The scientific study of insects.

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2answers
675 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 ...
2
votes
1answer
188 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?
3
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1answer
40 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 ...
7
votes
1answer
634 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 ...
6
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2answers
519 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
182 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
792 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 ...
8
votes
2answers
944 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 ...
1
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2answers
135 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 ...
4
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1answer
283 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 ...
5
votes
1answer
288 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 ...
4
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2answers
216 views

What's the name of this caterpillar?

It was found in the state of Virginia, on the east coast of the United States.
4
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1answer
59 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.
3
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1answer
112 views

What's the name of this beetle?

I found him in a kitchen located in Toronto, Ontario, Canada.
4
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1answer
100 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 ...
6
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1answer
99 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 ...
7
votes
1answer
120 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 ...
4
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1answer
69 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 ...
4
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0answers
31 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 ...
4
votes
1answer
230 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 ...
11
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2answers
1k 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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2answers
102 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 ...
17
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2answers
20k 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 ...
7
votes
3answers
3k 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 ...
1
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1answer
63 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.
2
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1answer
48 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.
0
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1answer
58 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?
2
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1answer
59 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 ...
27
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1answer
4k 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 ...
4
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1answer
168 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 ...
2
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1answer
36 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 ...
5
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1answer
3k 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 ...
7
votes
1answer
717 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 ...
27
votes
1answer
20k 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
votes
1answer
466 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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0answers
98 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 ...
4
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0answers
33 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 ...
2
votes
1answer
138 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. ...
7
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2answers
279 views

Do butterflies see behind?

Butterflies, like many other insects, understand that I am getting near from behind. How do they feel this - through vision, hearing, or some other sense?
0
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1answer
92 views

What, if any, diseases do larder beetles carry?

I found one of these beetles on my bed as I was attempting to get in. I'm 80% sure my cat carried it in (I found it in the exact same space he had been sitting ten minutes previously). My question is ...
2
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1answer
46 views

Can anyone identify this mystery caterpillar?

I found this caterpillar in in El Cerrito, CA and was wondering what kind it is?
4
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1answer
524 views

Why does cucumber skin kill ants?

I recently read that cucumber skin is an effective repellent for some ants: Set out cucumber peels or slices in the kitchen or at the ants' point of entry. Many ants have a natural aversion to ...
5
votes
1answer
58 views

What worms devour the body?

I was reading http://www.webmd.com/skin-problems-and-treatments/acne/adult-10/slideshow-adult-acne which broached comedones, an esoteric word to me; so I thought to look up its etymology which I find ...
4
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1answer
29 views

What's the maximum pressure inside a bombardier beetle?

This question got me wondering about the pressure inside a bombardier beetle. Lots of articles mention pressure, but don't specify the amount of it: One study records the velocity of the spray to ...
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0answers
119 views

What is the chemical makeup of mealworm frass?

We have been raising mealworms for some time and while mealworm frass has proven very useful as a plant fertilizer, I started wondering about other potential uses of this leftover waste. Can someone ...
1
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2answers
63 views

I photographed a couple of butterflies and birds in Argentina but can't identify them. What are my options? [closed]

I photographed a couple of birds and butterflies in Argentina and tried to identify them. I tried online species identification tools, looked in books, and just tried to find pictures on Google with ...
2
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1answer
28 views

By what method do ants dissect and hold soil

Not sure if this is the correct stackexchange site - please migrate/advise as you see fit. I'm interested in the method by which ants "break off" a small amount of soil and then hold it in their jaws ...
1
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1answer
93 views

How do butterflies defend themselves from other creatures when they don't have the ability to sting or some other offensive/defensive mechanism?

How do butterflies defend themselves from other creatures when they don't have the ability to sting or some other offensive/defensive mechanism? Butterflies are part of the class of Insects in the ...
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1answer
60 views
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1answer
61 views

Was Earth's atmosphere more buoyant in the prehistoric era then today?

The mass and size of the dinosaurs and prehistoric insects continues to amaze me. I read from an earlier post that oxygen was more abundant during the prehistoric era. However supporting the weight ...