Rudolf Ritt

11 Questions 199 Answers 0 Followers

Questions related from Rudolf Ritt

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...

01 January 2018 7,793 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...

08 August 2016 4,902 17 View

How can I distinguish between Cicadella viridis and Cicadella lasiocarpae?

I heard, this two species are often mixed up. Planthoppers and leafhoppers are not my special subjects, but I often meet a lot of specimen on my moth screen at night. The attached picture I...

07 July 2016 977 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

06 June 2016 7,675 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...

03 March 2016 6,367 5 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,...

02 February 2016 7,482 7 View

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

I heard (Süddeutsche Zeitung, February 6/7th 2016), that people like to sit in a "reverberation chamber", they are consuming only informations which confirm their opinions, because it feels good...

02 February 2016 7,602 29 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...

01 January 2016 1,261 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

12 December 2015 9,602 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?

10 October 2015 4,478 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...

09 September 2015 4,819 4 View