Orthetrum albistylum

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Orthetrum albistylum sent on January 31, 2015 (12:49) by Raffaella Coreggioli. 12 comments, 832 views.

, 1/20 f/16.0, ISO 200, tripod.

Orthetrum albistylum (Sélys-Longchamps, 1848) Dimensioni: lunghezza: 45-50 mm, apertura alare 65-75 mm. Descrizione della specie: libellulide di colore bruno e giallo con addome, nel maschio maturo, ricoperto da pruinosità azzurra. Questa specie è inconfondibile: sia i maschi che le femmine presentano appendici terminali dorsalmente biancastre (le femmine anche il 10° segmento addominale) e l'addome dorsalmente celeste, in alcuni punti molto pallido. E' l'unico Orthetrum con pterostigma nero insieme a Orthetrum cancellatum. Si distingue da quest'ultimo per i cerchi bianchi (da qui il nome alla specie) e l'addome più sottile. L'addome è percorso longitudinalmente da due bande nere e, come detto, nel maschio, è ricoperto da pruinosità azzurra che tende a divenire più chiara in età avanzata mentre gli ultimi segmenti addominali sono neri con cerci bianchi. La femmina, oltre alle appendici anali, presenta anche l'ultimo segmento addominale bianco. Il torace, sui due lati, ha due bande chiare. Una banda chiara lo attraversa anche dorsalmente tra le ali. Vola dalla fine di maggio ad ottobre ed è più abbondante in luglio e agosto. Le larve si sviluppano sia nelle raccolte d'acqua ferma che in ambienti con lenta corrente, in lanche, cave, risorgive, canali e fiumi, specialmente se con ricca vegetazione, in aree di pianura o di bassa collina. È una delle specie più diffuse nelle risaie. Distribuzione e habitat: presente nel nord Italia in diversi ambienti con acqua sia corrente che stagnante. Molto comune nelle risaie. Periodo di attività: giugno-settembre. Fonte web. Insetti - linnea.it

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18 persons like it: Alessandro Moneta, Alpi05, Andy 66, Fiorenzo Fiorenza, Francesco Abbate, Gav, Jody85, Luke115, Max Chiodini, Michele Marini, Pakky, Paolo Zanetti, Pier Luigi Ferrari, Quellolà, Renato Urbano, Rinaldo Di Iorio, Stefania Saffioti, Vincenzo Sciumè

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Luke115

sent on January 31, 2015 (13:31) | This comment has been automatically translated (show/hide original)

beautiful

Gandy

sent on January 31, 2015 (23:54) | This comment has been automatically translated (show/hide original)

The refinement of detail is the best element of this photo already very nice to her,
compliments gandy

Raffaella Coreggioli

sent on February 01, 2015 (19:11) | This comment has been automatically translated (show/hide original)

Thank You
Luke
Gandy
Happy appreciation :)
Greetings
Raffaella

Francesco Abbate

sent on February 08, 2015 (16:36) | This comment has been automatically translated (show/hide original)

super! wow! ;-)
a greeting
francis:-)

Raffaella Coreggioli

sent on February 08, 2015 (20:02) | This comment has been automatically translated (show/hide original)

“ super! Eeeek !!!;-)
a greeting
francescoSorriso „

thanks a lot :) Francesco
a greeting
Raffaella

Alessandro Moneta

sent on February 08, 2015 (21:18) | This comment has been automatically translated (show/hide original)

Wonderful for light, color and detail.

Greetings ale

Raffaella Coreggioli

sent on February 09, 2015 (10:45) | This comment has been automatically translated (show/hide original)

Thanks for your kind visit Ale, happy to have appreciated :)
A greeting
Raffaella

Pigi47

sent on February 09, 2015 (18:21) | This comment has been automatically translated (show/hide original)

By opening the image in both HR has all the beauty of the subject.

Max Chiodini

sent on February 09, 2015 (18:43) | This comment has been automatically translated (show/hide original)

Perfect! Tap flash?
hello
Max

Raffaella Coreggioli

sent on February 09, 2015 (19:13) | This comment has been automatically translated (show/hide original)

“ By opening the image in both HR has all the beauty of the subject. „

Thanks Pier:-P

“ Perfect! Tap flash?
hello
Max „

No Max, I never use it, I was in partial shade, and when there is dew is really hard to contain the reflexes, nor I have no other but the detail is less incisive, thanks as always the welcome visit:-)
a warm greeting and good evening
Raffaella

Jody85

sent on February 11, 2015 (18:23) | This comment has been automatically translated (show/hide original)

beautiful shot and beautiful colors and detail compliments ....
Have a nice evening
Jody

Raffaella Coreggioli

sent on February 12, 2015 (11:17) | This comment has been automatically translated (show/hide original)

“ beautiful shot and beautiful colors and detail compliments ....
Have a nice evening
Jody „

Many thanks :)
a greeting
Raffaella

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