Bird Azure Maiden
| Bird Azure Maiden | ||||||||||||
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Vogel-Azurjungfern from East Lower Saxony, |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Coenagrion ornatum | ||||||||||||
| ( Selys , 1850) |
The blue damsel ( Coenagrion ornatum ) is a species of dragonfly from the family of the slender dragonflies (Coenagrionidae). These belong to the dragonflies (Zygoptera).
features
The Vogel-Azurjungfer has a body length of up to 31 millimeters and a wingspan of up to 48 millimeters. Like all azure virgins , it has a high-contrast black and blue color, but looks a bit more robust than many other species in both sexes and especially with the females. The name is given by the black drawing on the second abdomen segment of the male, which is sometimes supposed to be reminiscent of a bird with upright wings. The females are darker than the males because the black part of their markings is more pronounced. The basic blue color often turns green in them.
The Bat's Azure Damselfly ( Coenagrion pulchellum ) has a very similar pattern. The two species can be distinguished by the antehumeral stripes , which are continuous in the bird-azure virgin, but open in the bat-azure virgin. Otherwise, the males of Coenagrion ornatum are very similar to the Helmet-Azure Damsel ( Coenagrion mercuriale ), but are more powerfully built than them.
distribution
In Central Europe, Coenagrion ornatum belongs to the eastern Mediterranean refuge fauna with only a few disjoint occurrences in warm summer regions. In Austria and Switzerland , the species is considered to be extinct. In Germany, there are currently only confirmed occurrences from Baden-Württemberg , Bavaria , East Westphalia (Minden-Lübbecke district) and the Palatinate . In northern Germany in the Oldenburg district it is currently (2012) reaching its northern limit of distribution. The Red List of Germany lists them as "critically endangered" (category 1). In Eastern and Southeastern Europe ( Belarus , Ukraine , Balkan Peninsula , Northern Greece and Turkey ) the species is widespread, but apparently nowhere common.
Habitat and way of life
The bird azure virgin prefers to live in small, chalky, sunny and submerged rivers with vegetation ( e.g. meadow ditches), the banks of which are overgrown with berle ( Berula erecta ).
The flight time lasts from early May to mid-August, in Germany only from late May to early August.
literature
- Heiko Bellmann: The cosmos dragonfly guide . Franckh-Kosmos, Stuttgart 2007, ISBN 978-3-440-10616-7
- Gerhard Jurzitza: The cosmos dragonfly guide . Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08402-7
- Klaas-Douwe B Dijkstra: Field Guide to the Dragonflies of Britain and Europe . British Wildlife Publishing, Gilingham 2006, ISBN 0-9531399-4-8
- Klaus Sternberg: Coenagrion ornatum (Sélys, 1850). In: Sternberg / Buchwald (ed.): Die Libellen Baden-Württemberg , Volume 1. Ulmer, Stuttgart 1999, ISBN 3-8001-3508-6
Web links
- Images of Coenagrion ornatum
- Coenagrion ornatum at Fauna Europaea
Individual evidence
- ↑ http://www.vegetationskunde.uni-oldenburg.de/57044.html ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
