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Questions tagged [arachnology]

Arachnology is the scientific study of spiders and related animals such as scorpions, pseudoscorpions, harvestmen, collectively called arachnids. It can include the study of ticks and mites which is sometimes also called acarology.

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What is this 5"-across spider found in my bedroom in France?

As the subject-line says, what is s/he? I've removed more spiders than I remember over the years, but one that almost fills a pint-glass was approached with some trepidation!
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Can anyone identify this spider for me? [duplicate]

There is a spider on the window of my office that I've been trying to identify for the past few days but can't quite figure it out. My coworker thinks it's a Furrow Orb Weaver but I'm not sure. My ...
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Can anyone identify this spider

This is in Wroclaw, Poland. I'll be here a few months and I've noticed that they come in large groups in the evening. They are everywhere outside, but I haven't seen any inside. They seem to live in ...
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Can anyone identify whether or not these are bird or rodent mites?

I found these on my patio furniture directly under a bird's nest that has hatchlings. Surrounding landscape is ivy so we do have raccoons and mice in the area.
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What species is this fast-moving spider?

This is a frame from a recent recording: Location Forest in Central Europe at around 1pm. Abiotic factors at the time of recording Temperature = 23°C Humidity = 38% Wind = 6 km/h Description ...
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Can you help me identifying this spider?

I took this picture in Ohrid, Macedonia, it is the first time I see this kind of spider here. This spider was 2-3 cm long and was outside in urban building.
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What is the kind of this wasp killing spider from UK?

I heard a wasp buzzing rigorously and when I looked at it, it was caught in a spider web. The spider was on top of the wasp. After some time, they become silent. When I exhaled gently on them, spider ...
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What kind of spider is this, please?

I've found this spider in my bathroom today, never seen one like this, especially since I'm living in part of Europe ( Bosnia, Balkans ) that isn't known for being promised land for spiders. This one ...
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What kind of spider do you think is this?

This spider has been hanging around my front porch for the last few days. Just wondering what it is and if it's harmless.
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What kind of spider is this? First time I have ever seen one

This was taken 07/06/19 in Cape Breton, NS, Canada. I would say that it is about an inch (2.5 cm) in length and seemed to be pretty uniformly grey. The belly was the same colour as the legs, it had a ...
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Is this spider venomous?

I found this spider in bathroom. Just wanted to know more about it. Location : India(South India,Hyderabad) Temperature : 30°C Humidity : 74%
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Bug Identification: Tiny Bugs

I have seen these on my hands recently and I am wondering what they are. Urban Setting. South Central Pennsylvania.
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is this a brown recluse spider?

What kind of spider is this? SE Michigan, light brown color, second picture less focused but w tape measure for scale. Thank you!
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Black and orange spider, what is it?

Found in Alexandria MN, on sidewalk. Small, fast little spider.
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What are the differences between insects and spiders?

I have always been told that a spider is not an insect, since the former has 8 legs and the latter 6 legs. Is it just a matter of definition and spiders could have been defined as "8-legged insects"? ...
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Identify My Spider

I live in Littleton Colorado and caught this spider because I haven't seen it before. Any idea what it is?
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what is this bug ? i found it on bed 2 times

What is this 1mm long bug I found on my bed in Egypt? Here is its back photo
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What kind of spider is this? hoping its not poisonious

Found outdoors, after it was killed we found little tiny baby spiders on our ceilings throughout our house. really wanting to know if this spider is venomous or not as we have a baby of our own in the ...
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Tiny huntsman found in Czechia?

I found this spider today and I'm curious to know what it was. Discovered today at 14:27 CEST, about 200 meters from Hamr pond, Prague, Czech Republic. It may have been carried all the way from the ...
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Do tarantulas and humans have the same mechanism for growing hair?

There's hair on my arms. Tarantulas also have hair on their arms. Is this the same type of hair?
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Can someone help me identify this Brazilian spider?

Does anyone know anything about the identification of this spider? Sorry, but it's the only image I have. It was shot at 2004, January 25th (summer), at 11:27 AM, in Cerrado biome at Minas Gerais ...
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What kind of spider is this? Bolivia

Can anyone help me identify this spider found in Cochabamba, Bolivia. It is quite small. This photo shows it on a normal mortar layer between brick.
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Tiny white very hard cell bug! Please help to identify!

I found these bugs walking on the floor/ wall and on my laptop. And unfortunately I think they could be in my bed, too, since I bring my laptop to bed sometimes. I live in a big city in the ...
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Leaf-curling type spider southeastern US

I have a spider in my backyard in Mobile, AL. It seems to have sewn itself up inside of a living water oak leaf. I tried googling it but only came up with this Austrailian spider that does a similar ...
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Identification of Black-Grey Striped Spider (India ,Kolkata)?

I found it on my rooftop . Location : India , Kolkata Season : Summer Morphology : Hairy Legs , with black and grey striped body . Length- 4cm -5cm with legspan Width - 2cm-3cm I couldnt get better ...
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Spider Identification (UK)

I found this spider (~10 mm body length) indoors on a wall (South-East England) and I was wondering what species it was. My first guess is false black widow, but I can't be sure. I'd be grateful if ...
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10 inch spider near Mexico City

Four years ago I found a spider so big that I'll never forget. Unfortunately I don't have a picture but I guess there isn't a lot of big spiders in Mexico. So here are some things I remember: It wasn'...
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Is this a venomous (poisonous) spider?

Today I found a spider in my home that I have never seen before. I live in Karachi, Pakistan. I want to know which spider is this and if it is venomous and danger for me or my family ?? Is this ...
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Spider found in bathroom can’t identify

Found this spider in my bathroom on the wall by the door. Near Houston, TX.
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Identification of a small flat bug

So for the last few days I have been noticing these small bugs in my bathroom -- they don't appear frequently, and I see them once or twice a month. The characteristics and behavior I observed are as ...
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What type of spider is this that just decided to stop my plans of sleeping

This tiny little spider decided to stop my plans of sleep at 1am, since I have no plans of getting to sleep any time soon may someone tell me what type of spider could be this monsterous!
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How much energy does a spider expend per day just waiting for its web to vibrate?

Roughly speaking, a small, complex electronic circuit or IC might sit in "sleep mode" using a current of roughly 1 µA (e.g. 1, 2), thereby using roughly $3\times 10^{-6}$ Watts, and that ...
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Where do the nutrients come from for a spider's first web?

Spider webs are useful for catching prey, which provide the spider with nutrients. Yet it takes nutrients to make the web in the first place: amino acids to make the proteins of the spider silk, and ...
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What are these tiny, swarming, jumping bugs?

I built a small plywood box in my yard (on Long Island, NY, USA) for some stray cats about a year ago. I didn't bother waterproofing the box, and so over time the box has gotten damp. About two weeks ...
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Never seen a spider with this pattern before

Found this spider at work in the Leicestershire area of the United Kingdom. Never seen one with this kind of pattern on its back before so was curious as to what it is. (Size: 2-2.5 inches)
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What spider species is this?

I saw this spider yesterday and it was the first time I saw one. It had a log slender body and an almost tail like end. It also can apparently jump. Just wanted to know what species this is. Location (...
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Do these large spiders in Taiwan belong to different species?

I see both of these spiders (and others) frequently on hiking trips outside of Taipei. Their large webs are often high overhead between trees but can be right across a hiking trail that hasn't been ...
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What is the name of this red and blue striped spider (?) - Brazil, Rio de Janeiro

Anyone knows the name of this thing? I found it in our bathroom. It is maybe 10-15 mm. It looks like a spider but the colors left me puzzled
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What kind of mite is this?

I found this (mite?) on my head skin close to hair. Is it a common dust mite or something else? Photographs under a simple microscope (10x objective) are below. Size is in the order of tenths of mm. ...
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Why is this spider wound in such a dense web?

I saw this thing yesterday on my window curtain, and I've been wondering what this is. It looks like a dense network of spider web, and the spider inside it is visible. I thought the spider was dead, ...
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What spider is that?

It was scared because my cat was playing with it. I saw it tonight (22 October) in Slobozia, Romania. I never saw something like it. The back is white with no points or marks or lines.
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Is this a tick? [closed]

My dog has been vomiting today and I recently found this insect/arachnid near his dog bowl. Since vomiting is one of the symptoms of a tick bite, I am concerned that this insect/arachnid is a tick. ...
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Help identifying spider found in central Indiana US

I noticed this spider outside my garage tonight, and I'm curious if anyone can help identify what type it is. A few details to help: I live in central Indiana, United States. I saw it for the first ...
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Identification of Jumping Spider Species

I found this jumping spider (Salticidae family) in Pune/India. Most common species of jumpers in my region is heavy-bodied jumper (Hyllus semicupreus), but this is different species by observing body ...
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Can anyone identify this spider? Found in Italy

My cousin found this spider at his place. He lives near Milan, Italy, in a small town. It's a humid region, around there the are a lot of fields but it is a 15 km from the city. It's still hot in ...
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Identify a spider

This spider was making a web on the back porch. Just wondering what kind of spider it is?
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Can someone identify this brown spider in California

Spider found on transit case from California. Approx 1 1/2 inches leg span. Is it poisionus?
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Can someone identify this odd looking spider?

I found this spider crawling on my tile floor. We live in rural central Virginia. I’ve found spider species with similar looks but nothing exactly like this. Its size was less than 1 inch. Can anyone ...
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What is the difference between spidroin-1 and spidroin-2?

So I'm doing a research project for my school and I'm trying to decide on the exact nature of the project. My current plan is to try to genetically engineer E. coli or Yeast to produce spider silk ...
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possibly unusual spider behavior?

In Cambridge UK there is this spider: I know not what species but it is common - I think they look good. But look at this behavior. What are they doing? I thought malting but do spiders do that? Why ...