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Green-underside Blue / Kozličev plavac ♂

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.

1 Species ID Suggestions

Green-underside Blue
Glaucopsyche alexis Glaucopsyche alexis

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injica 10 years ago

Thank you, it is a really beautiful butterfly ;)

Caleb Steindel
Caleb Steindel 10 years ago

just gorgeous!

injica 10 years ago

Nemaš bada, bitno da je ipak dobio pravo ime ;)

Jopy 10 years ago

e, sad kad si dodala druge slike, vidim da sam pogriješila, sorry! :D

injica 10 years ago

Thank you Bug Girl ;)

BugGirl 10 years ago

So pretty!

injica 10 years ago

Thank you all for appreciating my photos ;) and for helping me with determination!

KerryHawkins 10 years ago

Very pretty Injica

bayucca 10 years ago

Definitely Glaucopsyche alexis.

Ursula 10 years ago

Nice! Love the color and the series!! :)

injica 10 years ago

You are right, don't worry about the French google translate is doing an amazing job!

DanielePralong 10 years ago

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):

injica 10 years ago

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!

arlanda 10 years ago

very nice Blue!!

Jopy 10 years ago

That's my range, happy!!!

injica 10 years ago

Hvala, tu si ipak svoj na svome ;)

Spotted by


Spotted on Apr 26, 2013
Submitted on Apr 29, 2013

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