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You're welcome! Somehow one of my links below got truncated. Here it is again:
I would suggest to leave the images of your choice here as part of this current spotting so that this comment exchange is preserved for educational purposes.
Hi Zlatan! Argynnis pandora has a distinctive grey-green sheen on top of the orange on the upperside, which can't be seen here. I also think that you're too far north with respect to distribution. In very nearby Switzerland for instance this species is only found in a few discreet sites in Valais. For more images, criteria and information on A. pandora: http://www.eurobutterflies.com/sp/pandor....... You may want to create two additional separate spottings for these images. If you look carefully at the uppersides on images 1+2 and 3+4 you'll see differences. The individual in 3+4 shows two rows of relatively round dark spots along the edges, whereas 1+2 has a row of round spots and a row of chevrons. Based on this criteria, plus the absence of scent scales and the green sheen on the underside, I think that 3+4 is a female Argynnis paphia. 1+2, and 5, are likely A. aglaja, addipe or niobe. There a few criteria to distinguish them from the upperside, but the best criteria concern the underside. The following site offers a complete key to butterflies for Switzerland; it should apply to your spotting location: https://lepido.ch. I hope this helps.
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...