Quite possibly - although I was putting the suggestion of Brown Argus down to 2 things:
1. There are more spots on the underside of a Common Blue - so more of an aberration required to remove them
2. The Brown Argus does have a bluish sheen (not scales) on both upperside and underside. Overly-sharpening a digital image can cause these areas to actually turn blue!
Either way - it's an ab!
Cheers,
- Pete