P. agleoides lacks 2 of the 3 blue discal spots seen on the forewing.
Just below the upper end of the long blue costal streak is the costal part of the endcell spot.
In I. similis the spot is very variable, and the costal part can be small.
In checking more than a dozen I. vulgaris, this portion is always extended into a long thin streak.
All that is needed is a bit more view of the forewing to establish its ID with certainty.
TL Seow![]()