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  1. Galleries
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  3. Macro and Flora
  4. » Ephemera danica with exuvia

 
Ephemera danica with exuvia...

Macro e close up

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Ephemera danica with exuvia sent on October 11, 2014 (13:59) by Raffaella Coreggioli. 16 comments, 841 views. [retina]

, 1/3 f/16.0, ISO 100, tripod.

Nome scientifico: Ephemera danica (MULLER, 1764) Dimensioni: apertura alare mediamente sui 12 mm. Descrizione della specie: L'ordine degli Efemerotteri o Effimere comprende insetti arcaici, conosciuti già dai tempi antichi per la brevità della loro vita allo stato di adulti, da cui il nome di Ephemeroptera (dal greco ephemeros=che vive un giorno). Gli adulti sono terrestri, ma le forme larvali e ninfali, la cui vita può durare fini a tre anni, sono acquatiche L'insetto adulto è caratterizzato da brevi antenne filiformi, apparato boccale atrofizzato, ali posteriori ridotte e un lungo addome terminante con due o tre filamenti composti da numerosi articoli. A riposo, le ali sono mantenute in posizione verticale cioè non possono essere ripiegate sul corpo. Le larve e ninfe sono dotate di un apparato boccale ben sviluppato, di tipo masticatore, frequentano le acque dolci correnti e stagnanti. Lo stato adulto è preceduto da uno stadio di "subimmagine" alato.Gli adulti non vivono più di qualche ora, il tempo di compiere il volo nuziale, preceduto da danze aeree per i maschi e seguito immediatamente dalla deposizione della femmina, che lascia cadere le uova sulla superficie dell'acqua. L'accoppiamento avviene in aria, anche se gli insetti accoppiati spesso cadono sul terreno o in acqua. La femmina muore subito dopo la deposizione, ma è comunque sopravvissuta più a lungo del maschio. Nel corso della loro vita gli adulti non assorbono alcun cibo e il loro apparato digerente è trasformato in un organo aerostatico. Le larve e le ninfe, invece, si nutrono soprattutto di particelle vegetali, alghe microscopiche o detrito. Questi insetti sono inoffensivi e offrono un abbondante nutrimento ai pesci e ad altri animali acquatici. Infatti la comparsa delle Effimere è stagionale e pesci ed uccelli sono in grado di compiere previsioni sulla loro comparsa e di prepararsi ad un lauto banchetto offerto loro da questi insetti. Distribuzione e habitat: frequentano le acque dolci correnti e stagnanti. In Europa sono presenti 14 famiglie (su 19 distribuite in tutto il globo, eccetto che in Artide e in Antartide) suddivise in circa 200 specie, di cui 80 vivono in Italia. Periodo di attività: Negli Stati Uniti gli Ephemeroptera prendono il nome di Mayfly, ovvero letteralmente "mosche di maggio" (nonostante sfarfallino anche in altri periodi).



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avatarsenior
sent on October 11, 2014 (20:32) | This comment has been automatically translated (show/hide original)

Shooting very beautiful and also add elegant, super sharpness as well as the colors and what I really, really like 'that ray of light that strikes the center of the abdomen that makes it stand out even more' on the subject.
Very, very good compliments !!.

piero

avatarsenior
sent on October 11, 2014 (20:47) | This comment has been automatically translated (show/hide original)

Fantastic !!! A situation documented with great taste and technique,
compliments gandy

avatarsenior
sent on October 11, 2014 (20:48) | This comment has been automatically translated (show/hide original)

What spettacolowow! You captured a great moment in an impeccable way with a beautiful composition and impressive detail. Perfect light management.
Compliments.
Hello

avatarsupporter
sent on October 11, 2014 (20:50) | This comment has been automatically translated (show/hide original)

How much skill in making detailed as this. Congratulations on having been able to make delicate frame to equal the delicacy of the subject.

avatarsupporter
sent on October 11, 2014 (20:59) | This comment has been automatically translated (show/hide original)

Shooting very beautiful and also add elegant, super sharpness as well as the colors and what I really, really like 'that ray of light that strikes the center of the abdomen that makes it stand out even more' on the subject.
Very, very good compliments !!.
piero

Thanks Piero, these subjects are very beautiful and elegant, it is a pleasure to photograph them, too bad they are "ephemeral" and live only a few hours, you have to be lucky and find the place and the right time to take them back, here we were at the mouth of the Sile in the period Soy, the background is in fact given by the latter in the ripening stage :)

Fantastic !!! A situation documented with great taste and technique,
compliments gandy

Thanks Gandy, happy your apprethe appreciation :)

What spettacoloEeeek !!! You captured a great moment in an impeccable way with a beautiful composition and impressive detail. Perfect light management.
Compliments.
Hello

Have you seen ... Damiano? We talked yesterday of the Ephemeral:-P I hope you too will one day have the pleasure to photograph them, thank you very much for your kind visit and nice comment left :)

How much skill in making detailed as this. Congratulations on having been able to make delicate frame to equal the delicacy of the subject.

Thanks Pier, too kind ^ _ ^

Greetings to all and good evening
Raffaella

avatarsenior
sent on October 11, 2014 (22:03) | This comment has been automatically translated (show/hide original)

Straperfetta in everything ... really compliments ... great shot .... wow wow wow wow wow wow wow wow wow wow wow wow wow wow wow wow!

avatarjunior
sent on October 11, 2014 (22:53) | This comment has been automatically translated (show/hide original)

A photo I would say delicate as the subject.
The perch is very apt and adds elegance to the composition.
Compliments.
Hello

avatarsenior
sent on October 12, 2014 (0:18) | This comment has been automatically translated (show/hide original)

A beautiful picture from both aesthetic and documentary, the written description of the species completes the verything.

Hello

avatarsupporter
sent on October 12, 2014 (13:36) | This comment has been automatically translated (show/hide original)

Thank you very much for your visit and nice comments left :)
Gaetano
Danluc
Andy
a warm greeting and good Sunday to you all:-)
Raffaella

avatarsupporter
sent on October 12, 2014 (21:21) | This comment has been automatically translated (show/hide original)

Magic moment again in a perfect way, a pleasure for my eyes accustomed to my shots of a very different level.

avatarsupporter
sent on October 13, 2014 (14:40) | This comment has been automatically translated (show/hide original)

Thanks Manrico, very kind :)
A greeting
Raffaella

avatarsenior
sent on July 20, 2017 (18:24) | This comment has been automatically translated (show/hide original)

Of an exaggerated beauty !! :-or

avatarsupporter
sent on July 21, 2017 (13:54) | This comment has been automatically translated (show/hide original)

Happy with the appreciation Pack :-)
A greeting
Raffaella

avatarsenior
sent on July 21, 2017 (16:42) | This comment has been automatically translated (show/hide original)

Great shot and document .. !!! :-or

avatarsupporter
sent on July 21, 2017 (21:33) | This comment has been automatically translated (show/hide original)

Thank you Franco :-)

avatarsenior
sent on January 03, 2018 (23:37) | This comment has been automatically translated (show/hide original)

beautiful and informative


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