RCE Foto

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Pieridae2

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*** sent on December 18, 2015 (18:00) by Raffaella Coreggioli. 13 comments, 910 views. [retina]

, 1/10 f/11.0, ISO 200, 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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avatarsenior
sent on December 18, 2015 (20:00) | This comment has been automatically translated (show/hide original)

Also good this, super detail and color to the top, complimeti
hello and good evening
Auspicious

avatarsupporter
sent on December 18, 2015 (20:04) | This comment has been automatically translated (show/hide original)

This is also excellent, super detail and color to the top, complimeti
hello and good evening
Fausto

Many thanks Fausto, good evening to you :-)
Raffaella

avatarsenior
sent on December 18, 2015 (20:21) | This comment has been automatically translated (show/hide original)

Congratulations to the extremely clean, light and detail to the top. Very good!!

avatarsenior
sent on December 19, 2015 (11:48) | This comment has been automatically translated (show/hide original)

So where do we start, perfect detail, perch beautiful, fantastic background, increasingly Queen of macro!
Best wishes
Max

avatarsupporter
sent on December 19, 2015 (13:46) | This comment has been automatically translated (show/hide original)

Pako, many thanks, very kind :-)
Max, always a great pleasure to receive your visits, are the most honorable nice comment: - | :-)
Best wishes and greetings parts
Raffaella

avatarsenior
sent on December 19, 2015 (18:27) | This comment has been automatically translated (show/hide original)

A real treat!
Refined representation.
Congratulations gandy

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

Light spectacular, as always excellent recovery. Wonderful.

avatarsenior
sent on December 20, 2015 (18:07) | This comment has been automatically translated (show/hide original)

Hello Raffaella
Snap spectacular colors, in detail, in the roost and ........ too beautiful.
Congratulations and many
Happy Holidays
Ermanno

avatarsupporter
sent on December 20, 2015 (21:34) | This comment has been automatically translated (show/hide original)

Gandy
Francis
Ermanno
I thank you for kind comments :-)
Many good wishes
Raffaella

avatarsupporter
sent on December 23, 2015 (20:48) | This comment has been automatically translated (show/hide original)

Splendid both elements: the butterfly is my favorite and his portrait is perfect, the plant is elegant and not common. Very good.
Raffaella, dearest wishes for a happy Christmas, and a beautiful coming year.
Hello.

avatarsupporter
sent on December 25, 2015 (18:25) | This comment has been automatically translated (show/hide original)

Splendid both elements: the butterfly is my favorite and his portrait is perfect, the plant is elegant and not common. Very good.
Raffaella, dearest wishes for a happy Christmas, and a beautiful coming year.
Hello.

Many thanks Giuseppe, always a pleasure to your visits, and your generous comments.
Best wishes to you too !!! :-P
Hello

avatarsenior
sent on December 26, 2015 (22:02) | This comment has been automatically translated (show/hide original)

I remain speechless
Hello
Nino

avatarsupporter
sent on December 27, 2015 (17:06) | This comment has been automatically translated (show/hide original)

hello Nino, thanks :-)
A greeting
Raffaella


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