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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Where in relation to their body do scorpions defecate?

When a scorpion expels feces, how do they reposistion their tail to avoid defecating on themselves?
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What's the name of this colorful tiny spider?

Found this colorful spider yesterday in my study. Couldn't find exact match over internet. Does anyone know what spider is this? Is it harmful?
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Can anyone identify this spider for me, please?

I live in Northern Indiana and I’ve seen 3 of these spiders in my house before, all different ones. When I first saw it, it scared me since it’s a pretty big spider in my opinion from what I usually ...
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What large “package” is carried by this large spider underneath itself?

One night in early May in northern Taiwan a strange looking spider carrying a large white "package" underneath itself ran in front of me and stopped, so I photographed it. The package is roughly the ...
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What species of spider is this? Could anyone help

This image was taken in assam, India. The size was around 1cm. Could anyone help identify?
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What is the name of this spider I found in The Netherlands?

This spider is smaller than 1 mm and fast. The spider has tiny hairs on orange coloured legs. The backside of the spider is dark-brownish and has a small red stripe in the middle. I have taken ...
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Can Ixodes ricinus eggs survive in home?

Recently I returned from the countryside with my dog and found in my house three engorged ticks. I indentified them as Ixodes ricinus (maybe incorrectly, but I live in Poland and it's the most popular ...
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What spider is this

Live in London I have this in my backyard. Want to know what kind is it...Also does it bite?
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Bit by unidentifiable spider [closed]

Live in South Florida and was outside cleaning and believe I got bit by this spider. It is painful and need help identifying.
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Unknown mite species in plant pots

Does anybody know what kind of mite this is? It is living in my pepper plants' pots. My region is south of Germany. (Baden-Württemberg) I will try to take another picture including some size ...
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What is this spider found in day time?

. South India Arm to arm about 3 inch in length. Day time. was hiding inside a cardboard storage box.
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Identify this South African spider

A family member saw this spider in her garden in the Cape Town area of South Africa. It's very attractive and I wondered what species it was? Approx size is that it would fit roughly on a 3cm ...
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Do spiders lay their eggs on the same schedule, whether they have mated or not?

I have heard of many instances of unmated spiders laying egg sacs which are, of course, incapable of developing. Apart from a very few exceptions, female spiders release stored sperm from the ...
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Non-Salticidae with °oo° Eye Arrangements

Since childhood, I've always thought of the °oo° pattern of four frontmost eyes as iconic for spiders (note: the pattern does not account for any additional eyes or lack thereof further to the sides ...
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Exactly what kind of spider is this in Louisville, KY? [duplicate]

I took this photo many years ago, but I guess the year doesn't really matter. It was here in Louisville KY, on the outside of a window, on a web it built. It was a couple hours after sunset in the ...
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Curious on the species of a large Orange Spider? [duplicate]

Heres the images of her: She just laid a large yellow fuzzy sack of babies recently (Were pretty sure were just going to deposit her and her eggs in a grove in the forest soon) We have lots of brown ...
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Found this spider in my garden

I found this guy in my backyard. I have no clue what he is, though I'm assuming it's a jumping spider after doing a little bit of searching. For context, I live in Southern California, close to being ...
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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 are these little bugs?

I recently found at least 50 of these little bugs roaming around my window sills indoors in my bedroom right behind the head of my bed. I can’t seem to find what they are. I’d love tips on what they ...
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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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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 small 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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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 ...