The scientific study of insects.

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Do butterflies pass over migration patterns to their offspring?

So, earlier, I read online (http://io9.com/butterflies-remember-a-mountain-that-hasnt-existed-for-509321799) that Monarch butterflies veer east during their southward migration to avoid a mountain ...
7
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2answers
1k views

Is this a crayfish hole? or wasp nest?

I'm suspicious that it might be crayfish, which I'd think was insane (I still kind of do), if I hadn't found a dead one around my house earlier this summer. Is that definitely what it is, or do I ...
3
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1answer
159 views

Beetle with long, slender iridescent green body and orange legs

I recently saw this beetle while on a trip in central Texas, USA (in a rural area just before sundown). The body was about 2-3 inches long (compare to nearby chair leg and floorboards) and had a long ...
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1answer
67 views

Identify bee in photo (found in Utah, USA)

A friend took this photo of a bee in his back yard in central Utah (© Jon Mott, CC-BY 3.0). I have no formal training in systematics or entomology, so to me everything looks like the bees' poster ...
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1answer
897 views

What is this droplet of liquid that comes out of a mosquito?

I have been looking at pictures of different species of mosquito and several times I came across pictures where the mosquito seems to be secreting some kind of fluid. In the pictures one can clearly ...
3
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1answer
68 views

What is this small black bug found in Turkey?

What species is this? It was found in Turkey. It was dead, I did not kill it.
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40 views

Animal identification (larva)

I found a tiny, white animal in my mouth on the morning of June 28, 2015, in Toronto, Ontario. Luckily I don't seem to have hurt it. I was eating some sunflower and pumpkin seeds at the time. I ...
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2answers
532 views

How do small animals make loud sounds?

Walking past the park today, I heard a cicada so loud I thought at first it must be some sort of large power tool. How is it that that very small animals like cicadas (crickets, etc.) can make such ...
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31 views

Selection for possibly less efficient egg transfer in Human Botfly life cycle

I have heard that the Human Botfly transfers its eggs through other invertebrates [1], and it strikes my curiosity that if an insect could simply land on its host directly to deposit its eggs, then ...
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38 views

Why do flies leave dirty spots on shiny/glossy surfaces?

I've seen flies leave dark spots on lacquered wood, mirrors, glass and monitors. Why do they do that? Is it some food stash or are they dumping waste in a single spot? Why pick a smooth surface?
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1answer
22 views

Anopheles arabiensis lifespan and sporogony duration

What is the longest observed lifespan of a mosquito, especially of the species Anopheles arabiensis? How long does it take for Plasmodium parasites to develop and move into the salivary glands of ...
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278 views
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517 views

What is this beetle and what are the strange antennae for?

I found this wonderful creature in my yard (I live in the south of France) last night: It was about 2-3cm long, with a hard carapace and wings. It also made loud hissing noises when agitated. I ...
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2answers
487 views

Is this species a variant of a red flour beetle?

Found this little guy crawling around the back garden - South Coast of the UK. The closest things I could find online (with an admittedly weak knowledge of where to look up these things, aside a ...
7
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1answer
95 views

What is this insect that has invaded my home in Texas?

After the recent floods in central Texas this past weekend I noticed my that bedroom has suddenly been infested with these small insects that have climbed in through the window. Previously, the hole ...
7
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1answer
771 views

What dragonfly is this?

I photographed a dragonfly but can't really identify the species using http://www.libellen.tv/. Are there any other resources I could use? The pictures were taken in early June, around 11:00 next to ...
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2answers
886 views

What kind of beetle is this?

I live in Denmark, Europe and I found this insect wandering around in my garden the other day. It's some kind of beetle but i dont know what kind it is or the species. The beetle could also fly and ...
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2answers
85 views

Why do insects avoid being on their back?

I have noticed that when insects are placed on their backs, they tend to turn themselves over quickly or else appear to be in distress. Is there a physiologic, anatomic, or adaptive reason why supine ...
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1answer
199 views

Measuring body size in flies/insects

"Mesothorax length (the distance from the tip of the scutellum to the most anterior part of the mesothorax)" From Bergland et al 2008. Would that be this distance (green line)? If not, how ...
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1answer
159 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 ...
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2answers
5k views

What do ants do with our finger nails?

There is place in my house where I cut my nails. Here, there is an ant hole where an ant colony is seen. Whenever I cut my nails from here, they take my nails inside their hole. I was wondering what ...
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2answers
169 views

What's the name of this caterpillar?

It was found in the state of Virginia, on the east coast of the United States.
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50 views

What species does this moth belong to?

It was found a few days ago in the state of Virginia, on the east coast of the United States.
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78 views

What's the name of this beetle?

I found him in a kitchen located in Toronto, Ontario, Canada.
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1answer
42 views

Insect Identification - Black Cicada

I came across a black cicada in northwest Missouri last week. I am only familiar with brown cicadas. What makes this black one different? Is it a different species, or do the brown cicadas change ...
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87 views

Fire Ant Behavior

I've noticed for the past few weeks that near a small fire ant nest near my house there will be a new concentrated "large" pile of dead fire ants every few days. I went and checked out the pile and ...
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1answer
106 views

Is Batesian mimicry more important for females?

Myrmarachne plataleoides is a jumping spider that mimics the Kerengga or weaver ant (Oecophylla smaragdina) in both morphology and behaviour. However, the two sexes appear different: Myrmarachne ...
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1answer
61 views

How do bumblebees and hornets avoid the negative effects of inbreeding?

I just learned that all hornets and bumblebees except for the queen die at the end of the year and the queen starts a new nest in spring. But that means the next generation of queens have only ...
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22 views

How to calculate the number of sterile insects that must be released in SIT?

The sterile insect technique (SIT) is used to control insect pests through overwhelming the population in sterile males. The increase in sterile males released into an environment causes the increase ...
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1answer
179 views

What is this flying insect?

This insect was captured in Australia near Canberra. It has a very hard exoskeleton and is over an inch long. It seems to have 6 wings - 2 large pairs and one very small pair. I did not see a stinger ...
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2answers
555 views

How long does a mosquito take to land on a host, bite, and fly off?

How long does a mosquito take to land on a host, start its bite, end its bite and then fly off? And what about different species? I am most interested in human hosts. References to web sites or ...
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56 views

Mosquito physics

What are the environmental limitations of mosquitos I should know of if I want to avoid getting bitten? For example: How fast should I walk in order to be moving too fast for one to bite me? Can a ...
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17k views

Are mosquitoes repelled by high frequency sound?

I am totally confused whether ask this question to physics or biology stackexchange. I downloaded a mobile application which claims to repel mosquitoes. This application basically produces sound from ...
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3answers
529 views

I have a black tiny bug crawling all over the house

This bug is crawling all around the house it stays within the shadows and moves very very slow, i have never seen it jump or run, it just moves very slowly P.S. those bugs as u can see are smaller ...
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1answer
53 views

What term describes insects that must eat protein to reproduce?

I know there is a specific term for insects that need to consume protein to produce viable eggs, as well as a term for those insects that don't need to consume protein to produce viable eggs.
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41 views

In insects, does the Alanine repeat occur on the homeodomain sequence of the abdomen or does it occur on a different sequence?

By "Alanine repeat", I am referring to the suppression of the formation of extra insect legs due to Ubx gene suppression through Distal-less repression.
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34 views

Why Insect bites are itchy rather than pain? [closed]

i don't understand if some thing bites or hurt we feel pain, but its differ for insect bites, why so?
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1answer
48 views

Identification of a larva

Last week-end I was working in my parent's garden and when I dig a bit the ground, I found few larvas I never seen before. My father told me there are there every time when he's doing the garden ...
26
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1answer
2k views

Why do ants live so long?

I was surprised to learn that worker ants in some species live many years. I would have expected a lifespan of a few weeks or months (which is apparently the case for many species). What factors ...
10
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1answer
307 views

What is this insect? Found in Peru

I took the pictures today in Cusco Peru. It is the third insect of its class in a month. I never see it before. I thought that it is a wasp, but I think it's really thin to be a wasp. It's about 4 or ...
4
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1answer
107 views

Help me identify this insect

Over the last week or so as warmer weather has arrived, I've noticed small insects crawling around in the bathroom. I'm located in western Europe. They are perhaps 1mm in length, quite difficult to ...
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1answer
30 views

Online resources for entomology?

I'm going to teach a c ollege-level introductory entomology course soon, and I'm looking for free online entomology resources. Does anyone have any recommendations? In particular I'm looking for ...
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1answer
2k views

How many honeybees are there, and how has the number changed across time?

How would you begin to estimate the world population of the European Honeybee (Apis mellifera)? Would recent colony collapse disorder show up as a blip? How about the spread of A. mellifera from ...
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2answers
137 views

What is this bug?

I recorded a video of this bug: https://youtu.be/0eoWfHLEo7A I counted 8 legs, the front legs are a little curved. The drawing on the flat back is dark and looks like the image of Jesus with some ...
7
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1answer
541 views

Identifying an insect looking like a crumle

Recently a little insect crawled over the carpet. First I did not notice, as its appearance is quite similar to the coloring of the carpet. Then I understood that it is not a rolling crumble, as the ...
26
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1answer
14k 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 ...
4
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1answer
129 views

What is the scientific name of this butterfly?

I have this butterfly but I don't know its scientific name. I think that it's a common butterfly which can be seen everywhere (btw, I'm in Taiwan.) Thanks for your help :D
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66 views

Total number of pleura in the exoskeleton of cockroach

Basically as far as i know cockroach consists of 10 terga and 9 sterna but what are the total number of pleura present in the cockroach. Pleura are situated between tergum and sternum of a body ...
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0answers
27 views

Will a store bought cabbage kill my Pieris brassicaes?

About 4 days ago I found a large amount of caterpillars (Pieris brassicae) in my radishes, I took them aside for seeing how they grow and I am out of radishes to give them. I bought a cabbage in the ...
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1answer
81 views

Can silverfish climb and produce silk?

I am equally disgusted and fascinated by the "Silverfish" (Lepisma saccharina) that we regularly find in our UK home. I tried searching for information on the internet but they seem poorly understood. ...