11 Questions 231 Answers 0 Followers
Questions related from Rudolf Ritt
Scorpions are known to reflect UV light on their surface and change it into a greenish visible light, spiders are not known to do so. Which Arachnids share this phenomenon with the scorpions?
05 June 2017 9,215 39 View
This specimen of Carabus intricatus (Linnaeus, 1761) raised and lowered the abdomen alternating and spread the cerci (?). There was no other specimen present. It was in the natural environment, in...
28 November 2016 9,027 17 View
Dear collegues I do not even know the order of this grub, maybe it is a beetle? I found it in a humid forest on the lower surface of a foil of a plant, I think it was Lycopus europaeus. On the...
06 August 2016 1,812 7 View
I found this in a meadow in the Austrian Alps at about 1000 m above sea level. It is fixed on the stem of a plant of Compositae. The grub is approximately as big as the figures (eggs?) in the...
04 August 2016 7,578 17 View
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...
09 July 2016 8,875 4 View
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
23 June 2016 329 9 View
Determination only with pictures is difficult or impossible, I know. I thought, it is Acmaeops septentrionis, but I am not sure. Germany, Bayerischer Wald, 320 m, Meadow in a small river valley,...
28 November 2015 1,652 21 View
While attracting Lepidoptera with a light trap, this specimen of Coleoptera, Lycidae, was also attracted and I took a (unfortunately very bad) photograph. I determined it as the very rare...
13 November 2015 4,658 17 View
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...
26 September 2015 9,424 3 View
I know the work of: Lawrence E. Gilbert: Pollen Feeding and Reproductive Biology of Heliconius Butterflies. Proc. Nat. Acad. Sci. USA, 69(6): 1403-1407, 1972, I also know, that Micropterigidae...
01 September 2015 1,859 4 View
Maybe there are introduced individuals from the Mediteranean or abandoned idividuals fom pet owners, but will they stay alive and reproduce in nature?
26 August 2015 7,375 9 View
