|Copyright: Peter van Zoest (PeterZ)
|Date Taken: 2015-05-11|
|Exposure: f/5.6, 1/500 seconds|
|Details: Tripod: Yes|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2016-11-27 11:25|
|[Note Guidelines] Photographer's Note|
|The Beautiful Demoiselle (Calopteryx virgo) is a European damselfly. It is often found along fast-flowing waters where it is most at home.|
The Beautiful Demoiselle lives mainly near small to medium sized streams and creeks. They prefer a relatively low water temperature and a moderate to fast flow. The water must not be nutrient rich (eutrophic). In the northern part of their range, such as in Norway and Finland, it is also found near medium-sized rivers or even larger streams. The waters are usually in the immediate vicinity of forests.
The distribution of the Beautiful Demoiselle covers all of Europe with the exception of the southwestern Iberian Peninsula, the Balearic Islands and Iceland. In the north it extends to the Arctic polar sea, and thus much further north than that of the banded demoiselle. On the North African Mediterranean coast, its southern populations in Morocco and Algeria can be found. The northern boundary in Asia following the 13-°C July isotherm, it is therefore not in the areas where the average temperature in summer below 13 °C falls, otherwise they are met with in temperate and cool regions in the entire continent with the exception of deserts and the mountains of. The eastern subspecies of C. v. japonica found on the Japanese islands is under debate as to whether it is a separate species. The Beautiful Demoiselle is mostly found in lowland locations. Regular findings come from areas up to a maximum height of 980 m above sea level. Occasionally they may be found up to 1,200 meters in altitude, such as in the Alps.
The male usually has much more extensive pigmentation on the wings than other Calopteryx species in its range: in the south east of its range (the Balkans and Turkey) the wings are entirely metallic blue while in other areas, there are clear areas at the base and tip of the wing. Immature insects often have much paler, browner wings. They have metallic blue-green bodies and blue-green eyes.
The female has dark brown iridescent wings, a white patch near the tip of the wings (called a pseudopterostigma) and a metallic green body with a bronze tip of the abdomen.
Eggs and larvae
Females lay up to 300 eggs at a time on emergent or floating plants, often on water-crowfoot. Like the Banded Demoiselle, they often submerge to do so. The eggs hatch after around 14 days. Again, like the banded demoiselle, the larva is stick-like with long legs and develops over a period of two years in submerged vegetation, plant debris or roots. They usually overwinter in mud or slime.
The larvae of the Beautiful Demoiselle develop over 10 to 12 stages, each of which takes place between a molt. The body length is variable and highly dependent on environmental conditions. The final stage (F-0-stage) larvae are 3.5 to 4.6 millimeters and weigh about 4 milligrams, slightly below the Banded demoiselle. Apart from the larvae of the demoiselles are difficult to distinguish from each other, the apparent differences lie mainly in the bristles and the severity of the tracheal gills on their abdomen. Compared to other damselflies demoiselles larvae fall immediately on the other hand, due to their much shorter mean gill lamella.
The body of the larvae shows only a relatively small adjustment to the fast-flowing waters of their habitat. The body is not flattened but very slim and turning around, the legs are long and have its end with strong claws, with which it can be stated in the vegetation. Because they reside within the water body, but mainly in the quieter areas, the danger of being swept with the flow, is relatively low. If this happens, they clearly its long body and legs stretched as far as possible to get in touch with the vegetation or the substrate to come.
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Beautiful coloured Damselfly, Peter. Well captured with good details and perfect BG. Like eye-level POV.
Thanks for sharing,
super mooie kleuren ,en super scherp
mooie achtergrond ,deze blijven niet makkelijk zitten voor de foto
bedankt gr lou
- [2016-11-27 15:10]
Superb.Sharp image with good BG. I love it.
- Lavan (50)
- [2016-11-28 2:40]
Nice Macro click with lot of details of the small insect. Nice colors.
This Demoiselle deserves its name, Peter; it's really beautiful.
A fantastic and flawless macro taken with the camera on tripod.
The brown BG and diagonal orientation make it an extremely attractive composition.
- [2016-11-28 15:28]
Hi Peter,lovely metallic blue very well caught and always difficult...excellent capture of this damselfly very very common in my village,i like the perspective and the good sharpness too. Have a nice day and thanks,Luciano
Une superbe photo, avec de magnifiques détails et de bonnes couleurs.