I have tried and tried, without success to identify this sweet butterfly. While it looks very much like the endangered Karner Blue, the habitat is all wrong. These little guys were found flitting through the air in the Eastern Sierras in mid-July at about 7,000' elevation.
They were such fun to watch but difficult to photograph because they were seldom still for more than a millisecond! At rest, they blended in with the earth at my feet. No sooner would I get the camera focused, they would take off again, just a flash of blue fluttering out of range.