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  1. Galleries
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  3. Macro and Flora
  4. » Colias crocea

 
Colias crocea...

Pieridae2

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Colias crocea sent on April 28, 2015 (17:51) by Raffaella Coreggioli. 19 comments, 1296 views. [retina]

, 1/5 f/16.0, ISO 100, tripod. Specie: Colias crocea

Colias crocea (Fourcroy, Geoffroy 1785) Dimensioni Lunghezza ala anteriore mm. 23-27 Apertura alare: 46 - 54 mm Descrizione della specie: Queste farfalle hanno come colore dominante il giallo, arricchito da sfumature aranciate, più tenue per la femmina, più intense per il maschio. Si osserva ancora, nel maschio, un bordo nero nella parte terminale delle ali anteriori che continua anche nelle posteriori. Nella femmina al posto di questo bordo nero vi è una serie di piccole macchie scure disposte in fila in maniera crescente dal basso verso l'alto. In entrambi gli esemplari presentano un margine intero e convesso con due venature anali nelle ali posteriori. Si può confondere con C. alfacariensis e C. hyale, che però hanno meno nero nel bordo esterno delle psap. La femmina può essere della forma helice Hubner, con colore giallastro chiaro sulle ps anziché arancio. La parte inferiore delle ali anteriori ha macchie postdiscali scure ed aree discali e basali giallastre, mentre, sempre inferiormente, le ali posteriori hanno colore di fondo giallo-citrino con una macchia discoidale bianca contornata di rossiccio ed una serie di punti scuri nella regione postdiscale. Possono dare origine a ibridi nei luoghi dove C. erate è presente. Dimorfismo sessuale: la parte superiore presenta l'apice nero delle ali anteriori delle femmine chiazzato di giallo, mentre nei maschi l'apice è nero uniforme. Le femmine nel 5% dei casi assumono una colorazione di fondo biancastra (forma ?helice', gene legato al sesso). Maschio: colore arancio con ampia fascia submarginale nera attraversata da esili strie nervulari gialle. Sfumatura basale nerastra e macchia nera disco cellulare nelle anteriori. Posteriori ampiamente velate di nerastro dal quale emerge una macchia disco cellulare arancio vivo. Femmina: simile al maschio ma presenti alcuni spazi gialli nella fascia submarginale. Velatura nerastra delle posteriori più estesa. Nelle femmine è frequente la forma "helice" a fondo bianco giallognolo. Stadi giovanili: le uova vengono deposte sulla parte superiore delle foglie della pianta nutrice. Il bruco è colore verde scuro con una fascia subdorsale e una laterale di colore giallo affiancate da grosse macchie nere.. Sverna allo stadio di bruco. In primavera avviene la metamorfosi in crisalide, appuntita all'estremità cefalica. Piante nutrici del bruco: Fabaceae (Coronilla spp., Lotus spp., Vicia spp., Trifolium spp., Medicago spp., Melilotus spp.). Distribuzione e habitat: paleartica: diffusa in Europa centro-meridionale, Nordafrica ed Asia minore, è una specie migrante. Specie non minacciata. specie euricora e migratrice, si rinviene in ambienti aperti dal piano basale a quello montano e cacuminale fino a oltre 2000 metri s.l.m. Periodo di attività: sfarfallamento: da maggio a ottobre con più generazioni annuali. Migrante.



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avatarsupporter
sent on April 28, 2015 (18:07) | This comment has been automatically translated (show/hide original)

What brilliance! Very beautiful.
Marco.

avatarsupporter
sent on April 28, 2015 (18:14) | This comment has been automatically translated (show/hide original)

What brilliance! Very beautiful.
Marco.

Many thanks Mark! :-)
good evening
Raffaella

avatarsenior
sent on April 28, 2015 (19:04) | This comment has been automatically translated (show/hide original)

Superb! Among your best macro absolute, definition, roost, compo and background super, mega congratulations
Hello
Max

avatarsupporter
sent on April 28, 2015 (19:54) | This comment has been automatically translated (show/hide original)

Thanks Max, I'm happy for your appreciation, l think 'I found it in my lawn! !! : D
a warm greeting and good evening
Raffaella

avatarsupporter
sent on April 28, 2015 (20:41) | This comment has been automatically translated (show/hide original)

Wow what a treat for compo, colors and detail.

Greetings ale

avatarsenior
sent on April 28, 2015 (21:10) | This comment has been automatically translated (show/hide original)

A tender delicacy !!!
roost subject background,
made for one another.
Hello gandy

avatarsupporter
sent on April 28, 2015 (21:26) | This comment has been automatically translated (show/hide original)

Thanks Ale, very kind :)
Good evening
Raffaella

avatarsupporter
sent on April 28, 2015 (21:28) | This comment has been automatically translated (show/hide original)

I thank the wonderful comment Gandy :)
Greetings
Raffaella

avatarjunior
sent on April 28, 2015 (21:47) | This comment has been automatically translated (show/hide original)

Wonderful colors !!! super macro, congratulations.
Hello Luigi.

avatarsenior
sent on April 28, 2015 (23:46) | This comment has been automatically translated (show/hide original)

Beautiful picture, very delicate.
hello
Auspicious

avatarsenior
sent on April 29, 2015 (8:13) | This comment has been automatically translated (show/hide original)

Another amazing shot

avatarsenior
sent on April 29, 2015 (9:02) | This comment has been automatically translated (show/hide original)

Great looking click!

avatarsupporter
sent on April 29, 2015 (12:44) | This comment has been automatically translated (show/hide original)

Thank you
Luigi
Auspicious
Francesco
Hector
always a pleasure your visit :)
Good day to all!
Raffaella

avatarsenior
sent on April 29, 2015 (17:36) | This comment has been automatically translated (show/hide original)

Congratulations very beautiful, good detail and excellent light and color.

avatarsupporter
sent on April 29, 2015 (19:47) | This comment has been automatically translated (show/hide original)

Raffaella Brava, beautiful colors as the sharpness ;-)
Hello
Michele

avatarsenior
sent on April 29, 2015 (22:20) | This comment has been automatically translated (show/hide original)

Beautiful !!!!

avatarsupporter
sent on April 29, 2015 (23:34) | This comment has been automatically translated (show/hide original)

Thank you so much :)
Mirco
Michele
Phenomenon
Good evening
Raffaella

avatarsenior
sent on April 30, 2015 (20:57) | This comment has been automatically translated (show/hide original)

Beautiful colors of this Colias and background.
Excellent as always the detail.
Congratulations
Hello

avatarsupporter
sent on April 30, 2015 (21:33) | This comment has been automatically translated (show/hide original)

Thank you very much Damiano !!! :)
Hello to you soon!


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