Can you give me some studies showing that glyphosate directly harms insects?

Glyphosate is mentioned as a factor in the sharp decline of insects. That insects disappear when their food plants are destroyed is clear. There are controversial views on the direct effect of...

31 December 2017 7,702 9 View

Is this an instar of an insect?

Last week I took a photo of a butterfly (Melitaea athalia) on a thistle (Cirsium sp.). When I was looking at the picture at home on the computer, I noticed the marked object at the seed head of...

07 August 2016 4,806 17 View

How can I distinguish between Cicadella viridis and Cicadella lasiocarpae?

06 July 2016 878 4 View

Does anybody know genus or species of this larva of Coleoptera?

I found this larva in a marsh area of a renatured moor, near a forest. Germany, Lower Bavaria, 2016-06-18. Length about 12-15 mm Thank you very much for your help! Rudolf Ritt

05 June 2016 7,582 10 View

Do scientists tend to gain preferably informations which confirm their opinion and fade out contradictory statements?

01 February 2016 7,499 29 View

Can anybody confirm the determination of this moth?

Determination of moths by photo is difficult to impossible, I know. This applies especially to Coleophoridae. I determined this moth as Coleophora lixella ZELLER 1849. There is a similar species,...

01 February 2016 7,386 7 View

Is this a fungal parasite?

This hymenopteran insect is glued by its efflux towards the plant. I know, that insects like grasshoppers or ants are parasited by specific fungi, which fix the insect in a exposed place. Is the...

31 December 2015 1,175 15 View

Is this Argyresthia curvella (Lepidoptera, Argyresthiidae)?

This moth was found in Germany, Bavaria, Bayerischer Wald, natural garden, 2015-07-07, 535m, Light trap. Is my determination ok? Thank you very much for your answers! Rudolf Ritt

11 December 2015 9,498 9 View

More and more often I watch Primlua eliator flouring in autumn. Is this normal or is it a sign of climatic change?

And supplementary: Has this change of behaviour - over a long time of course - the power to create a new species?

09 October 2015 4,383 5 View

Can anyone tell me the species of this Micro moth?

I think it belongs to Argyresthinae, but I'm not sure. I found it in Germany, Bavaria, wood at a southside leaning with oaks and Carpinus betulus, 2015-07-03; in the night at light, 450m Three...

08 September 2015 4,722 4 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

Any references about insects or animals that can damage or weathering of rock or fossil material?

Are there any references to insects or animals that can cause damage or weathering to the rock or fossil material? books or paper that would be nice. Thank you very much!

24 February 2021 6,805 3 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

How reliable is estimation of copy numbers by absolute qPCR?

Hello, I would like to compare the expression levels of several genes in insects, so I prepared standard curves and estimated copy numbers of each sequence in my samples. But for one of the genes,...

11 February 2021 8,421 13 View

Helicoverpa armigera eggs are not hatching in lab condition, why?

Dear RG friends, I am providing a complete H. armigera diet for larvae and maintaining the eggs in the growth chamber as well as in-room conditions. But since three months, eggs laid from the...

21 January 2021 5,546 32 View

Do you know non-feeding larval instars in insects?

Hi, I am looking for information about insects having a larval instar that does not feed at all. In other words, able to molt to the next instar without acquiring any nutrient. Does anyone know...

20 January 2021 9,387 19 View

Triggering feeding of beetles / how to make them hungry?

Hey, I am working with Psylliodes chrysocephala feeding on oilseed rape. In feeding trials I often have the problem that a huge portion of the beetles do not feed at all. In clip cages I observed...

19 January 2021 9,851 6 View

Can any one suggest the name of Litchi insect/predator?

Is it a type of Ambush bug or what? Thanks

14 January 2021 9,381 3 View

Which sampling techniques can be used for huge flying insects?

Tropidacris collaris is a grasshopper. Adults, which can reach more than 15 of length, are strong flyers and actually they resemble small birds or bats. Most of the time T. collaris is found in...

13 January 2021 3,735 5 View