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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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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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What kind of spider is this? (Greece-Santorini)

Found it in Greece at the island of Santorini, and I've been keeping it as a pet from October until now.
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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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Why, evolutionarily, does the genus Latrodectus have such potent venom?

As far as I know, the venom of most species of spider in the family Theridiidae is not dangerous to humans. However, the genus Latrodectus is well known for having venom medically significant to ...
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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 ...
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Identify this mite from Rajasthan (India)

Can anyone tell me the classification of this bug? I found it in Rajasthan after it rained.
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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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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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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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Is this a Wolf Spider?

I live in Illinois and this came running across my living room floor. After I stopped freaking out, I threw a bowl over it and called someone to come get it. It was about 5” across. My son thought ...
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What is this weird spider?

Today while we're cleaning our storage room I saw this strange looking spider and I'm not even sure if this is a spider, it has two claws folding inward to its mouth and two long weird limbs, it is ...
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Identification of a spider

I have found this spider in my home, North London. I've been told it may be a false widow but wanted a second opinion.
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Request for an ID of two spider species found in Australia, NT

These two spiders were found in the Northern Territory in Australia in July (winter time). Both arachnids were shot during the night (I suspect them to be nocturnal), and both were found close to the ...
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What spider is this? Found in Hawaii

I found this spider at the edge of a park in Hawaii. ~1cm in length. The area I found it was very dry and had thick tall grasses just a few feet away.
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Identification of Unknown Insects found in landfill (tiny, full of hair on body)

Could someone help me to identify the following insect with full hair on body? They are very small, so I use macro lens to capture them. I have tried to capture them as clearly as possible. They were ...
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Can someone help me identify this spider?

Can someone help me identify this spider? Saw it in Malawi; aprox. 5 to 6 cm. Seems like a Solifugae but I cannot go any further... I thank you in advance!
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What spider is this? BOLIVIA

I was in Cobija in northern Bolivia, and these spiders were hanging around a lamp post. There were over 100 of them. The picture is not a good one, but I can describe them: They were black with light ...
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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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Is this a common garden spider?

Spotted this outside my window today. Looks like an orb-weaver, but I can't tell whether it's a regular garden spider or not. What species could this be? This picture was taken in Bangalore, ...
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Could I use spiders to catch unwanted insects?

I was wondering if its possible to catch spiders and place them in my greenhouse in order to kill unwanted insect that feast on my plants? I don't really mind presence of spiders since then are not ...
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What is this spider spinning a bright green web?

Here is the picture of it I took with my phone while I was out working: Here is a close up: Location: Texas (winter).
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Identification of Unknown Insects found in landfill (spider like)

Could someone help me to identify the following spider-like insects? They are very small, so I used a macro lens to capture them. I have tried to capture them as clearly as possible. They are about ...
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3answers
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Is arachnophobia connected to lower immunity against spider toxins?

Are arachnophobics more subceptible to toxical effects coming from spider toxins?
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1answer
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What kind of spider is this from Sydney, Australia?

I was cleaning the pool when this guy crawled on my foot. I hit him away and noticed a bite mark. I managed to snap a photo of him. I went to the doctor because I was worried it was a funnel web and ...
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What kind of spider is this from Nova Scotia, Canada?

What kind of spider is this? It was found in Nova Scotia, Canada and is about the size of a quarter.
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What is the identity of this spider from India?

I came across this strange guy today at my classroom in Tamil Nadu, India. It is a spider which is not very much bigger than an ant but with an artistic body. He has 8 legs, but the two on the front ...
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What spider is that in south of Brazil?

I'd like to know if it is possible to identify the spider in the photo below. In fact, as shown in the next picture, it is very small. Location: South of Brazil.
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Spider with brown zig zags on abdomen and black head

Found this spider roaming around my room the other day.. can someone tell me the species? Location: Central KY, USA Also, here's a video of him moving around in a glass candle lid, where you can ...
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What kind of spider has colonised my timber framework?

I'm in the south east UK. I have a site I'm doing intermittent timber work on, that's been left idle for much of the summer. When I came back it has huge webs strung from walls to beams and across the ...
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Found this spider in my bed last night.. can someone help ID?

As I was going to bed last night, this little guy greeted me when turning the covers. Can someone help ID this for me? I'm located in Kentucky, USA. Demonstrating size, compared to a bottle cap:
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What species is this spider?

A friend of mine saw this monstrosity in Taiwan. The photo isn't very clear but you can't blame her considering it was the size of her face. Wanted to know what species it is so I know where they ...
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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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Is it necessary for spiders to both wrap the prey in silk, and inject them with venom?

I stumbled upon the following paragraph on the Wiki page about Argiope bruennichi: When a prey item is first caught in the web, Argiope bruennichi will quickly immobilise its prey by wrapping it ...
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Which spider species is this, and is it dangerous?

Sorry for a quite bad picture. I was afraid to get closer! Seen in Croatia, inlands, not near sea. As he is on the picture there with the legs stretched out, I'd say he was about 8-10 cm in length.
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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?