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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Can anyone identify this species of spider?

These spiders are all over everything on my padio in New Hampshire. Can anyone help me identify what they are?
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Which spider is this? Is it dangerous?

So today while clearing the trash out of my room I found this orange spider on an abandoned piece of foam. It is carrying a weird ball with it wherever it goes. What is this? And to which genus does ...
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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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Spider identification Delaware

It looks like a wolf spider, but I've not seen these exact markings.
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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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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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Do trap door spiders have 10 legs?

I was reading this National Geographic article, 50 New Spiders Discovered In Australia when I became confused by the two trapdoor spider species photographed. I looked up trapdoor spiders and looking ...
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Identification of a spider

I have found this 8mm spider in my home, North London. I've been told it may be a false widow but wanted a second opinion. Note: The silvery parts in the picture are actually brownish in colour
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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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Can dead scorpions still sting?

I found a dead scorpion on the sidewalk today, and brought it home, being careful not to touch its stinger. Bees can sting even after they are dead, if you step on them in such a way that it pushes ...
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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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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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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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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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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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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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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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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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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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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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How much energy do small spiders expend when they are just waiting for their 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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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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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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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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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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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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Identify fuzzy black quarter sized spider with orange on abdomen, in Minnesota

Found this spider on my car in Minnesota near St Paul (USA). Total size including the legs (end of rear leg to end of front leg in picture) is probably about the size of a quarter.
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Identification of this spider?

I find these in forests in Oregon, western half, though they're probably on the eastern half as well. They live under pieces of wood and bark, and have a small web across the ground. Mine will eat ...
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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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Do skin mites reproduce on human face during night?

I've seen this circulating on social networks: I was wondering to what extent is it true. Do skin mites really get on the skin surface to reproduce? Why is it so?
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Identify this Harvestman

I spotted this guy in Switzerland. It's clearly an Opilione (Harvestman), but I really know nearly enough about this diverse group to be able to identify the species. Sorry, I didn't think to place ...
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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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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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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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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 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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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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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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What kind of spider is this? (Photo included)

We found this guy on the ceiling inside today. We live by Lake Erie in Ohio so we see a lot of large spiders, but this one looks different than most we encounter. It's was about the size of a quarter (...
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What kind of spider is this and is it poisonous?

A brown furry diamond shape on its back and brown joints all on black body. Caught entering my house in Trinidad (small island off South America) -- killed the first one, this is the second.
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Help identify this mite?

I saw a decimal-sized dot walking on my hand. I wanted to know what this is, so I got it onto some paper and sandwiched below a piece of clear tape so I could keep it in place and photograph it. ...
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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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Can somebody identify this species of spider?

I ran into this cool looking spider in my yard in Banjaluka, Bosnia and Herzegovina. It's about the size of a fingernail and unusually shaped (spherical). Could it be poisonous?
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Identifying a spider very similar to a brown recluse

I took this pic tonight when I saw what I thought to be a Loxosceles reclusa or brown recluse. But when I looked closer, the typical pattern on the back of its cephalothorax seems to be upside down! I ...
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Spider Identification Illinois

I noticed a really huge, beautiful web on my porch last week, and tonight, I discovered its resident. I'm thinking it's an Araneus diadematus (Cross Orbweaver), but I was hoping for some confirmation. ...
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Black spider identification

Location is in Canada / Ottawa I did a web search, but I can't figure out what species it is.
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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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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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Why is funnel web spider venom so lethal to humans and not so much for other mammals?

According to the information from this article, People and other primates are exquisitely sensitive to funnel web venom but, intriguingly, other mammals such as mice, rabbits, guineapigs, dogs and ...