BLUE BUTTERFLY ON REIGATE HILL(2)

BLUE BUTTERFLY ON REIGATE HILL(2)

Observation - BLUE BUTTERFLY ON REIGATE HILL(2) - UK and Ireland. Description: this looked different from the other blue that I posted from Reigate Hill today. I don't know the type and didn't see its wings opened. Can anyone assist in ID please. Thanks.

this looked different from the other blue that I posted from Reigate Hill today. I don't know the type and didn't see its wings opened. Can anyone assist in ID please. Thanks.