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

Does anybody know genus or species of this specimen of Sternorrhyncha?

I found it in Germany, Bavaria, in a humide mixed forest, 2015-08-11, 01:15 h at artificial light. Length about 5mm. I think it will not be possible to get the species with this picture, genus or...

02 March 2016 6,260 5 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

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Is IMPACT FACTOR justified in case of Taxonomy?

There is huge pressure of getting good impact factor on scholars now a days. On the other hand Taxonomy is a very dry subject and the concerned papers can only get citation in same group of organism.

26 February 2021 5,851 1 View

Is this moth a Diatraea saccharalis?

The caterpillars of this moth were found in stems of Echinochloa polystachia grass as stem borers. The length of the caterpillars are something about 1.7 cm. I have compared images from the...

24 February 2021 309 3 View

Are these moths Spodoptera frugiperda?

The caterpillars of the moths were collected as fruitborers in pepper at a farmer. I reared them till the adults hatched and compared them with pictures and descriptions on the internet. Are these...

24 February 2021 7,785 5 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

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View

What is the correct common name for Hydrochoerus hydrochaeris?

There are two extant species of Hydrochoerus: Hydrochoerus isthmius, the lesser or Panamanian capybara, and the genotype species H. hydrochaeris. The latter is the more common species of capybara,...

11 February 2021 3,494 14 View

Extraction of DNA from insect samples conserved in silica gel?

Hi everybody, can anybody suggest how to extract DNA from insect samples conserved in silica gel (in my case, mosquitoes)? Does anybody know a commericial kit which does that or a particular...

10 February 2021 3,392 4 View