First Blue Butterfly

This is a real sign of summer here, the Alpine pastures near our home, have so many different jewels glistening in the grass and on the first flowers. The only problem is that they don't stay still for long! This is a tiny Alpine Argus or Common Blue, I think. Finally managed to upload 2 more butterflies, the brown is a fritilary of some sort, but the black and white - any ideas?

Thank you for all the concern for my friend in Nepal, still no news but another friend assured me that Pertemba has retired from high altitude expeditions and that his house in Kathmandu is very solid.