Questions tagged [entomology]

The scientific study of Insects. If the question is about some other group of arthropod use 'arthropod' tag.

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38
votes
1answer
7k views

Insect identification - Is this a bedbug?

This bug was found on a couch in Cape Girardeau, Missouri. The couch, and the two beds in the room show no signs of other bugs. Is this a bed bug that I should worry about or something harmless? It ...
13
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2answers
1k views

What insect is this? (India)

Can anyone tell me what kind of insect (if it is one) is this...!! Or is it the pupa of some insect? Well I don't think that the whole big thing is the insect itself, it appears to be just a kind of ...
10
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1answer
7k views

Questions about insects eating flour and living in the cracks of a wooden cutting boards

I have a large wooden cutting board which is used in my kitchen mainly for preparing egg pasta. The wood type is Populus (poplar or aspen or cottonwood). The main ingredients used with the cutting ...
21
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2answers
2k views

Identifying a creature that appears to be a worm wrapped in a cocoon

This creature was found on a bed. At first, I thought it was a piece of lint, but then it suddenly moved. I picked it up in a paper towel and put it in an eye cream containers, which it is currently ...
7
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1answer
4k views

Identify this smooth-cocoon worm from Southern India

I couldn't identify which species these worms belong to. I believe they're insect larvae. They measure approximately 5 to 10 mm in length, and are common in the southern states of India. They carry ...
1
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1answer
189 views

What kind of insect can this be? This appears to be just a shell after and insect went through a metamorphosis process

What kind of insect can this be? This appears to be just a shell after an insect went through a metamorphosis process.
4
votes
1answer
12k views

Bug Identification: Is this small tubular, black bug a bed bug?

So I found this tiny bug on my wall in the bedroom of my apartment. I estimate it is about 3mm long by 1mm wide. Is it a bed bug? It does not seem to match any of the pictures I've seen online. ...
15
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7answers
12k views

How to protect my mounted insect specimens from … insects?

I have a modest collection of insect specimens that I caught, prepared, mounted, and dried myself. I'm entirely an amateur collector, so my procedure may be causing me this trouble now, but here's how ...
4
votes
1answer
242 views

What is the name of the critter depicted in the attached image?

I found a critter on my bathroom towel. It's really tiny. Maybe 2 milimetres? I placed it on an envelope for the photograph. Can someone identify what it is?
2
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1answer
446 views

What bug is this? I found several in my flat and I have no idea

what kind of insect is this? is it a moth larvea or a carpet bug?
6
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1answer
680 views

Identification of an insect from midwest US

I have been seeing them more and more frequently indoors. I am currently in the Midwest United States, weather has been unusually warm for December, and there are many trees nearby. Can someone ...
4
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1answer
210 views

What small insect is this?

Lately, lots of these little bugs have been lurking in my house in Italy. Should I worry? I'm curious to know what they are. For reference, the 2 cent Euro is 18.75 mm in diameter.
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0answers
75 views

Varied Carpet Beetle Larvae

I keep finding what I'm 99% sure are carpet beetle larvae on my walls, of all places. Yet when I look around and search thoroughly, I cannot find any signs of an(y) adult Beetle(s). Why/how is this ...
11
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3answers
220k views

Small worm living in some kind of cocoon, what are these animals?

I am curious what animal is this. It is/lives inside some kind of cocoon, about 1 cm in length. They are attached to walls and to the ceiling, but sometimes they fall off. Inside the structure there ...
5
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1answer
529 views

What is this animal that hides in dustlike structure?

I'd like help identifying the species of animal in these two photos. There's some dust(or dust-like substance) with something alive inside of it (possibly a larva or I don't really know what to call ...
4
votes
1answer
88 views

Identify these two large, colorful dragonflies in Taiwan?

Here are two dragonflies that I photographed today in Hsinchu county Taiwan. They are both quite large, with a body length of about 5 or 6 cm. I often see them in the same pond or nearby marshy area. ...
3
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2answers
5k views

Insect identification - pantry moth vs clothes moth

Are the following insects a pantry moth or a clothes moth? I live in Europe, if geographical location is of importance in this case. The insects are about 7 - 10 mm in length. For several months I ...
7
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1answer
1k views

Help in identifying an unknown arthropod

I'm not even sure it's an insect: the best I can do is identify it as an arthropod. I captured this slow-moving organism and after a period of observation under high magnification, I concluded that ...
6
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1answer
380 views

What species of insect is this?

I saw this insect near a beach in Corsica France:
4
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1answer
1k views

Taxonomy: Categorising Collembola [closed]

Observe: In some rows (Order, Family), the third column reveals a discerning physical characteristic or body type (...
4
votes
1answer
371 views

What in the world is this critter?

We spotted this thing crawling around a (thankfully empty) bowl in our apartment in Barcelona, Spain. I have never seen anything like it. It appears to be some kind of caterpillar-like insect, but it ...
3
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1answer
2k views

What kind of small insect is this?

Found in central florida in the bath tub. Its about the size of a pencil marking, very small. What is it?
2
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0answers
296 views

What is this insect found commonly in coastal India? [duplicate]

I have lived in two cities on the western coast of India and I have seen quite a few of these insects(?) in both places. It basically has an outer cocoon of sorts, which looks a lot like dirty lint. ...
5
votes
2answers
756 views

Species Identification - small insect

I found a few of these walking in the middle of the night (about 3 AM) on a wall in my room near the floor. They are at most a few millimetres long (no more than 2 I would say). I am living in Poland, ...
3
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1answer
8k views

Small mottled beetle identification

I live in Chapel Hill, North Carolina, and recently started seeing a bunch of these little guys in my house. They're about 1/8" long (estimate), with brown/black zigzag stripes; it's possible they're ...
4
votes
1answer
1k views

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 ...
2
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2answers
99 views

Bug Identification: Tiny Bugs in Fairport NY

We have been finding a ton of these tiny bugs (pin head size or smaller) outside on our patios, outdoor tables, on the grill, etc. What are they and how do we get rid of them?
4
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1answer
347 views

Help identifying tiny jumping bug

I've found a few of these bugs hanging out on my desk. There aren't many. Maybe 5-10 at any given time. Are they a type of springtail? I couldn't find an image in searching that made me say, "That's ...
3
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1answer
786 views

Is it possible to identify this chrysalis?

At least I believe it's a chrysalis. I found it hanging from my gate the other day. I'm in Western Arkansas: More photos here
2
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1answer
46 views

Unknown aquatic larvae

These critters have taken up residence in standing water in a small terrarium. It is home to several frogs and lizards. If they will coexist peacefully, I have no objection. If they will harm plants ...
2
votes
1answer
172 views

Can Anyone Identify This Insect?

I keep seeing these bugs on a wall in my house in Istanbul (Turkey) walking up and down generally during evening and night. They are about 1 mm long and have a brownish color. I see more of them ...
-1
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1answer
146 views

What is this hard shelled insect in my house?

I moved to a new city in west India last year and I've since, on several occasions, seen this insect on walls and it's usually climbing using its head. It has a greyish long shell and moves in a very ...
101
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2answers
13k views

Can HIV be transmitted via mosquitos?

It is known that HIV is usually transmitted by direct blood or body fluid contact between an infected individual and a healthy person (like blood transfusion or needle sharing): Suppose a mosquito ...
44
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1answer
39k views

Why do cockroaches flip over when they die?

This question has always mystified me since young. For beetles, I can reason that they flip over because they have a higher centre of gravity causing them to be in unstable equilibrium when they tuck ...
21
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2answers
4k views

What is this yellowish insect?

I found this insect inside of my shoe. It is approximately 1cm in length and less than half a centimetre wide. It was found in the Netherlands, in the province Gelderland. Close shot Distant shot ...
17
votes
1answer
697 views

Help me identify this insect from Bangladesh

I have seen this insect flying literally everywhere in Dhaka city (Bangladesh) over the last two months. It's small -- around 1-1.5 inches long. It's not an agile flyer and can be easily grabbed by ...
9
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2answers
367 views

What's the name of this bug from Toronto, Canada?

It's about 3 millimetres in length. Found on September 10, 2015.
8
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2answers
9k views

Can ants sense food from a long distance?

I recently had ants find and then swarm to a food container that I put down on a desk. I'm curious as to whether an ant would have needed to get lucky (i.e., discovering the food after crawling up the ...
6
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3answers
8k views

Why does a cockroach not die even after decapitation?

Why does a cockroach not die after its head is cut off?
2
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3answers
152 views

Is there any disease in common between human and insects?

I am not asking about disease transferred by insects. I am wondering is there any disease that commonly make both human and insects sick?
65
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2answers
9k views

Do ants or other insects sleep, and if so why?

I was thinking yesterday about insects (as there was a spider in the house, and I couldn't help but think of anything else, even though they aren't insects), and I started to wonder if ants sleep? ...
32
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2answers
3k views

Why doesn't blood remain on a mosquito's proboscis in quantities that could spread blood-borne diseases?

We know that HIV can't be transmitted by mosquitos, and nor can other highly virulent viruses that are transmitted through blood and bodily fluid exchanges, such as Ebola (thankfully!). Marcus Junius ...
8
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2answers
8k views

Do ants feel pain?

I have watched video on youtube where guy pours molten aluminium into fire ant colony to make casing. In the comments below there's huge discussion on is that a right thing to do. I am on the side ...
8
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2answers
2k views

Why do small organisms make faster movements than big organisms?

I hesitated to ask this question because it seems so obvious and intuitive. However, I am not able to explain this tendency. Background It seems to me that small organisms make faster movements than ...
18
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1answer
4k views

How do ants follow each other?

I was observing ants in my house.They all were going in a straight line and also some of the ants were coming back through the the same line. I took some water and rubbed the line with my finger, ...
15
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2answers
4k views

What is this sand covered insect?

I have found in a wooden house, in the mountains of central Spain this very curious insect: I was wondering if that was its skin or whether it's decomposition or sand or saw-dust. That particular ...
17
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2answers
3k views

Horned Mohawk looking insect. What is it?

Any ideas? I didn't know any other way to explain it. I live in Indiana, USA if that helps. Someone said it might be a "stink bug" but I'm not sure and not willing to find out!
15
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1answer
6k views

Why do flies “rub” their front legs when resting?

I've noted that every time a house fly is resting on a surface, it appears to "rub" or "scrub" its front legs in a repetitive movement. And they do it continuously. Why?
11
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2answers
288 views

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 ...
9
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1answer
723 views

What kind of fly is this?

I found this dude hanging out in my sink, but he didn't fly away when I put a dish in the sink. Turned out it was dead. The front part looks exactly like a housefly. But, I've never seen the back end (...