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Glaucopsyche alexis
Usually April and May although reported in June and even July. The underside is a pale silvery blue with small black spots. Basal area is extensively blue or greenish. Male upperside black boarders broaden towards the forewing apex. Female brown with basal blue. Underside forewing has a curving row of spots that uniquely curves towards the anal angle. These spots are also large.
It is distributed across Europe except UK; central and northern Scandinavia, but also mountains of Algeria and NE Tunisia.
According to Croatian law strictly protected species.
Thank you all for appreciating my photos ;) and for helping me with determination!
You are right, don't worry about the French google translate is doing an amazing job!
You're welcome injica. Small blues can be tricky! I used a key to get to to my suggestion. The main criteria were the single rows of dots on the ventral view of both wings, the absence of orange on the dots on the hind wing, and the larger spots on the forewing compared to the hind wing. They're also know to fly in April. See what you think. Here's part of the key (I'm afraid it's only available in French but it'll give you an idea): http://www.lepido.ch/clededetermination/...
Thank you arlanda ;) And tnx Daniele, it is less geometrical your sugg but then spots on the out part of wings don't match! Will decide, thank you very much for correcting!