Harold photographed this Adonis Blue aberration at Winspit on 14/09/17.
This butterfly was at first easily mistaken for a Common Blue, but further investigation showed that there are several examples of Adonis Blues showing the row of black dots on the lower hindwing. The lack of black chequering on the wings white fringes, usually seen on Adonis Blues, appeared also to be missing on the other examples. There is a suggestion of faint black cross lines on this photo and so it was agreed that they were most probably worn away.
An interesting find Harold!