The scientific study of insects.

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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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1k 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
87 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 ...
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16 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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496 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 ...
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11k 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 ...
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1answer
89 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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30 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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22 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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63 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. ...
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82 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?
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24 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 ...
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29 views

Can anyone identify this mystery caterpillar?

I found this caterpillar in in El Cerrito, CA and was wondering what kind it is?
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54 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
65 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 ...
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1answer
35 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 ...
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1answer
22 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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22 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 ...
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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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48 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 ...
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1answer
20 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 ...
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1answer
61 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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38 views
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47 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 ...
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68 views

Why do moths not die when they fly into a window?

Sometimes at night when I'm inside with a light on, I can hear (I'm sure) moths fly into the window, and it's so loud I can sometimes hear it over the TV from the other side of the room. Since ...
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21 views

Cockroaches and magnetic fields

Aloha, I live in Hawaii working with sharks and their sensitivity to magnetism but here we also have large cockroaches. Has anyone worked with cockroaches and magnetism? I wonder if placing high ...
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2answers
696 views

Species ID: Cape Town mystery insect

This insect bumbled into my bedroom last night - can someone ID it for me? I'm mainly curious because I'd like to know if it poses any danger to my cats (who were very eager to add it to the menu). ...
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47 views

Identification of unknown bagworm (Singapore)

This bagworm was found in Singapore (near McRitchie Reservoir) some time in June 2012. This is the plant from which the bagworms were obtained: A few examples of the bagworms: The bagworm when ...
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23 views

What is the most effective way to eliminate silverfish (g. Thysanura) from walls and floorboards?

I've had our home fumigated, but the silverfish seem to return unaffected. Are their eggs unaffected? What's the best way to eliminate them from your home?
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226 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?
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2k views

How many mosquitoes would it take to “drain” enough blood to put a person into shock?

I'm just curious, how many mosquito "bites" (mosquitoes which have removed blood from a person) would it take to remove enough blood to put a person into shock? (Putting aside all reasons why it ...
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38 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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785 views

Are spiders part of the study of entomology?

The definition of entomology says it is the science of studying insects. I know spiders are not insects but does entomology include studying spiders as well? Otherwise is there any name to the ...
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44 views

I brought a hibernating yellow jacket queen into my house accidentally. What will happen?

There was apparently a hibernating yellow jacket queen in my stack of firewood outside. An hour or so after bringing in the firewood, we saw the queen fly off into the house, where we can't find her. ...
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87 views

How to attract spiders to my house?

I've been living in my apartment for a year now, and noticed something lately. During spring and summer I have quite a lot of midges indoors, and even now there are some. But there are no spiders! So ...
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93 views

Does a presence of ants on a plant mean that the plant has been infested by aphids?

Ants protect aphids from their predators (such as ladybirds): Aphids and other hemipteran insects secrete a sweet liquid called honeydew, when they feed on plant sap. The sugars in honeydew are a ...
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1answer
43 views

Is this a carpenter ant?

I stumbled upon a few hundred of these swarming around two different places in my living room today. They kind of look like a carpenter ant to me, but I'm not sure. Also, I'd love to know how you ...
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1answer
193 views

How long does it take for a cricket to die at subzero temperatures?

I am on a number of reptile groups and I often hear freezing recommended as a humane way to get rid of surplus feeder insects. However, they can also revive if you don't leave them in there long ...
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Classification of degree of infested areas by pine processionary moth on regions

I'm making a thesis about pine processionary moth distribution on the regions of algeria! i'm making tests about if there are spatial autocorrelation of this insects on the regions. and i'm doing ...
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72 views

To what extent is immature eggs in insects (beetles) a good approximation for maximum fecundity?

To what extent is the number of immature eggs from dissected, newly emerged individuals a reasonable approximation for maximum/potential fecundity in insects (more specifically beetles)? I know that ...
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112 views

Why do the ants eat cockroaches' head first?

Sometimes I see in my house there are flipped cockroaches whose lose their heads. Only my cat and ants want to play/eat them, and I don't think my cat would like to pull their heads out. Do you have ...
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86 views

Do “Giraffe Weevil” males build Nests

I had came across an insect near my backyard in India(Kerala). I haven't seen this one before and I searched web to find out what insect is this and found its image which saying its a "Giraffe ...
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1answer
34 views

Are bees positively phototropic

One day I had found some bees have come around the light source like other positively photo tropic insects, I hadn't seen any bees coming over light before. I think bees are diurnal and they don't ...
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4answers
151 views

What type of insect is this?

I'm naturally thinking this is a bee, but I cannot find it anywhere in any insect identifiers. I caught this picture on top of my doorway, it's about 1 1/2 inches in length, and its torso seems to be ...
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217 views
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262 views

Why does a cockroach not die even after decapitation?

Why does a cockroach not die after its head is cut off?
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32 views

Pollinator mating system in orchids

I came across three terms in an article on pseudocopulation. However I don't quite understand what it means. They are: 1) solitary and haplodiploid 2) social and haplodiploid 3) diploid These ...
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57 views

Do mosquito repellent sprays work on all insects?

I would like to know the mode of action of mosquito repellent aerosols. Are these specific to mosquito or are other insects affected too?
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1answer
95 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 ...