CALOPTERYX VIRGO PDF

European regional assessment: Least Concern (LC) EU 27 regional assessment: Least Concern (LC) Calopteryx virgo is a common and widespread species in. Confined to southern half of Ireland. Adults fly during June and July. This and the Banded Demoiselle are the largest Irish damselfly species. The Beautiful. Calopteryx virgo virgo Trusted • Calopteryx virgo Trusted more taxon associations Calopteryx virgo britannica is a subspecies of the Beautiful Demoiselle.

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Permission Reusing this file. This seat is waiting at the same time the center of the district they do their gaze primarily on the aquatic center and will show a behavior that is referred to as “wings lapping” and in which the wings beat quickly down and slowly lifted. Skip to main content. In return, the male is on the wings of the female and begins copulation, which can last between 40 seconds and 5 minutes, the animals themselves in the “mating wheel” can rely on the vegetation.

Vorgo they reside within the water body, but mainly in the quieter areas, the danger of being swept with the flow, is relatively low. The thin-skinned, tracheogenic body attachments for oxygen uptaking from the water, under normal circumstances are still less sensitive to fluctuations in the oxygen supply. In addition, the larvae no holding facilities are against the current, and the algae and dirt particles settle to the gill lamellae are important for respiration.

He may virg a calopreryx surface is not completely from the plants of the marginal vegetation to be overgrown, this is done mainly by fast-growing plants such as Meadowsweet Filipendula ulmariathe stinging nettle Urtica dioica or Himalayan balsam Impatiens glandulifera.

The veralgten plants are not accepted by the females as oviposition sites. The larvae need the stems and virrgo, especially in areas with stronger currents to hold on.

They chase passing insects, calopgeryx returning to the same perch. Similar calopteryyx The Banded Demoiselle C. This species prefers unlike the banded demoiselle, mainly the cooler and shadier areas of the water. Retrieved from ” https: This aging period usually lasts about 10 days, after which they return to the waters.

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You are here Beautiful Demoiselle. Mating takes place in a way that for the genus Calopteryx and is typical of an eye-catching advertising behavior precedes. The larvae live in the streams mentioned before and are mainly dependent on the water plants.

Males who do not occupy spots can keep themselves in the vegetation on the shore and try to mate with fly to virbo or to fill vacant spots. Like the banded demoisellethey often submerge to do so.

Beautiful demoiselle

The size of the spots and their distance apart is the density of the population dependent as well as the occurrences of the water and may be between several meters and a few decimetres. The inefficiency of oxygen uptake is balanced by the choice of habitat, since both increased flow and cooler water absorption capacity. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. The males who recognize the females to the reflections of the moving wings, fly towards it, once they have crossed the border vrgo.

By using this site, you agree to the Terms of Use and Privacy Policy. This page was last edited on 21 January cakopteryx, at The body of the larvae shows only a relatively small adjustment to the fast-flowing waters of their habitat.

During the nesting above the water surface while the female is the male defended against other males. They are defending their seats against other dragonfly larvae, especially those of its own kind.

On the other hand, the eutrophication of water by agriculture and by household wastewater causes an important factor in the decline dar. A quick search of Google Images or Wikimedia tends to find related American species such as calkpteryx Ebony Jewelwing Calopteryx maculataalso known as the Black-winged Damselflybut such species do not occur in Europe and have never been known to fly the Atlantic.

File:Beautiful Demoiselle Calopteryx virgo male female.jpg

Calopteryx virgo can reach a body length of 49—54 millimetres 1. Unlike the adults of the banded demoiselle you meet those of the beautiful demoiselle but also in forest clearings, but very rarely on the banks of larger ponds. The adult animals live only one season, it was a lifetime determined from about 40 to 50 days.

It bulges caloppteryx the upper part of the egg slightly, while the lower part deforms concave. It is often found among fast-flowing waters. Beautiful Demoiselle Calopteryx virgo male female. In this species the wings of the mature male are very dark blue-black and those of the female are iridescent brown-green.

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The habitat that the adults occupy, corresponds to the nearby larval habitat. The substrate of the river has only a very minor importance, because the larvae reside mainly in the vegetation.

You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Thus they will be an indication of value in the saprobic assigned of 1. At night the animals as well as sit in the early morning sun-drenched coves in the vegetation at these sites, they also spend the night.

The first adults of dragonflies emerge, depending on the weather, at the end of April to the end of September. The females fly over the water, always in search of suitable nesting places and fly it through the territories of males. The males sit in their areas mostly in exposed calopteryyx in the vegetation, which extends over the water, sometimes on vegetation or rocks cushions amid the waters.

They can be found on submerged plants such as waterweed Elodea sp.

Calopteryx virgo

Beautiful Demoiselle Immature male showing brown wings but no white wing spot. The newly hatched dragonflies spend after leaving the larval shell exuvia is the first time until full coloration in the vegetation surrounding the water body.

The eggs, in which the embryos develop, are on average about 1. Especially when only a few males are present, the vurgo defense is very aggressive, with a higher number of competing male aggression but decreases significantly.

If you think this file should be featured on Wikimedia Commons as well, feel free to nominate it. The final stage Fstage larvae are 3. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.