Some more butterflies

I thought it was a Pale Grass Blue at first, but no.... The Bird's foot Trefoil, ミヤコグサ was a clear giveaway.

Emelina Grass Blue, シルビアシジミ 

This one, (female?) looks so smart, but it disappeared too fast.

Around the same area: Spotless Grass Yellow, ツマグロキチョウ

The yellow bufs are difficult to identify. I hope this id is right.

The black tip is barely visible, unless it flies

Difficult!