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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12 votes
0 answers
299 views

ID request ~2mm insect monstrosity

This tiny monstrosity (~2mm in length) was inside of some kind of "flat tent cocoon" on a pepper plant leaf in Washington state, USA. Not sure what's going on here. Is it malformed or infected?
9 votes
0 answers
314 views

Insect identification (Brazil, orthoptera?)

This insect appeared in my indoor yard, in southeastern Brazil. The body is roughly 2cm in length and it makes very distinct beeping sounds, in a pattern that sounds almost like morse code, unlike the ...
7 votes
0 answers
86 views

Grasshopper vs Tarantula?

This past weekend (October 2021) while hiking west of the VLA in New Mexico (near Datil, NM, ~2200m elevation) my wife and I came across a strange sight. A small (5cm long), likely immature, ...
7 votes
1 answer
4k views

How dirty are bugs? And is it okay if they touch food?

Sometimes I see people throw out an entire drink or bowl of food because a small bug was in it. Are they justified in doing this? Is there enough bacteria on common species of bugs (like ants, flies, ...
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6 votes
0 answers
220 views

What species is this golden fly?

Last summer I was visited by this unusual golden fly, whose kind I have never seen before. It was impossible to scare away so I could take relatively good pictures. The pictures on this hobbyist page ...
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6 votes
0 answers
177 views

Having a lot of trouble identifying this insect

It was found in central Alabama
5 votes
0 answers
49 views

What species is this larva?

I'm trying to identify the species of what I think may be some kind of Lappet Moth larva? (wild guess based on some internet sleuthing) But the markings don't really match nicely with any photos I ...
  • 359
5 votes
0 answers
45 views

Unknown pentatomid from India

I found this bug last year in August in Bharatpur, Rajasthan, India. The scale at the bottom of the picture is in mm and the size of the bug seem to be about 1.5 cm. It looks a bit like Halyomorpha ...
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5 votes
0 answers
99 views

Identification of a red arachnida (?) (picture and video)

I found this in a greenhouse in Norway. It is a few millimeters in size, I could fit 5-6 of them on my thumbnail. It looks a lot like this one from Wikipedia https://en.wikipedia.org/wiki/...
5 votes
0 answers
95 views

Insect ID, Ecuador

Picture was taken in the Ecuadorian Amazon in January 2019, during the day, elevation about 300 meters. The size was not recorded but might be no bigger than a housefly judging from the photo. It ...
5 votes
0 answers
102 views

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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5 votes
0 answers
67 views

Help me identify this fly species?

I found this fly in Bengaluru/India. It was larger than usual flies. It was more than 1cm in size, with black color which has blue shades in it. I managed to take just this one pic, then it flew away.
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5 votes
0 answers
67 views

What are this designs which I found on curry leaves?

Curry leaves is the plant name where I found designs, but what are the designs present on the leaf? Location: Argentina
5 votes
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899 views

Is it possible to estimate the age of a wasp nest by its size?

Long story, but briefly I am debating knocking down a paper wasp nest. I don't want to kill the wasps, because (1) they're beneficial wasps, and (2) I would not have even known they were there, except ...
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5 votes
0 answers
216 views

What is this insect found in Western Arkansas?

I had my cup of water outside with me, went inside for a few minutes, came back outside and this insect almost found out what was unpleasant about being drunk. It's 1-2cm long, mostly black, with ...
5 votes
1 answer
357 views

What is the conical mouthpart of a soldier termite and what does it do?

I'm trying to get a visual understanding of termite anatomy and I'm getting quite confused on the protruding mouthpart area (it looks like a beak) located between the pincers. What does it do / what ...
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4 votes
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46 views

What is the ball of jelly on the left eye of this mantis?

This mantis was seen in the wild in north Israel. It would be great if the Mantis species can be identified too.
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4 votes
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73 views

Identification of huge larva in South Tyrol

On a sunny autumn day (19.09.2021) i saw a huge green larva crossing the street facing a wineyard. The picture was taken near Bozen, South Tyrol (22 °C that day). It is at least 14 cm long and 2 cm ...
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4 votes
0 answers
50 views

Please identify this syrphid (hoverfly)

Last summer I took these pictures of a member of the Syrphidae on my balcony (Switzerland, Geneva area, Alt. ~380m, June 2020 @19:14) Pictures: I hesitate between three species but it could also be ...
  • 1,339
4 votes
1 answer
616 views

What are these small, indoor bugs?

I live in Switzerland and have noticed these small bugs appear in my bedroom, either slowly crawling on the parquet flooring, lazily buzzing around or dead on my windowsill (as pictured): I'm not ...
4 votes
0 answers
542 views

Why is the coremata of Creatonotos gangis huge?

This Australian moth has been some kind of curse image online due to its scent organs (coremata). It is inflated to attract mates. However, why does the coremata have to be inflated for it to work, ...
4 votes
0 answers
168 views

What is this small black insect with an orange stripe?

Sorry for the poor quality of the second image, but a slightly different perspective may be useful. This was taken in South Africa, Western Cape during the day. They're fairly small, maybe around 5mm ...
  • 141
4 votes
0 answers
61 views

Why do some ant workers still wander at night?

As far as I have seen, the vast majority of workers in colonies of diurnal, non-nomadic species return to their nests and remain there at night. The colonies seem to forage largely during the day. ...
  • 1,298
4 votes
0 answers
37 views

Mayfly identification - Oregon

Found in a web by a very small, slow moving stream. Douglas-fir forest in Gales Creek area, April 28.
  • 649
4 votes
0 answers
65 views

What bug is this? (England)

I have found this small bug on the wall in my bedroom, and have been trying to figure it out what it is for months. There are more of this kind. They are tiny, I can't see how they look like with ...
  • 41
4 votes
0 answers
91 views

What species is this beetle (trichius family)

I took this picture in Jura region (Northern Switzerland, alt: ~700m) of that beetle (July 2018). It was taking food from a flower of a Morus nigra. It seems to be ...
  • 1,339
4 votes
0 answers
45 views

What do groundhogs and other subsurface-tunnel dwelling creatures do in heavy rains to avoid harm?

I notice groundhogs and many other tunneling creatures in my yard, the same yard which became pretty flooded during heavy rainfall. I don't see wildlife out during rain storms, but not long after, ...
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4 votes
0 answers
151 views

What species is this mosquito-like insect?

I found this in my room in Serbia. It's not a local type of mosquito that I'm familiar with, so I'm very interested. It flies like a fly but it looks like some kind of mosquito. I am looking forward ...
4 votes
0 answers
157 views

How do ants get oxygen in deep colonies?

With ant colonies getting to be +7 feet deep, how does oxygen renew that deep for their respiration demand?
4 votes
0 answers
125 views

Identification of a bug in Vasai, India

Can someone please let me know what insect this is? This may be something very common, but this is the first time I have seen them and that too suddenly in a large number. They were mostly on ...
4 votes
0 answers
131 views

Is this a young Ash Bud Moth (Prays fraxinella) caterpillar?

I am building up a my knowledge of organisms that live on trees (not necessarily as pests, but in the respect of the biodiversity that depend on different tree species) and their interactions. Living ...
4 votes
0 answers
62 views

How to anaesthetise mosquitoes during a mass-trapping field study?

Do any of you have experience in anaesthetising mosquitoes during a mass-trapping field study? Normally, mosquito traps have a little net in which you catch the mosquitoes. The nets can, after ...
4 votes
0 answers
6k views

What are two butterflies doing when they fly together, 'hitting' each other?

I've Googled this subject extensively but couldn't get an answer: My country is full of butterflies and moths, I've seen a lot of butterflies performing what looks like some kind of fight or mating ...
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4 votes
0 answers
109 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
0 answers
51 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 ...
4 votes
0 answers
298 views

Why do mosquitoes not collect blood after platelets activate?

This may be anecdotal... The Indian sub-continent is in the rainy part of summer. It follows the mosquito population goes up. So when I sliced my palm, I expected the mosquitoes to collect there in ...
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4 votes
1 answer
212 views

Help to identify larva found in sink?

I need some help in identifying this critter. It was found in southeast Georgia in a home I am renovating. There were several around the sink and toilet bowl. Approximately 5 millimeters long. ...
3 votes
0 answers
55 views

Colorado insect identification

Found this bug in my backyard, but was unable to identify it. Thanks for any hint! Edit : I live in the south east suburbs of Denver, Centennial. So this is quite an urban area. I found this bug on my ...
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3 votes
0 answers
51 views

What are these most tiny bugs called

These bugs are the smallest bugs I've ever seen in my life and they are very annoying, throughout the day, I just feel sudden scratches on my body and when I look closely, the cause are these bugs ...
  • 131
3 votes
0 answers
32 views

ant ID montreal, qc canada

I'd like to know what type of ants this is. These appeared in my basement recently. I am thinking those are called "pavement ants" after comparing online. Please help me identify them. ( ...
  • 131
3 votes
0 answers
56 views

What species of insect is this, spotted south-east of Berlin? Habitat: forest near lake shore, Size: body 40mm, w/o antennas and ovipositor

This insect has been spotted south-east of Berlin (2021-10-31).
3 votes
0 answers
22 views

Can someone identify this male Zygaenidae (subfamily Procridinae)?

Photo taken in 2018, Near Berlinchen, Germany. The immediate vincinity is Calluna on sands. The area has a an interesting vegetation with heather and broom, species-rich grasslands on poor and ...
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3 votes
0 answers
89 views

What is the minimum atmospheric pressure at which bees can live/thrive?

Bees are amazing little critters. (Gosh, they're cute.) But what if we colonize Mars and start terraforming it? At what point will bees (and other insects) be able to live/thrive in that environment? ...
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3 votes
0 answers
81 views

Identification of the bug on the curry leaf- Delhi, India

I found this bug on my curry leaf in early morning. Which bug is this? Size- 1-2 cm Habitat- Delhi, India. The bug was on one of the curry leaf of the curry plant pot in my residential balcony Time- 7:...
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3 votes
0 answers
81 views

What is this insect in Southern Colorado?

We have found this insect in a bit of a swarm on a concrete pad and on some insulation next to and around our greenhouse in which we have tomato plants. The insect is about 2mm wide at its widest, ...
3 votes
0 answers
139 views

What kind of worm/bug is this?

Recently, I found a few worms in my bathroom and I am wondering what kind of worms are they. They move slowly and they are about 6-9 millimetres long. It seems that they are not sensitive to water. ...
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3 votes
0 answers
128 views

Identification of larva on cat fur

I found this larva (assuming it is a larva) when my cat jumped off my bed, I'm assuming she just picked it up outside. However, I'm not quite sure what it is or if it should be a concern she had it on ...
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3 votes
0 answers
359 views

Can someone help me identify this larva?

I found this creature in my toilet bowl and very curious as to what it is. The main reason is I want to make sure this wasn't a parasite living in me. Everything I've researched tells me this is some ...
3 votes
0 answers
36 views

How do apiarists cultivate homeycomb without nicotine or a smoker?

I don't see a better stack site for this so I'll just post it here. I remember an apiarist I met saying they cultivated honeycomb without a smoker or anything like that, but I never asked them how. ...
3 votes
0 answers
89 views

What is the name of this moth and why does it have an extra wing?

Moth of length 15mm. Seen in Kerala, India on March 2019. Third Unusual wing part visible. Without mobile flash the colour of moth visible is completely black.
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