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Spider Photos - Woodlouse Hunters

Dysdera crocata (the woodlouse hunter), together with its preferred foods - woodlice, has been transported over much of the planet. Dysdera also feeds on beetles. These spiders have very large chelicerae, which they use to pierce the armoured bodies of woodlice and beetles. There are also some reports that they have a mildly toxic venom that can cause local reactions in humans; with their huge fangs there is little doubt that they could bite if threatened, but the venom has not been well studied. It is probably wise not to handle these spiders. The spiders have their six eyes arranged in a semicircle. The first two pairs of legs face forward. Dysdera crocata has a characteristic colouring - the carapace is dull red-brown and the abdomen gray or tan. The "two-tone" look, with the abdomen much lighter than the cephalothorax, is quite striking. These rather large, burly-looking, slow-moving spiders are often seen in the autumn in basements and other cool areas of homes; presumably they are looking for a winter shelter. (Info: Wikipedia)

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Zoropsis spinimana    

WOODLOUSE HUNTERS

23 August, 2013:
Hello, please help me :-p. I have never seen so many damn spiders before!! I think I've identified a couple, but whats concerning is I have a 5 yr. Old son obsessed with bugs and spiders and will go in the backyard, come back 5 min later and have 10different spiders! I have a few pics. Can u help? What are they and are they poisonous? We live in northern Illinois, about 35 min. From Wisconsin. Ok, this one I found yesterday in the arch of my porch, not very big, though his budy in the next arch s twice as big, to scared to mess with that one though. It had a circular web and as in the middle, orb weaver? (Or whatever the proper name) even tho I thought that, I couldn't find one online with similar color. Little hairs on the leg. Found anothet one of these not as big with a rolly poly in his grip! Have a cpl more pics. Not on my phone though. Thanks for any help. :-) Nikki

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10 August, 2013:
Can you identify this spider please? Seems to have red legs, red body and grey abdomen. He is very, very fast and he was had to catch. I caught him at the edge of my daughters room at night when I flicked on the hall light. If I move the jar near the light for the picture, it seems to really agitate him. I probably took 30 pictures to get the 6 to send to you.... Thanks in advance, Brian

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10 August, 2013:
I live in Virginia and this beauty paid me a visit. I had never seen it before.

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4 August,  2013:
My apologies, i was also wondering if the spider is poisonous?

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4 August, 2013:
Can you tell me what kind of spider this is? It was in my driveway (in Northern Ohio) headed for the garage. The body was about an inch or so long.

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4 August, 2013:
Hello, Can you please tell me what kind of spider this is? I found it in my house in New Jersey. Thanks!

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16 June, 2013:
Wondering if you can tell me what kind of spider this is. I posted a pic on fb and have gotten many answers. I live in Lockport, NY and found this in my garage last night. Thank you

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29 May, 2013:
Hi there I live in B.C. on Vancouver Island and last night found this spider crawling across my bedroom floor, I have a 5 month old baby and am worried if this is a young recluse or sac spider, from the research I've done it also resembles a sow killer spider. Our bedroom is in the basement so I've seen spiders before but none like this, within ten minutes I found another just the same! I would really appreciate any insight if we are infested with venomous spiders the sooner I find out the better...

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29 May, 2013:
Thanks to your website - I discovered about this little fella. Here's a photo for your collection.

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29 May, 2013:
My friend found this in her laundry basket can you tell me what kind of spider it is

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29 May, 2013:
We've found a few of these so far in the yard this year. The first one did not run away and just reared up at us.... this one tried to run away. We are in Oregon. The red coloring makes me nervous, just want to make sure it's not poisonous! Thanks!

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14 April, 2013:
I found this guy on the hood of my car yesterday. Can you please identify it for me? Thank you very much, Viana

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5 March, 2013:
Hi Glen - If possible, I would appreciate your thoughts regarding the attached picture. This spider was found in our basement - it's approximately the size of a quarter and we reside in the nortwest suburbs of Chicago. Thank you, Jeff

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5 March, 2013:
This was in my rec room and now I can't find it. Should I be worried ? :

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Reply: This one looks like a male woodlouse hunter  - glen

4 November, 2012:
Hi Glen, We found these two lovely ones at work today. One I think is a male broad faced sac spider, he is kinda creepy but its my first time seeing one of these guys so I was pretty excited to add him to my photo collection. The other black spider I am not 100% sure of but she is most definitely female and likely pregnant. She looks to me like a barn funnel weaver, hobo, or common house spider. I've never seen one of these ones either. She was very docile and calm and she was very co-operative about being caught and released and even sat still for her close up photos lol the male sac spider is a runner! Am I right for the identifications? I've already released these two so I cannot get more photos. They were HUGE! The female was almost an inch and the male spider was about 3/4" Casey

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4 November, 2012:
Glen, Took this picture today 10/29/12. This spider feeds exclusively on woodlice. Jerry

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22 July, 2012:
Hello glen, I was wondering if you could identify this spider.

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27 June, 2012:
Hello! I stumbled across your site while trying to look up the type of spider I found in my backyard this evening; it's very helpful! I wanted to send you a picture of what I found, and maybe you can help me identify? From what I see, it seems like a woodlouse hunter? It was VERY aggressive. The second I came walking into my back gate, it stopped, raised its front legs and those very distinct fangs were waiting for me. We had about a ten minute stand-off until I decided this thing couldn't possibly jump...so I walked over it and went along my way. lol Feel free to post the pic, its attached. :) -Heather

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Reply: This is a male woodlouse hunter - glen

19 June, 2012:
Any ideas what this might be Arizona  

Click for a larger view.

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Reply: This is a woodlouse hunter - glen

15 April, 2012:
Hi, just want to say I'm a big fan of your website. I have a few spider pictures you may be interested in. I live in Cyprus, Paphos...all pics were taken here. Also there are many species here that have not been publicized. Thanks for your time, would appreciate it if my pictures were not distributed...showing them on your site would be greatly appreciated though :) Matt

Click for a larger view.

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10 February, 2012:
Hello, I found this spider tonight crawling out from one of my closets. I live in San Diego County, CA. I believe it is a Woodlouse Spider/Hunter, but just wanted to verify. Thanks! -Justin

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14 January, 2012:
I was wondering if you can identify this spider for me I find them in my house all the time. At they seem to be getting bigger each time I find them please help. My kids are young don't want them in danger. Thank you

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18 May, 2011:
Hello and thank you for your help! I keep finding this type of spider in my garage. I live 35 miles southwest of Chicago, IL in the USA. The spider is about 1-1.25 inches long overall. There is no web that I can find with the spider. It appears to be a ground hunter. I can't tell if this thing is some kind of trap-door, parsons or recluse. Any ideas? I'm kind of freaked out and my wife is ready to post a for sale sign on the house! Thanks, Jim
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18 May, 2011:
This spider was found under the covers last night!! We live in Baltimore, MD. I'd appreciate it if you could please let me know what this is, and is it dangerous? Thank you in advance!! Lauri
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Reply: This is a woodlouse hunter not a broad faced sac spider - glen

6 April, 2011:
Hi, I have some photos of an arachnid I found in my house, I finally determined it to be a broad-faced sac spider. You can post these on your site if you like. Found in Wichita, KS. nathan

Click for a larger view

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6 April, 2011:
Hi, I found a spider that I've never seen before. It was crawling out of the wet grass after a rain storm. Sort of pretty with it's bright red color. Do you know what kind it might be?

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10 July, 2010:
Hi Glen, I was wondering if you can help my 7 year old son and I identify this spider. We live near Chicago and found this in our backyard. We thought that it was possibly a brown recluse. BTW we LOVE your web site! Thanks in advance! Colleen
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7 July, 2010:
found this at work in NE Ohio ,when it was alive it was bright red.may have come in in a crate that traveled from Germany.
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24 April, 2010:
Hey Glen, Can you help me to ID this spider? actually 2 of them. I live in Southern Cali and the second one that scared me the most as that is the most unusual have found and it was a size of a bee about one feet away from my bed on the windows ledge. I got scared as I do not know if it is a dangerous spider or not and thank God I did not roll over it on my bed just to figure it out. I did not kill either of them just threw them out far away from my place into the bushes so I am hoping no more encounters with them and that no one else gets hurt by them if they are dangerous by any chance. Although I do not have a clear shot of the second ones eyes but it seemed as it is not in a half circle that is like a smile but instead it curves upside-down. I was looking on the Internet but could not find a photo of one like this with a matching name. I definitely need an expert like you! Thanks a bunch, Se Spidy Anonymous #1:

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3 October, 2009:
Hi, Just wondering if you had any ideas as to what this is? Almost looks like a crab or a lobster crossed with a spider. Tks, Mark

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16 July, 2009:
is this a broad faced sac spider? i found it in some dirt in New Mexico.... Was also wondering if it is poisonous? I couldnt find anything on its bite

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10 May, 2009:
Please help me identify my mystery spider my kids and I found this morning in the garden. I've been looking all over the internet and can't find the answer. It's about 3/4 to one inch long. It has red upper body and legs with a tan, elongated abdomen. It scrunches it's legs into it's body when it feels threatened. I live in Nevada. I'll attach a picture of it. It sorta freaks me out so I'll do my best..... Ok, so I just took 2 really lame pictures. The first one he is in his "I'm gonna die" stance, and the second he is running for his life, hence why it is blurry and his legs are not all seen. I swear he has 8 of them though, and man, can he run fast! Please help. I really would love to see what kind of spider I found. A fellow nautre lover Kelly

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17 February  2009:
Here's a large woodlouse hunter kept by my friend Taylor in Iowa!!

 

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22 November, 2008
Goodday, I'm trying to identify this spider. I found it at home, Western Cape, South Africa and find them more often than not from small ones to bigger ones. Could you help me to find out what kind of spider it is and whether it's dangerous? Thanx LIZETTE

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Reply: I think this is  a woodlouse hunter.
15 August,  2008:
Awesome site and you've never let me down. Found a few of these in the traps this weekend. I believe spider1 is a hobo but I have seen SO many funnel weavers and hobo pictures.. it looks like it could be either. I am in Utah, USA. We have small children and I really need to rid the area of hobos if we have them.. Our playroom is in the basement. I sprayed for spiders inside and out yesterday but that spider1 was in the trap this morning. The second spider I have no idea what it is. Both were in traps.

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13 May, 2008:
Here is one for you, feel free to post it. I believe it is a woodlouse spider? Found it in my basement in the Chicago area.
Alan K
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21 January, 2008:
Hello there. I was just wandering if you could identify this spider for me as I have never seen one like it before. I found it on my kitchen floor in Scotland last night. I measured it at around 2cm in length. I also noticed it has quite large fangs, it looks capable of biting through human skin but I'm not sure if it's venom is considered dangerous.
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6 June, 2007:
I live in Portland, Oregon, USA. I've been seeing quite a few of these beasts around (they appear to like living in the ground or under low-lying foliage - we unearthed dozens when we pulled out some Ivy ground-cover, but I'm not sure if they were living *in* the ground or just on it under the Ivy). Size is smaller than the picture suggests, perhaps 1/2" to 3/4" including legs. They appear rather aggressive or at least highly defensive, turning and raising their legs at anyone approaching,
fighting each other, etc. Mostly they are interesting due the rather disproportionate size of their fangs (which are plainly visible to the naked eye from a couple feet away and make them appear pretty scary). Regards,
Cliff

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17 May, 2007:
I like your site. I saw a spider in my basement (I reside in Chicago) and found out it was a semi harmless spider. Its the red one. After that, I let it go and shortly after the thing gets caught in another spider's web. Not sure what the other one is, it kinda has a marble design on its rear. Could you please identify? Here are some pics. Feel free to post them on your site. Thank you.

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30 May, 2007:
This is a spider that a co-worker and myself found outside the museum here in Garden City, Kansas. (Southwest) Im not sure if you can tell on the attactched pictures that the fangs are about if streched out are almost a quarter of an inch. (They would hurt if bitten lol) they are very sharp looking. If you can please email me back with the name of this spider and also the latin name so we can research it, i would greatly appreciate it. Thank You for your time Ashley Guinn

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17 May, 2007:
I like your site. I saw a spider in my basement (I reside in Chicago) and found out it was a semi harmless spider. Its the red one. After that, I let it go and shortly after the thing gets caught in another spider's web. Not sure what the other one is, it kinda has a marble design on its rear. Could you please identify? Here are some pics. Feel free to post them on your site. Thank you.


Click for a larger view
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Reply: It looks like a wooodlouse hunter.

17 May, 2007:
Glen, My daughter and niece found a spider for which I have never seen before. Does anyone know what kind of spider this may be. Thank You

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Reply: It looks like a wooodlouse hunter.

21 April, 2007:
This is a spider that a co-worker and myself found outside the museum here in Garden City, Kansas. (Southwest) Im not sure if you can tell on the attactched pictures that the fangs are about if streched out are almost a quarter of an inch. (They would hurt if bitten lol) they are very sharp looking. If you can please email me back with the name of this spider and also the latin name so we can research it, i would greatly appreciate it. Thank You for your time, Ashley

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8 November, 2006:
Hi Glen,attached are two photos of a spider that a good friend of mine came across while doing some plumbing work. It was in Descanso,a mountainous area around San Diego. He found it in a water valve check box, and it was apparently very aggressive. It's quite fast, I can vouch for that! Neither of us recalls seeing these before. Any feedback would be much appreciated, and of course post them if you like. Thanks, Roy
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Reply: I think it looks like a wooodlouse hunter too.

23 August, 2006:

Hello, I am hoping you might be able to ID this spider for me. I have killed a couple in the house. Now, however, they have been showing up dead at the bottom of the kids' swimming pool. I've been search photos and can't figure out what it is. Any idea? Thanks so much for any help you can offer.

Pam


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Reply: I think it looks like a wooodlouse hunter too.

31 July, 2006:
Hello! I found this spider scurrying across my floor last night. He was very fast and seemed to be very aggressive. I think he was about the size of a quarter, maybe a bit bigger. My best guess is the Woodlouse Spider Dysdera crocata). I'm in southeastern Michigan. Any help would be greatly appreciated. ~Nichole

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Reply: I think it looks like a wooodlouse hunter too.

24 July, 2006:
Greetings! Came across your cool spider website. My girlfriend came across this cool spider at the Painted Hills Unit of the John Day Fossil Beds National Monument in Oregon. We havenít been able to id it unequivocally. I think it might be a species of Dysdera but I could not find this genus on a list of Oregon spiders. Any ideas? Thanks. Cheers, Alex

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Reply: I think it looks like a wooodlouse hunter too.
22 July, 2006:
Hiya, first, I really like your site--thanks for having it out there for folks to use. I've tried figure this one out on my own--I've not been able to find anything. It's red and the body is 10mm long and about 3mm wide--25mm legs extended. One photo is a side view, and the other is the underside as it climbs the inside of a glass. I'm in southern NJ, and this is the first time I've ever seen this type of spider here--we have plenty. I will let it out from under the glass in the morning when I can see what I'm doing. I'm a buddhist, so I try very hard not to kill spiders...and anything else! Anyway, just curious what it is. I already know I have wolf spiders in a back corner of my basement--and jumping spiders on the patio, along with some really cool weavers. I'd appreciate any help you can give. Nina

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Reply: I think it looks like a wooodlouse hunter too.

18 June, 2006:
Sir, Can you identify the spider attached. It was observed in Cedar City,  Utah, USA on 17 June 2006 in a garage. Thanks
leo
 

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Reply: Yes it is Dysdera crocata, the woodlouse hunter - glen
3 February, 2006:
Hi Glen,  Some co-workers found this spider walking along outside out office a few weeks back. Surprising considering it's winter here in northern Illinois.  I think it's a Dysdera crocata spider. Randy Bachmann, Turner Junction, IL

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Reply: I think it looks like a wooodlouse hunter too. Could be a male.

26 November, 2005:
I found this one in my dogs water dish, and appears to be belly up, I was  told it could be a woodlouse spider, but I would think the bottom would be a lot  bigger, I live in Northeast Ohio, any suggestions?
 

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Reply: It is Dysdera crocata, a woodlouse hunter spider.

9 October, 2005:
Hello, I live in england on an island called the Isle of Wight and found this spider in the house... it was crawling very sluggishly and couldnt really move, even with a bit of a poke. So we put it outside and it died on us as soon as it touched the ground! Can you tell me what sort of spider it is please? We had never seen this type before! Thanks! Josef

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Reply: The red spider is a Dysdera crocata, the "woodlouse hunter". The Dysdera can cause a blistering rash if it bites, but isn't considered dangerous.

7 August, 2005:
Hello, 2 days ago I found a red spider on my brothers living room carpet, To my surprise it was a bright red, and I have never seen a red spider in my life, They must be extremely rare in England, Uk.

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Reply: I'd say that's a Dysdera crocata "woodlouse hunter," which isn't dangerous except that its bite may cause a blistery rash.  Nathan Hepworth

6 August, 2005:
Could you please tell me what this spider is and if it is harmful? Itís about an inch in size and was found in my basement where my teen son sleeps. Iíve never seen one in my 46 years and canít find anything identical on the web. I'm concerned.
Andrina xx

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Reply: Looks like a woodlouse hunter.
10 June, 2005:
Hello Glen, I love your site. I live in New York on Long Island and found this spider hiding in my clothes closet. This is the first time I've seen anything like it. I've spent hours checking the pictures on your website to see if I can find anything about her (?) without success. I thought maybe you or someone out there might know what kind she is and if she's dangerous to have around? Thank you, Terry

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Reply: This one looks a bit like Dysdera crocata- the woodlouse hunter, pictured below.

20 February, 2005:
This spider was in my house in Elgin Il. Can you help me to identify it's name and type? It was very aggressive if you touched it or put anything in front of it. It put it's fangs in a tissue and would not let go. Is it possible that it was just defending itself, because it lost two rear legs when my girlfriend picked it up? The body was very hard and the back was soft. I have touched many spiders and none have ever been so defensive or combative for that matter.  thanks, mike

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Reply: That is a Dysdera crocata- the woodlouse hunter. It's  not dangerous, but the bite can hurt and may cause a rash with blister-like  bumps. This species is in both the US and Europe. See : http://www.ento.psu.edu/extension/factsheets/Spider/spiders.htm
- Nathan Hepworth
18 February, 2005:
Hey there,
I was on holiday in Clearfield Utah. Here i found this spider in the bathroom. I'm from Holland so I don't have a clue of what kind of spider it is. I wondered if you could tell me. Thanx in advance
Greetings Gerrit Hoogland,
The Netherlands

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4 October, 2004:
Attached are three pictures of a spider I found in my bathroom. The third picture is blurry, but includes a dime to show the size. Any help in identifying this spider would be helpful.

Thanks,
Rob Provost

Reply: That looks like it could be Dysdera crocata,  the woodlouse hunter too. Check out these links: Click here or here.
 

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Reply: This looks like a woodlouse spider. Here's a link to a page on them:
http://spiders.entomology.wisc.edu/Dysderidae/Dysdera/crocata.html
29 July, 2004
I live on southern Vancouver Island, and these spiders are very common around my house, and I was wondering if you knew what they are. They generally live under things like rotting logs, or flower pots, but have been known to come inside. They can climb up and down smooth surfaces and they run very fast. They sometimes burrow in sand or dirt as well. Here are some pictures I took this morning; it was rather easy to find a spider. The spider is about 5 or 6 cm long, legs included.

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