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Species account
Dværgvandnymfe
(Nehalennia speciosa)
Charpentier (1840)
Vandnymfer (Coenagrionidae)
SEDG
24795
Sedgling (gb)
Dvärgflickslända (se)
Synonyms: Pygmy Damselfly (gb)
Measurements:
To 22-26mm Ab 19-25mm Hw 11-16mm
Flight period:
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| SE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| EU | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Identification:
Similar species:
Life stages:
After mating the female lays the eggs alone; inserting them into stems just below the surface. They hatch after a few weeks, and the larvae develop during 1 or perhaps 2 years - this is not clearly known. The imago-transformation takes place near the water.
Distribution:
Central Europe around the Alps and NE Europe from Germany, Poland, the Baltic states, Belarus and Ukraine and very localized eastward through Russia to Kazakhstan and Japan. Also present Denmark, Sweden and Finland. In Denmark only at Fandens Hul, Teglstrup Hegn, in NE Sjælland.
Habitat:
Behavior:
Status:
VU(global)
NT(eu) CR(dk). The only breeding site in Denmark is under pressure from growth and eutrophication. In the 90'es there were thousands here, but now seeing 20 in the season is a good result. The species is expected to die out despite of efforts to retore the locality.
Comment:
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769
(21 photos)
2022-06-18 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ og ♀ Fandens Hul. Lifer. Different animals. The batch of useful photos from this day. It took a while to find them being restricted to a short stretch of waterside grasses around the open water. You're looking for a spreadwing-like type, small and with very conspicuous white wing marks (young individuals) and whitish thighs. Depending on the quality of your eyesight, you might have to stick your head well down into the vegetation to spot them! 1: Younger male 2: Younger female 3: Older male 4: Younger male 5: Older male 6: Younger male 7: Younger 8: Likely young female 9: Young female 10: Young female 11: Young female 12: Young female 13: Young male 14: Young female 15-17: Young female 18: Young female 19: Young female 20: Young male 21: Young male |
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2829
(4 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ og ♀ Fandens Hul. Mating wheel. Happy to find a mating pair (the only one this day). Both animals mature with maroon-colored top of the eyes and the female completely dark brownish colors; even the markings on the last segments are shadowed out. |
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2847
(2 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Mature. The wing marks are still pale but color is on its way. |
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2846
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Mature. A funny combination with pale wing marks on an otherwise old-looking body. |
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2845
(2 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Mature. An old female where all the paler parts only are showing as shadows of the young colors: the bar between the eyes, the broken shoulder stripe and the markings on top of S8-10. Beautiful! |
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2844
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. |
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2843
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ Fandens Hul. Mature. More mature than young with maroon eyes, but wing marks don't look fully colored. The markings on S8-10 are typical for the male. |
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2842
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ Fandens Hul. Mature. A well-mature male with maroon eyes and cobbery thorax and abdomen - and solidly pale brown wing marks. |
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2841
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ Fandens Hul. Semi-mature. Eyes and wing marks starting to darken. A male with extremely short wings only reaching midway on S5. |
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2840
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. Typical young female. |
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2839
(2 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. Another young female, but this one with less blue eyes showing that it's getting older...as if some are not..! |
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2837
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ Fandens Hul. Young. Classic - with somewhat long wing. |
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2836
(4 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. They are small and they stay low why it isn't easy to get down to their level, but here I managed to get a photo where the ovipositor shows well, leaving no doubt about the sex - in case someone should be questioning that the S8 mark and long wings can be used for this purpose. |
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2835
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. Sexed by the large triangle on S8. This one showing a rather short wing. |
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2838
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. Showing beautifully exactly why the damselflies have developed their eyes as they have. The pale bluish eye makes it a young and I think the straw colored underside of the abdomen always goes best with a female, and the thickening at the end must be the ovipositor bulging out. |
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2833
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ Fandens Hul. Mature. With maroon eyes, orange-brownish wing mark telling its a mature and the short wings and small S8-mark making it a male. |
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2832
(2 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. With the white wing marks very characteristic for the young animals of this species - and the blue eyes too - and the large triangular mark on S8 indicating the sex. And with long wings - compared to others. |
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2831
(1 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Young. With the white wing marks very characteristic for the young animals of this species - and the blue eyes too - and the large triangular mark on S8 indicating the sex. |
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2830
(2 photos)
2024-07-06 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ Fandens Hul. Young. With the white wing marks very characteristic for the young animals of this species - and the blue eyes too - and the small triangular mark on S8 indicating the sex. |
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2897
(1 photos)
2024-07-24 Teglstrup Hegn (nordsjælland), Denmark
Imago ♀ Fandens Hul. Mature. One of three females seen today; this one being the only one without a date. |
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2898
(1 photos)
2024-07-24 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ Fandens Hul. Mature. Four single males seen today plus a single female and two mating wheels tell that they are still active, though rapidly lacking toward to the end of the flying period for this year. |
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2899
(5 photos)
2024-07-24 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ og ♀ Fandens Hul. Mating wheel. One of two mating wheels found today. The female intermediate still with pale wing marks but darkened thorax. |
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2900
(1 photos)
2024-07-24 Teglstrup Hegn (nordsjælland), Denmark
Imago ♂ og ♀ Fandens Hul. Mating wheel. One of two mating wheels found today. The female being intermediate still with pale wing marks but dark thorax. |