Old, discoloured, and damaged, but still hungry

Butterflies grow old too:

^{Olympus Stylus 1s, 300mm, ISO200, f5.6, 1/250s}

It is a bit hard to identify in this state, but I think it is a common blue (Polyommatus icarus), icarusblauwtje in Dutch.

I'm not sure if the discolouration is a sign of old age or if it is a normal variation, as I have seen a similarly coloured younger specimen around the same place some time ago:

^{Olympus Stylus 1s, 300mm, ISO200, f5.6, 1/320s}

They are usually more colourful from the side, as you can see here (the top one is a male, the bottom one female):

^{Olympus XZ-1, 112mm, ISO100, f8, 1/160s}

I could just have misidentified them, of course.

Thanks for watching!