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Common blue

Polyommatus icarus


Female common blue’s are very variable in terms of coloration. They show a continuous variation from blue to brown above.


Farmland. In an old quarry.


Photo taken by Arne Røysland.

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DanielePralong 3 weeks ago

I agree 100% with female Polyommatus icarus Arne. This species also has spurs.

arne.roysland 3 weeks ago

Then Daniele, I hope it is a female Polyommatus icarus because the other species don't have dark spots on the blue like picture 1. The female in Norway can be both brownish or blueish. https://www.artsdatabanken.no/Pages/1447...

DanielePralong 3 weeks ago

Your welcome Arne. Many butterflies species in the families Pieridae, Hesperiidae, Papilionidae and Lycaenidae have spurs on their front leg tibias.

arne.roysland 3 weeks ago

Thank you for the information. I will look. The second picture show a spur on the front leg. It was mention especially on the Norwegian sites.

DanielePralong 3 weeks ago

Hi Arne! This butterfly lacks the silver-blue spots on its hindwings that gives the species its name. It also has a dark basal point on the forewing that is absent in Plebejus and more typical of some other blues such as Polyommatus. If it were male the upper side would show a black border, whereas the female would be show brown with sometimes orange marks on the hindwing.
See some specimen of Plebejus argus here: http://www.schmetterling-raupe.de/art/ar...

Spotted by


Lat: 59.07, Long: 9.66

Spotted on Aug 19, 2019
Submitted on Aug 21, 2019

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