 January, 2015:
Good morning! We found this spider in a ceiling corner of our bathroom one morning. I'd say, with legs, it was between the size of a quarter and silver dollar. I think I found another one this morning but it was much, much smaller. We live in Chile in the middle to south (Osorno); so, if your arm is Chile, somewhere around the middle of your bicep! The weather here is moderate- rainy in the winter and in the 70's or 80's (F) in the summer, low humidity. We found it in the springtime here. I'd love your help identifying it. I think it's a male black widow but was hoping to find out otherwise! Thank you! Michelle



Reply: It looks  steatoda grossa, also called a false widow spider  - glen

6 March, 2014:
Hello! I found this spider on the island of Crete in Greece, and I was wondering if you could figure out what kind of spider it can be, since it's a spider I've never seen on this island before. Feel free to use the photo on your website if you wish! Best wishes, Angelo




Reply: This is probably the Indian version of a steatoda grossa  - glen

14 April, 2013:
I am from andhra pradesh,india. I saw a spider and am curious to know abt it. Its a small mug. The black spider.



28 May, 2010:
Dear Spider enthusiasts, I recently traveled to Iran and upon returning home in Toronto I found that a strange spider had found its way into my luggage. At first glance I thought it was a black widow spider as it was black with a continuous band of reddish orange circling its abdomen. I've been feeding it regularly with insects in hopes to keep it alive so that I may be able identify the little fellow. I've attached a few photos to help. Best, Arman



Reply: Looks like one of the steatoda family.

28 June, 2009:
Hey there, Found her? crawling out of a cardboard box of wood we had brought into the house Wood was small branches cut from a tree a year ago and had been sitting outside in the carport We're in Auckland, New Zealand Most I can find is it looks like it could be a brown house, false katipo or false black widow, all which appear about the same thing but can be anything from black to all weird markings but look the same. Any ideas? Not sure if it is dangerous etc and if I should be contacting any sort of government agency if it shouldn't be here (though I'm guessing its fine) Philip