A worldwide community photographing and learning about wildlife
Polyommatus icarus
Male uppersides are an iridescent lilac blue with a thin black border. Females are brown above with a row of red spots along the edges and usually some blue at the base of the wings; the upperside may be mostly blue, especially in Ireland and Scotland, 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.
Widespread over much of the Palaearctic and recently introduced in eastern Canada.
Related spotting: http://www.projectnoah.org/spottings/225... and http://www.projectnoah.org/spottings/284...
Not even close: " It is found in North America from Alaska and Canada south of the tundra through most of the United States except the Texas coast, southern plain and peninsular Florida; south in the mountains to Colombia."http://en.wikipedia.org/wiki/Celastrina_ladon ;) this one is an european blue
Looks vaguely similar to our Spring Azure (Celastrina ladon), but I have no idea what species live in Croatia!