Скачать или смотреть Red Damselfly - Pyrrhosoma nymphula - Vogvængjur - Dömlur - Vatnaflugur

Large Red Damselfly - Pyrrhosoma nymphula - Odonata - Glermey - Meyjarflugur - Vogvængjur - Dömlur - Vatnaskordýr - Karlfluga - Male damselfly - Females occur in three colour forms, but all have yellow bands around the abdominal segments. Both have black legs and wing spots. The Large Red normally has a two year life cycle. Males will be very common resting on bankside vegetation, are generally territorial and are aggressive towards other males. Oviposition will occur in tandem where the male will guard the female. We can recognise damselflies from the true dragonflies by the fact that they hold their wings together behind their backs and have a very thin body.

The form typica has more black on its abdominal segments than the form 'fulvipes', particularly segment 6. Immatures have lighter eyes and have yellow stripes on the thorax, not red. They can easily be confused with small red damselflies, but the latter has orange legs, while the large red damselfly has black legs. In Greece and Albania a closely related species occurs, the Greek red damsel (Pyrrhosoma elisabethae). They look very much the same, the females only having a slightly different pronotum with deep folds in the hind margin. The males differ in their lower appendages, which are longer than the upper ones, while the black hook on the lower appendages is half as long as in the large red damselfly. See more: https://en.wikipedia.org/wiki/Large_r...

The large red damselfly is a medium-sized damselfly which lives around the edge of ponds, lakes, ditches and canals and can also be found away from breeding sites in grassland and woodland. The earliest damselfly to emerge in the UK, it is on the wing from the end of April through to August. It is a regular visitor to gardens. See more: http://www.wildlifetrusts.org/species...

This variability is further confused by the fact that newly emerged individuals are quite yellow but this species should be relatively straightforward to identify because few others will be seen before mid May. Females are slightly thicker-set than males but it is the males that emerge slightly earlier. The large red damselfly can be found throughout Britain and in just about any wetland habitat including garden ponds. They are often encountered well away from water; when they first emerge they tend to find thick vegetation in which to harden up their wings before flying back to the ponds to find a mate. See more: https://www.saga.co.uk/magazine/home-...

Meyjarflugur (einnig nefndar glermeyjar eða dömlur) (fræðiheiti: Zygoptera) eru annar af undirættbálkum vogvængja, hinn eru drekaflugur (Anisoptera). Meyjarflugur gangast undir ófullkomna myndbreytingu. : https://is.wikipedia.org/wiki/Meyjarf...

Vogvængjur (fræðiheiti: Odonata) er ættbálkur skordýra sem deilast í tvo undirættbálka, drekaflugur (Anisoptera) og meyjarflugur (Zygoptera), einnig nefndar glermeyjar. Þær eru mjög stór skordýr, sem einkennast af stórum augum og að hafa tvö pör af löngum glærum vængjum með þéttriðnu æðaneti. Í hvíld halda drekaflugur vængjunum láréttum út frá bolnum en glermeyjar leggja þá saman lárétt aftur bolinn. Annar munur á drekaflugum og glermeyjum er sá að á drekaflugum er munur á fram- og afturvængjum en þeir eru nánast eins á glermeyjum. Vogvængjur eru ásamt dægurflugum annar tveggja eftirlifandi ættbálka í Palaeoptera innflokknum. : https://is.wikipedia.org/wiki/Vogv%C3...

Robyn's Pond Egg Identification Page. See more: http://www.fishpondinfo.com/egg.htm