Author 'Francis-Sisco' (Id 219738 ) : In the male, broad streaks androconiales come to expand some of the veins in the central of the front wing. These striations are absent in the female.
Here, it is a butterfly with a female (not visible in this photo)
Photo of the 11-8-2015 at 18:10.
Exifs : f :4 - 1/500 - iso 250.