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Polyommatus icarus
Common blue, female. Butterfly of the Lycaenidae family. The wingspan is 28–36 mm. It is a very variable butterfly. Male uppersides are an iridescent lilac blue with a thin black border. Females are brown above with of red spots along the edges and usually some blue at the base of the wings; the upperside may be mostly blue but it always has red spots. Undersides have a greyish ground colour in the males and a more brownish in the females. Both sexes have a row of red spots along the edge of the hindwings and extending onto the forewings, though they are generally fainter there, particularly in the males, where they are sometimes missing altogether. There are about a dozen black-centered white spots on the hindwings, nine on the forewings. The female underside is very similar to A. cramera, but the top three of the underside hindwing post-discal spots that make a right-angle are in line and evenly spaced in icarus, but in cramera the second spot is closer to the first and displaced downward .
Spotted at a prairie close to the sea. Asturias
Camera Model: NIKON D500. Exposure Time: 1/160 sec.; f/20; ISO Speed Rating: 8000. Exposure Bias: 0 EV. Focal Length: 90.0 mm. No flash fired. DSC_3328.
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