Libellula rossa (Red dragonfly) - a photo on Flickriver

The Scarlet Dragonfly (Crocothemis erythraea) is the European member of the dragonfly genus Crocothemis.The adult male Scarlet Dragonfly has a bright red, widened abdomen, and small amber patches at the bases of the hindwings.
The Scarlet Dragonfly is a common species in southern Europe and north Africa.
The Scarlet Dragonfly is a very rare vagrant in Britain.
Libellula is a genus of dragonflies, commonly called skimmers, in the family Libellulidae, distributed throughout the temperate zone of the Northern Hemisphere. Most species are found in the United States, where they are the best-known large dragonflies, often seen flying over freshwater ponds in summer. Many have showy wing patterns
The dragonfly is a flying insect that can hover in mid-air. It eats other insects, catching them while it is flying. There are many different species of dragonflies, and most of them are found near water. The earliest dragonflies appeared over 300 million years ago.
Like all insects, the dragonfly has a three-part body: a head, a thorax, and a long, thin, segmented abdomen. The dragonfly has 2 large compound eyes that take up most of the head. On the short thorax there are three pairs of jointed legs and two pairs of long, delicate, membranous wings. The dragonfly breathes through spiracles (tiny holes in the abdomen).
Life cycle: A dragonfly undergoes incomplete metamorphosis. The larva hatches from an egg which is laid in water, in plants near water, or even underwater. As this aquatic (living in the water) larva (called a nymph) grows, it molts (loses its old skin) many times.

Le libellule sono un genere di insetti appartenente all'ordine degli Odonati. Il nome Libellula deriva dal latino "libra", ovvero bilancia, così detta perché nel volo tiene le ali orizzontali.Hanno un capo molto voluminoso, gli occhi composti e antenne relativamente brevi; le due paia di ali, quasi uguali, sono allungate e membranose, talvolta vivacemente colorate, e consentono un volo rapido e sicuro. L'addome è relativamente lungo e sottile, composto da undici segmenti. Le zampe sono inserite anteriormente sul corpo e vengono usate raramente per camminare. Hanno un apparato boccale masticatore molto caratteristico: il labbro inferiore termina con delle piccole pinze con cui la libellula afferra la preda. Si nutrono di insetti che afferrano e divorano in volo; hanno quindi un volo silenzioso oltre che veloce, che fa di loro terribili predatori sia in aria che in acqua.La riproduzione delle libellule avviene in ambiente acquatico. Esse sono ovipare e dopo avere deposto le uova dalla forma allungata le lasciano semplicemente cadere nell'acqua oppure le fissano ai fusti di piante acquatiche. Come tutti gli odonati, le libellule vanno incontro a metamorfosi incompleta. In tutte le specie, dalle uova escono le neanidi che maturano nell'acqua, nutrendosi di diverse forme di vita acquatica; quelle di alcune delle specie più grosse possono addirittura attaccare piccoli pesci. Le neanidi delle libellule hanno una mandibola speciale, estensibile e chiamata "maschera", con la quale colpiscono la preda. La lunghezza del periodo ninfale varia, a seconda della specie, da uno a tre o più anni, durante i quali l'animale va incontro alla muta almeno dieci volte. Quando le ninfe sono completamente mature lasciano l'ambiente acquatico e vanno incontro a metamorfosi, trasformandosi nella forma adulta.

www.flickr.com/photos/luigistrano/4757046490/

Taken in: Italia / Veneto / San Bonifacio (show map)

Taken on: June 28, 2010

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Insetti

Crocothemis erythraea

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Camera: Panasonic DMC-FZ38, f/4.4, 1/250 sec, 86.4mm, ISO 80 (more info) (hide info)

Camera:	Panasonic DMC-FZ38
Aperture:	f/4.4
Exposure Time:	0.004 sec (1/250)
Focal Length:	86.4mm
ISO:	80
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Program AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
Software:	picnik.com
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